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2. BRIEF DESCRIPTION OF JOB DUTIES This position is a 60% Extension and 40% Research appointment in the Horticultural Sciences Department. The responsibilities of my position are to develop a statewide research/extension program in vegetable crop management (emphasizing potato) focusing on irrigation and nutrient management, specifically, to lead to the development of best management practices (BMP) for sustainable production of potato and vegetable crops in Florida and increased crop diversification. My research emphasizes the identification of alternative crops as well as potato and vegetable variety selection for Florida. My Extension program has statewide emphasis on education and dissemination of science-based information on vegetable production, cultivar adaptability, BMP for fertilizer and water management. The extension program development and implementation has been in response to the needs expressed by county and state Extension faculty, farmers, and allied industry representatives statewide, and it occurs in three main areas: improving the sustainability of vegetable production systems, providing leadership for the Florida vegetable and potato industry, and developing a statewide extension program for vegetable crops and potato. Research is conducted through the procurement of extramural funding and research results are published in peer-reviewed journals and educational material including EDIS. Graduate student supervision is essential for the successful completion of most research projects. Collaborators are based in Horticultural Sciences, Agronomy, Plant Pathology and Agricultural and Biological Engineering Departments.
3. AREAS OF SPECIALIZATION
• Vegetable production with emphasis on irrigation and nutrient management • Water conservation in irrigation systems • Conventional vegetable production systems
4. ASSIGNED ACTIVITY SINCE LAST PROMOTION (NOT TO EXCEED 10 YEARS), OR SINCE UF EMPLOYMENT
Year 2015-2016 2014-2015 2013-2014 2012-2013 2011-2012 2010-2011
Teaching 17% 10% 8% 2% 5% 5% Research 40% 40% 40% 40% 40% 30% Service 0% 0% 0% 0% 0% 0% Extension 53% 50% 52% 58% 55% 65% Clinical 0% 0% 0% 0% 0% 0% Total 100% 100% 100% 100% 100% 100%
5. EDUCATIONAL BACKGROUND
Institution Field of Study Degree Year Federal Rural University of Rural Rio de Janeiro, Brazil
Agronomy, Soil Sciences
Doctor of Philosophy
2005
Federal Rural University of Rio de Janeiro, Agronomy, Soil Master of 2000
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Brazil Sciences Science State University of Maringa, Brazil Agronomic
Engineering Bachelor of
Science 1997
6. EMPLOYMENT
Institution Position Dates University of Florida Assistant Professor
(tenure accruing) 2010-Present
University of Florida, Agricultural and Biological Eng. Department
Assistant Research Scientist (non-tenure accruing)
2007-2010
University of Florida, Agronomy Department Postdoctoral Research Associate (non-tenure accruing)
2005-2007
State University of Londrina, Brazil Assistant Professor (non-tenure accruing)
2003-2005
Commonwealth Scientific and Industrial Research Organization, Australia
Research Assistant (non-tenure accruing)
2000
7. YEAR TENURE/PERMANENT STATUS WAS AWARDED BY UNIVERSITY OF FLORIDA
N/A
8. UF TENURE AND PROMOTION CRITERIA: TENURE, PERMANENT STATUS, & PROMOTION CRITERIA To be entered by the Department Administration.
9. TEACHING, ADVISING AND/OR INSTRUCTIONAL ACCOMPLISHMENTS A. Educational Program
1. Teaching Context
Although I do not have a formal teaching appointment, I am actively involved in educating students. My teaching activities are concentrated on guiding graduate and undergraduate students through research projects related to sustainable vegetable production. I train interns and postdoctoral research and visisting scholars in advanced research methodology and techniques in vegetable mineral nutrition and irrigation practices. In addition, I teach as a guest lecturer in several courses in the Horticultural Sciences Department.
2. Teaching Philosophy
As an educator and mentor, I believe my role is to prepare my students to think critically and develop the ability to apply their acquired knowledge in ethical and unique ways. I strive to establish a stimulating learning environment by combining theoretical concepts with hands-on
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activities and thus, creating in my students a solid knowledge base. I strive to challenge my students to adopt non-traditional approaches to solving problems, and provide a stimulating learning environment that motivates them to do their best. I encourage students to be agents of change by providing them state-of-the art tools and equipment as well as reliable sources of information that will allow them to develop new ideas and concepts. I challenge my students to be self-directed learners. I strongly encourage them to not only learn the information, but also to develop their critical decision-making skills.
3. Educational Goals • To promote the application evidence-based knowledge to vegetable production • To promote knowledge of the research methods used in vegetable production • To promote knowledge of horticultural Extension • To promote an international perspective on vegetable production
B. Instructional Activities
1. Courses Taught: None 2. Other Instructional Activities
Guest lectures
GUEST LECTURES GIVEN 2010-2016
Course No.
Course Title Credits Year No. of times
taught
Enrolment range
Course Format
HOS 4283C
Advanced Organic and Sustainable Crop
Production
3 2016 2015
2
19 9
1 lecture and discussion
FCR1010 Growing Fruit for Fun and Profit
1 2016 2 150 1 lecture and discussion
HOS 3430/6412
Nutrition of Horticultural Crops
3 2015 2013 2011
3
46 36 20
4 lectures and discussion, Field trip with students
VEC 3221C
Commercial Vegetable Production
4 2014 2013 2011
3
7 10 10
2 lecture, field activity and discussion
FOS 6936/4936
International Studies – Brazil
2 2012 1
8 1 lecture and discussion
HOS 6412
Nutrition of Horticultural Plants
3 2015 1 15 1 lecture
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Individual studies
Independent Studies Supervised 2010-2016 Course
No. Year Course Title Credits %
Responsibility No. of
students supervised
Course format
HOS6905 2013 Independent Study
4 100% 1 Individual project
PLS4941 2013 Practical work experience
3 100% 1 Individual project
Academic Advising and Mentoring Year Student/Scientist Origin Project Activity (duration) 2015-2017
Rodrick Mwatuawa
Visiting Scholar – Malawi Potato breeding and variety development for improved quality and pest resistance in the eastern United States (24 months)
2014-2016
Courtney Miller Intern – undergraduate student from UF Horticultural Sciences
Potato breeding and variety development for improved quality and pest resistance in the eastern United States (14 months)
2016 Fernanda Krupek Intern - undergraduate student of Agronomy from University of Sao Paulo, Brazil
Evaluation of potato yield and fertilizer use efficiency under different irrigation systems (6 months)
2015 Mildred Makani Post Doctoral Research Associate, USA
Postharvest evaluation of potatoes for Florida conditions (6 months)
2015-2016
Heraldo Takao Hashiguti
Research Scholar - Ph.D. student of State University of Maringa, Brazil
Evaluation of spatial distribution of soil moisture in irrigation systems in Florida (18 months)
2014 Camila J. B. Ferreira
Research Scholar – M.S. student of State University of Maringá, Brazil
Evaluation of least limit water range for sandy soils cultivated with potatoes under subirrigation (7 months)
2014 Dario Racano Research Scholar – M.S. student from University of Foggia, Italy
Evaluation of potato yield under seepage, tile drainage and subsurface drip irrigation systems (10 months)
2013-2014
Edilene Carvalho Santos Marchi
Post Doctoral Research Associate – Professor from the Instituto Federal de Brasília, Brazil
Calibration and evaluation of N-Index model for statewide estimation of nitrogen leaching of vegetable crop systems (12 months)
2013-2014
Gabriel Philippe dos Santos
Intern - undergraduate student of Agronomy from Federal University of Lavras,
Study of climate seasonality on potato and cabbage production (8 months)
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Brazil 2013 Rangel Feijó de
Almeira Intern - undergraduate student of Agronomy from Universidade Federal Rural Rio de Janeiro, Brazil
Effect of salinity on development and tuberization of Solanum chacoensis under field condition (3 months)
2012-2014
Charles Ethan Kelly
Intern - undergraduate student of UF Plant Sciences, Environmental Horticulture
“Evaluation of methods to break dormancy of tuber of wild species of potato (Solanum chacoensis L.)” and the project “Development of high lutein and zeaxanthin potato germplasm” (22 months)
2012 Guilherme Bossi Buck
Post Doctoral Research Associate, Brazil
Enhanced diagnostic of potato nutritional status, soil fertility and crop management. Participated in international activities for the USAID project in Mozambique. (12 months)
2011-2012
Simone Costa Mello
Post Doctoral Resarch Associate from University of Sao Paulo – Escola Superior de Agricultura Luiz de Queiroz, Brazil.
Evaluation of irrigation and N-fertilizer management of cauliflower cultivated under plastic mulch and drip irrigation (6 months)
Curriculum enhancement
I collaborated in the restructuring of HOS 3430 and HOS 6412 (Nutrition of Horticultural Crops) in the spring of 2011 and 2013. I have further enhanced these courses by expanding the topics related to the interaction of irrigation and nutrient management of horticultural crops and the importance of best management practices of agricultural water conservation. I have participated in class field trip to visit vegetable growers and irrigation demonstration sites in the state for four years.
Scholarship of Teaching and Learning: None
International teaching activities
I have served as chair or member of M.Sc. and Ph.D. committees for several international students.
• External examiner of the M.Sc. dissertation of Ms. Du Raan, Department of Plant Production and Soil Science, University of Pretoria in South Africa. Jan. 2016. Dissertation title: “Nitrogen management effects on tuber initiation of selected potato
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cultivars.”
• Committee member for Mrs. Camila J.B. Ferreira, M.S. Student, Agronomy Department, State University of Maringa, Brazil. Dec. 2014. Thesis title: “Soil physical properties after long time under no-tillage as affected by sampling positions”.
Student Development I have met with graduate students to discuss their career goals and professional opportunities. I have written more than 20 recommendation letters to support students in job applications and graduate school. I have also encouraged and supported graduate student application to awards and student competitions at scientific meetings.
Mentoring I have mentored four post-doctoral research associates, three research scholars, and three undergraduate student interns on several research projects. The results from these students have been presented in national and state conferences, and are listed in Section 16.f and 16.i published as refereed proceedings and abstracts, respectively. Club and Organization Advisement I served as the advisor to the Horticultural Sciences Graduate Student Club from 2011 to 2014. The primary purpose of this organization is to create an environment for graduate students in the Horticultural Sciences Department within the University of Florida to meet and interact with one another on a social and an intellectual level. Our activities included: bimonthly meetings, guest lectures, social events, fundraisers such as strawberry, pumpkin and potato sales, and field trips related to horticulture. I traveled with the Citrus Club on an 8-day agricultural technical trip to visit farmers and agricultural enterprises in Greece in May, 2014. During the trip I gave a talk about the University of Florida and Gator Citrus Club to faculty and students of the American Farm School in Thessaloniki. 10. TEACHING EVALUATIONS: None 11. EDUCATIONAL PORTFOLIO Goal 1: To promote the application of evidence-based knowledge in sustainable vegetable production. Approach: When graduate students start their programs in my lab, I challenge them to develop a research proposal that not only expands the current knowledge about the research topic, but also includes a relevant contribution to society. I encourage them to seek solutions to problems they may face in their professional careers. I also encourage my advisees to work as a collaborative team to accomplish their field activities. Evidence: Two of my Ph.D. students were recognized by the International Plant Nutrition Institute with the 2013 and 2014 Scholar Award, an award conferred to research proposals that
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develop and promote responsible management of plant nutrition. In July 2016, one Ph.D. student was hired as Professor of Horticulture at the Zamorano Panamerican Agricultural School, in Honduras. Goal 2: To promote an understanding of the research process used in vegetable production. Approach: The research group I lead, which includes graduate students, postdocs, and a technician, meets bi-weekly to discuss the research topics related to their dissertations, field activities, and recent publications that are pertinent to their research. I also use our regular meetings to teach specific software (e.g. Sigma Plot; SAS; EndNote; Surfer) that will improve their skills in recent technology. In addition, individual, bi-weekly meetings are scheduled with students to problem-solve and discuss their progress with their research projects, classes, and other research or study-related activities. I encourage and sponsor my graduate students to present their research findings in national and regional conferences, and write manuscripts. Evidence: My graduates have made 34 national and state professional meeting presentations. Three of my Ph.D. students received awards in graduate student competitions in national and state conferences. I require my graduate students to write and publish their research findings in peer-reviewed journals, and have co-authored 20 papers, 2 book chapters and 36 abstracts with graduate students.
Goal 3: To promote an understanding of horticultural extension.
Approach: I encourage my graduate students to participate in our extension programs such as field days, farm visits, and other industry-focused events. These activities expose these developing professionals to the reality of Florida’s farming systems and to the teaching methods and resources utilized in Extension programming. In addition, I encourage my graduate students to translate research findings for various target audiences including vegetable growers. Evidence: I have co-authored 11 EDIS and 4 articles in trade magazines and newsletters with my graduate students. Also, my graduate students have presented at numerous IFAS Extension field days. One Ph.D. student conducted a 2-yr on-farm demonstration of a production system that he developed during his Ph.D., which exposed him to Extension work. The same student has since been hired by the UF-IFAS Extension as a Water Resources Regional Specialized Agent of Extension.
Goal 4: To promote an international perspective of vegetable production.
Approach: I encourage my graduate students to work collaboratively with students and professionals from other countries and also, to seek out opportunities for research abroad. Evidence: I have hosted students, interns and postdocs from Brazil, Italy, and Malawi, which has created great opportunities for my students to interact with students and professionals from different institutions and backgrounds. In addition, my first Ph.D. student carried out research projects at the International Potato Center (CIP) in Peru (see section 22) and an Extension experience in Ghana.
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Teaching-related improvement activities: I have participated in several relevant short courses to improve my knowledge and thus, better support my advisees. For example, some of my advisees’ research projects have required the use of models such as Decision Support System for Agrotechnology Transfer (DSSAT), Global Information System (GIS), and Geostatistical and Water Quality analysis for field data collection. Short courses attended:
• Decision Support System for Agrotechnology Transfer (DSSAT) - Crop Modeling Training. 2013. University of Georgia, Griffin, GA. 48h training, sponsored by Dean of Research.
• Grant Writing Training. 2013. University of Florida, Gainesville, FL, 8h training, sponsored by Dean of Research.
• Water Quality Course. 2012. University of Florida, Homestead, FL, 40h course. Sponsored by UF-IFAS.
• Global Information System (GIS). 2011. University of Florida, Gainesville, FL, 24h course, sponsored by the UF-IFAS.
• Geostatistical Analysis of Environmental Data. 2010. University of Florida, Gainesville, FL, 40h course.
• Advances of Nitrogen Management Practices for Water Quality. 2006. Soil and Water Conservation Society, Soil Science Society of America, Agricultural Research Service and National Water Management Center. Indianapolis, IN, 8h course.
• Practical Geostatistics. 2005. Agricultural and Biological Eng. Dept. University of Florida, Gainesville, FL, 16h course.
12. GRADUATE COMMITTEE ACTIVITIES
Candidate’s Role Student Major Complete Date Chair Ph.D. Carlos Zambrano-Vaca Horticultural Sciences Expected 2019
Chair Ph.D. Andre Biscaia Riberio da Silva
Horticultural Sciences Expected 2017
Chair Ph.D. Emmanuel Torrez-Quezada
Horticultural Sciences Expected 2016
Chair Ph.D. Christian Christensen Horticultural Sciences August 2016 Chair Ph.D. Charles Barrett Horticultural Sciences May 2016 Chair Ph.D. Libby Rens Horticultural Sciences December 2015 Chair, M.S. Lucas Paranhos Horticultural Sciences December 2015 Chair, M.S. Joel Reyes-Cabrera Horticultural Sciences August 2013 Co-Chair, Ph.D. (20%) Eduardo Gelcer Agricultural & Biological
Engineering Expected 2017
Co-Chair, Ph.D. (50%) Mildred Makani Horticultural Sciences December 2014 Member Ph.D. Xianju Fu Horticultural Sciences Expected 2019
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Member Ph.D. Prosanta Dash Horticultural Sciences Expected 2019 Member Ph.D. Maria Zamora Agricultural and
Biological Engineering Expected 2019
Member Ph.D. Rubi Raymundo Carhuapoma
Agricultural & Biological Engineering
Expected 2016
Member Ph.D. Curtis Jones Agricultural & Biological Engineering
May 2013
Member Ph.D. Subodh Acharya Soil and Water Science May 2012 Member Ph.D. Diana Edlin Horticultural Sciences Resigned 2012 Member Master’s Salah Alshabibi Horticultural Sciences May 2016 Member Master’s Deanroy Mbabazi Agricultural and
Biological Engineering December 2015
Member Master’s Muna Abbas Agricultural and Biological Engineering
December 2014
Member Master’s Carlos Zambrano-Vaca Horticultural Sciences December 2014 Member Master’s Miurel Bruwer Soil and Water Sciences December 2014 Member Master’s Wei Lee Horticultural Sciences December 2013 Member Master’s Maria Zamora Agricultural and
Biological Engineering December 2013
Member Master’s Christopher Rouse Horticultural Sciences December 2013 Member Master’s Dakson Sanon Horticultural Sciences May 2013 Member Master’s Emmanuel T. Quesada Horticultural Sciences December 2012 Member Master’s Seth Byrd Agronomy December 2012 Member Master’s Eduardo Gelcer Agricultural and
Biological Engineering August 2012
External Ph.D. Eunice Yarney Soil and Water Sciences Expected 2016 External Ph.D. Amy Hylkema Soil and Water Science Expected 2016
Honors received by Graduate Students under my supervision:
International level:
• Libby Rens, International Plant Nutrition Institute (IPNI) Scholar Award 2014. $2,000 award, Sep. 2014.
• Charles Barrett, International Plant Nutrition Institute (IPNI) Scholar Award 2013. $2,000 award, Sep. 2013.
National level:
• Libby Rens, USDA Borlaug Fellowship for a 6-month internship at International Potato Center in Lima, Peru. $15,000. 2014.
• Christian Christensen, 2nd place in the Potato Association of America Graduate Student Competition, Spokane, WA, Jul. 2014.
• Christian Christensen, Southeast Region – American Society of Horticultural Sciences, Blue Ribbon Extension Communication Award, 2014.
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• Libby Rens, 4th place in the Ph.D., award of $100. Oral Nitrogen Management Competition in the Agronomy Society of America Annual Meeting in Tampa, FL, Nov. 2013.
State Level:
• Christian Christensen, 1st place in the Best Oral Presentation Competition in the Florida State Horticultural Society Annual Meeting, award of $300, Stuart, FL, Jun. 2016.
• Emmanuel Torres-Quesada, 2nd place in the Best Oral Presentation Competition in the Florida State Horticultural Society Annual Meeting, award of $200, Sarasota, FL, Jun. 2013.
University level:
• Libby Rens, “Williams F. Ward Memorial Scholarship” for 2013-2014 academic year.
• Libby Rens, UF College of Agriculture and Life Sciences Scholarship, $5,000 for 2012 academic year.
• Christian Christensen, “James H. Davis Memorial Scholarship” for 2012 academic year.
• Charles Barrett, University of Florida Graduate School Fellowship Award for Ph.D. for 2012-2016 academic year.
13. CONTRIBUTION TO DISCIPLINE/RESEARCH NARRATIVE Florida is the second highest producer of the fresh-market vegetables in the US. In 2014, approximately 225,600 acres were cultivated with commercial fresh vegetable crops with an annual crop value of $1.6 billion. There is an urgent need to develop environmentally friendly cultivation practices that will increase yield (e.g. new adapted crop varieties; disease resistant, alternative crops), reduce costs, conserve water resources, and most importantly improve the environmental sustainability of the production system. Several stringent regulations continue to be applied to the agricultural sector which require growers to quickly change or adapt their operations to be in compliance. More specifically, there is a growing concern about the large demand for water that agriculture requires for food production and its effects on quality. In 2010, agricultural irrigation accounted for 48% of the fresh water withdraws. According to Florida Department of Environmental Protection's (FDEP), Florida is the third largest state in the nation, and by 2030 the demand for water is expected to increase significantly. The groundwater resources will not be sufficient to meet future demands in large areas of the state. In addition, California which produces the majority of vegetables and fruits eaten by the rest of the country, continues to suffer with the long-term drought; this will pressure Florida to increase its horticultural crop production. The predominant irrigation system for vegetable production in Florida is a type of subirrigation, known as seepage. Fresh water is pumped from aquifers to raise the water table. Such irrigation requires large amounts of water (estimated 500,000 gal/acre/season) which results in excessive water loss from the fields due to drainage and runoff, facilitating nutrient leaching. In response to
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this loss of nutrients, more fertilizer is required to maintain crop yields. In 2010, several waterways in Florida have been classified as impaired by the State’s Total Maximum Daily Load regulations due to high concentrations of nitrogen (N) and phosphorus (P). Runoff from agricultural, urban and suburban areas are identified sources of nutrient pollution. In order to meet the new standards for water quality, producers have voluntarily enrolled in the Florida Department of Agriculture and Consumer Services (DACS) Best Management Practices (BMP) program. My research program entitled “Improving best management practices for soil, nutrient and water management in Florida agricultural systems”, has three components and is reported under the CRIS project FLA-HOS-005164. 1. Irrigation Methods and Management. Agricultural water conservation has become one of the priorities of my research program. One remarkable outcome of the USDA-Block Grant funded research was the development of a new cabbage production system by two of my graduate students that utilizes high plant populations grown on top of row-covering plastic mulch and supplied with drip irrigation. With a significant increase of cabbage yield per area, this method reduced irrigation requirement by 40% and increased the profits by 54% compared to seepage bare-ground production (Barrett1 et al. 2015; Paranhos1 et al. 2016). We also developed an irrigation smartphone app for cabbage/vegetables to assist growers with irrigation decisions (Migliaccio et al. 2016). For potato production, the use of drip irrigation can significantly reduce irrigation requirements by 48-88% compared to seepage, while improving tuber quality and storability for fresh market (Reyes-Cabrera1 et al. 2014, 2016; Makani1 et al., 2015). Research was also conducted to improve management of the current seepage system. We identified that maintaining the water table at 24-36 inches below the top of the potato row reduced irrigation requirement by 300,000 gal/ac/season without affecting potato yield. The lower water table also minimized risks associated with extreme weather events. Since 2010, 13 peer-reviewed papers were published regarding irrigation technology and management. 2. Fertilizer Management –The establishment of proper guidelines for the N-fertilization and timing of application is imperative to assuring maximum production with minimum N leaching losses. From 2010 to 2014, my research program has established 28 large field trials in collaboration with six potato growers to investigate the effect of N-rates and application timing on potato yield and tuber quality. The outcomes of this comprehensive study indicated the ideal N-rate ranges for each application timing that would maximize yields with the lowest soil residual N after harvest (Rens1 et al. 2015ab, 2016ab; Zotarelli et al. 2014, 2015). Our research has also defined appropriate N-rates for vegetables (cabbage, tomatoes and peppers) cultivated on plastic mulch and calibrated the N-Index Model for N leaching prediction under these systems (Marchi2 et al. 2016, submitted) for Florida.
1Graduate student 2 Post doctoral research associate
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3. Multi-State Potato and Broccoli Germplasm Evaluation - My research program is part of a multi-state breeding and variety development effort in the eastern U.S. Annually, the program screens new germplasm of potatoes and recently of broccoli (see Item 18.a) from public and private plant breeding programs and select germplasm with potential for improved yield/quality, nitrogen use efficiency, disease resistance and adaptability to Florida. The variety trials have resulted in the selection of the chipping potato clone recently released as ‘Elkton.’ This clone has an average increase of 15% in marketable yield with resistance to internal heat necrosis (Haynes et al., 2014). The research has been published in recognized scientific journals as Field Crops Research (5yr impact factor (IF) 3.354), Agricultural Water Management (IF, 3.017), Agronomy Journal (IF, 1.441), Scientia Horticulturae (IF, 1.785), HortScience (IF, 0.902) and American Journal of Potato Research (IF, 1.204). Summary of Research Accomplishments Since 2010 Total Refereed research publications 29 44 Book chapters 6 13 Refereed proceedings 6 9 Proceedings and abstracts (non-refereed) 53 109 Graduate student – Chair and Co-Chair 9 9 Funded grants and contracts (Direct cost external & internal) $2,300,021 $2,300,021
14. CREATIVE WORKS OR ACTIVITIES
Cultivar Release 1. ‘Elkton’ – Potato chipping variety - joint release with USDA-ARS – Potato Breeding
Program in Beltsville and University of Florida in October 2012. UF-IFAS Potato Variety Evaluation Program conducted 32 field trials to evaluate ‘Elkton’ performance to Florida’s growing conditions between 2003 and 2012 (I have participated since 2010).
Irrigation App for Smartphones 1. I have collaborated in the design and testing of Vegetable Smartirrigation App for
smartphones to improve irrigation management of vegetable crops. Available to download at: https://itunes.apple.com/us/app/smartirrigation-vegetable/id968119727?mt=8
Equipment Design 1. Prototype unit for potato specific gravity evaluation, 2011. A pneumatic piston system to
facilitate and accelerate the evaluation of potato tuber specific gravity. This system can be used for commercial or research purpose (M.K. Agha, D. F. Schiavone, S. Sargent, L. Zotarelli). I have collaborated on the design and testing of the prototype.
Software Improvement – Nitrogen Index Tool (N-Index 4.5) released Jan. 1 2015.
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1. Nitrogen Index Tool – N-Index 4.5 software designed by USDA-ARS-NRCS to identify agricultural fields at great risk for nitrogen loss to the environment. The N-Index Model was calibrated and tested to quantify N losses in vegetable production systems of Florida. I have mentored Dr. Edilene Marchi (Postdoctoral Research Associate see section 9.B and paper submitted in section 33) on this project.
Websites 1. Eastern Potato Variety Development Database Website -
https://potatoes.ncsu.edu/nesrch.php - This website host the potato variety trial database of the Regional Project NE1231 - Eastern Potato Variety Development which my research program is active collaborator. Production facts (yield, quality traits) from most of potato varieties cultivated in field trials by University of Florida between 1998 and 2015 are available in this website.
2. Agroclimate Mozambique - http://mz.agroclimate.org/sobre/
3. UF-IFAS Vegetable Variety Trials Website. http://hos.ufl.edu/extension/variety-trials Instructional Multimedia Presentations (6) Multimedia presentation accessible to University of Florida County Extension Faculty (Gator password required):
1. Zotarelli, L. Fraisse, C. and Dourte, M. “MicroIrrigation, Adaptation to Climate Change” http://entomology.ifas.ufl.edu/fasulo/presentations/irrigation.shtml
2. Zotarelli, L. “Sustainable Potato Production” http://entomology.ifas.ufl.edu/fasulo/presentations/soil.shtml
3. Zotarelli, L. “Cucurbit fertilization” http://entomology.ifas.ufl.edu/fasulo/presentations/soil.shtml
4. Zotarelli, L. and Lands, S. “USDA-NRCS Web Soil Survey access and use soil maps of “your farm” on planning and management of regular farm operations Demonstration” http://entomology.ifas.ufl.edu/fasulo/presentations/soil.shtml
5. Zotarelli, L. “Irrigation and nutrient management of vegetable crops in Florida” http://entomology.ifas.ufl.edu/fasulo/presentations/irrigation.shtml
6. Zotarelli, L. “Irrigation Methods and Tools” http://entomology.ifas.ufl.edu/fasulo/presentations/soil.shtml
15. PATENTS AND COPYRIGHTS: None 16. PUBLICATIONS
“key” to indicate author relationships: (Senior/principal author(s) = underlined; self = bold; fellow = f; graduate student = g; other = &; post-doctoral associate/fellow = p; resident = r)
a. Books, Sole Author: None
b. Books, Co-Authored: (2)
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1. Zotarelli, L., S.R.P. Schuab, J.O.A. Sena, A. de L.E. Braccini. 2004. Methodologies of plant root system studies. Maringá: Eduem, v. 1. 33p. ISBN: 8576280051. (in Portuguese)
2. Zotarelli, L., A. de L.E. Braccini. 2002. Crop succession: soybean and corn. Maringá: Eduem, 2002. v. 1. 27p. ISBN: 01038885 (in Portuguese)
c. Books, Edited: None
d. Books, Contributor of Chapter(s) (13) 1. Gelcer, E.M.g, C.W. Fraisse, L. Zotarelli. 2015. Climatic monitoring system:
Agroclimate Mozambique. In: Horticultura em Moçambique: caracterização, tecnologias de produção e de pós-colheita. Ed. Haber et al., Brasília: Embrapa. p.213-218. (in Portuguese)
2. Mussane, C.R.B., N.A. Peres, T.O. Mutemba, C.C. Ecole, F. Caravela, H. Maia, L. Zotarelli. 2015. Strawberry production in Mozambique. In: Horticultura em Moçambique: caracterização, tecnologias de produção e de pós-colheita. Ed. Haber et al. Brasília: Embrapa. p.169-179. (in Portuguese)
3. Maia, H., C.J.T. Simpho, H.R. Silva, L. Zotarelli, E.M. Gelcerg. 2015. Irrigation systems. In: Horticultura em Moçambique: caracterização, tecnologias de produção e de pós-colheita. Ed. Haber et al. Brasília: Embrapa. p.117-144. (in Portuguese)
4. Scholberg, J.M.S., L. Zotarelli, M.D. Dukes, M. Ozores-Hampton, G. Liu. 2013. Enhancing fertilizer efficiency in high input cropping systems in Florida. In: Sustainable Agriculture Reviews. Ed. Lichtfouse, E. Springer. Dorbrecht. 12: 143-174.
5. Scholberg, J.M.S., S. Dogliotti, L. Zotarelli, C.M. Cherr, C. Leoni, W.A.H. Rossing 2010. Cover crops in agrosystems: Innovations and applications. In: Genetic engineering, biofertilisation, soil quality and organic farming. Eric Lichtfouse, Ed. Dordrecht; London:Springer, 2010: 59-97.
6. Scholberg, J.M.S., S. Dogliotti, C. Leoni, C.M. Cherr, L. Zotarelli, W.A.H. Rossing 2010. Cover crops for sustainable agrosystems in Americas. In: Genetic engineering, biofertilisation, soil quality and organic farming. Eric Lichtfouse, Ed. Dordrecht; London: Springer, 2010: 23-58.
7. Boddey, R.M., C.P. Jantalia, L. Zotarelli, A. Okito, B.J.R. Alves, and S. Urquiaga. 2008. Techniques for the quantification of plant-associated biological nitrogen fixation. In: Biological Nitrogen Fixation: Towards Poverty Alleviation through Sustainable Agriculture, 42:37-41.
8. Boddey, R.M., C.P. Jantalia, L. Zotarelli, A. Okito, B.J.R. Alves, S. Urquiaga, and T.J.C. Amado. 2008. Nutrient mining or carbon sequestration? BNF inputs can make the difference. In: Biological Nitrogen Fixation: Towards Poverty Alleviation through Sustainable Agriculture, 42: 11-14.
9. Urquiaga, S., C.P. Jantalia, L. Zotarelli, E.S. Araujo, B.J.R. Alves, R.M. Boddey, W.A. R.L. Cabezas, H.P. Santos, E. Torres. 2006. Nitrogen dynamics in soybean-based crop rotation under conventional and zero tillage in Brazil. In: International Atomic Energy Agency: Management practices for improving sustainable crop production in tropical
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acid soils. Vienna: IAEA, 2006. p.13-46. 10. Jantalia, C. P., B.J.R. Alves, L. Zotarelli, R. M. Boddey, S. Urquiaga. 2006. Change in
soil C stocks in grain production areas: evaluation of soil management impacts. In: Agricultural Systems Management: Impact on soil carbon sequestration and greenhouse gas emissions. Alves, B.J.R., S. Urguiaga, C. Aita, R.M. Boddey, C.P. Jantalia, F.A.O. Camargo. (Ed.). 1ed. Porto Alegre: Genesis. p.35-58. (in Portuguese)
11. Jantalia, C.P., L. Zotarelli, H.P. dos Santos, E. Torres, S. Urquiaga, R.M. Boddey, B.J.R. Alves. 2006. Mitigation of nitrous oxide production in agricultural systems: evaluation of agricultural practices used on grain production in South Brazil. In: Agricultural Systems Management: Impact on soil carbon sequestration and greenhouse gas emissions. Alves, B.J.R., S. Urguiaga, C. Aita, R.M. Boddey, C.P. Jantalia, F.A.O. Camargo. (Ed.). 1ed. Porto Alegre: Genesis. p.81-108. (in Portuguese)
12. Alves, B.J.R., L. Zotarelli, C.P. Jantalia, R.M. Boddey, S. Urquiaga. 2005. Use of carbon and nitrogen stable isotopes in plant-soil system studies. In: Biologic Processes in the Soil-Plant Systems: Tolls for a Sustainable Agriculture. Aquino, A.M., R.L. Assis. (Ed.). Brasília, DF: Embrapa Informação Tecnológica, 1: 343-368. (in Portuguese)
13. Urquiaga, S., C. P. Jantalia, L. Zotarelli, B.J.R. Alves, R.M. Boddey. 2005. Management of Agricultural systems to enhance soil carbon sequestration. In: Biologic Processes in the Soil-Plant Systems: Tolls for a Sustainable Agriculture. Aquino, A.M., R.L. Assis. (Ed.). Brasília, DF: Embrapa Informação Tecnológica. 1: 323-342. (In Portuguese)
e. Monographs: None
f. Refereed Publications Refereed Journals (44 total, 29 since appointment as Assistant Professor)
1. Raymundo, R.g, S. Asseng, R. Prassad, U. Kleinwechter, J. Concha, B. Condori, W. Bowen, J. Wolf, J.E. Olesen, Q. Dong, L. Zotarelli, M. Gastelo, A. Alva, M. Travasso, R. Quiroz, V. Arora, W. Graham, C. Porter. 2016. Performance of the SUBSTOR-potato model across contrasting growing conditions. Field Crops Research. doi:10.1016/j.fcr.2016.04.012.
2. Reyes-Cabrera, J.g, L. Zotarelli, M.D. Dukes, D.L. Rowland., S.A. Sargent. 2016. Soil moisture distribution under drip irrigation and seepage for potato production. Agricultural Water Management. 169: 183-192.
3. Paranhos, L.G.g, Barrett, C.E.g, L. Zotarelli, R.L. Darnell, K. Migliaccio, T. Borisova. 2016. Planting date and in-row plant spacing effects on growth and yield of cabbage under plastic mulch. Scientia Horticulturae. 202: 49-56.
4. Rens, L.R.g, L. Zotarelli, A. Alva, D.L. Rowland, G. Liu, K.T. Morgan. 2016a. Fertilizer nitrogen uptake efficiencies for potato as influenced by application timing. Nutrient Cycling in Agroecosystems. 104: 175-185.
5. Liao, X., Z. Su, G. Liu, L. Zotarelli, C. Snodgrass. 2016. Impact of soil moisture and temperature on potato production using seepage and center pivot irrigation. Agricultural Water Management. 165: 230-236.
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6. Rens, L.R.g, L. Zotarelli, D.J. Cantliffe, P. Stoffella, D. Gergela, D. Fourman. 2016b. Commercial evaluation of seasonal distribution of nitrogen fertilizer for potato. Potato Research. 59: 1-20.
7. Zambrano-Vaca, C.g, M. Olmstead, L. Zotarelli, N. Boyd, B.M. Santos. Effect of pine bark volume and ventilation for bell pepper production in high tunnels. Scientia Horticulturae. 207: 203-207.
8. Ferreira, C.J.B.f, C.A. Tormena, W.H. Moreira, L. Zotarelli, E. Betioli Jr., G. Anghinoni. 2016. The sampling position under no-tillage system affects the results of soil physical properties. Revista Bras. Ciência do Solo. 40: e0150189. DOI: 10.1590/18069657rbcs20150189
9. Migliaccio, K.W., K.T. Morgan, G. Vellidis, L. Zotarelli, C. Fraisse, D. Rowland, J.H. Andreis, J.H. Crane. 2016. Smartphone apps for irrigation scheduling. Transaction of ASABE. 59(1): 291-301.
10. Makani, M.N.g, S.A. Sargent, L. Zotarelli, D.J. Huber, C.A. Sims. 2015. Irrigation method and harvest time affect storage quality of two early-season, tablestock potato (Solanum tuberosum L.) cultivars. Scientia Horticulturae. 197: 428-433.
11. Rens, L.R.g, L. Zotarelli, D.J. Cantliffe, P. Stoffella, D. Gergela, D. Fourman. 2015a. Rate and timing of nitrogen fertilizer application on potato 'FL1867' Part II: Marketable yield and tuber quality. Field Crops Research. 183: 267-275.
12. Zotarelli, L., L.R. Rensg, D.J. Cantliffe, D. Gergela, P. Stoffella, D. Fourman. 2015. Rate and timing of nitrogen fertilizer application on potato 'FL1867' Part I: plant nitrogen uptake and soil nitrogen availability. Field Crops Research. 183: 246-256.
13. Barrett, C.E.g, L. Zotarelli, L.G. Paranhosg, P. Dittmar, C.W. Fraisse, J.J. VanSickle. 2015. Optimum planting configuration for commercial high population plasticulture grown cabbage. HortScience 50: 1472-1478.
14. Byrd, S.A.g, D.L. Rowland, J. Bennett, L. Zotarelli, D. Wright, A. Alva, J. Nordgaard. 2015. The relationship between sap flow and commercial soil water sensor readings in irrigated potato (Solanum tuberosum L.) production. American Journal of Potato Research. 92: 582-592.
15. Zambrano-Vaca, C.g, M. Olmstead, L. Zotarelli, N. Boyd, B.M. Santos. 2015. Plastic roof materials as they affect bell pepper production in high tunnels. International Journal of Vegetable Science. DOI:10.1080/19315260.2015.1076922
16. Torres-Quezada, E.A.g, L. Zotarelli, V.M. Whitaker, B.M. Santos and Hernandez-Ochoa, I. 2015. Initial crown diameter of strawberry bare-root transplants affects early and total fruit yield. HortTechnology. 25: 203-208.
17. Torres-Quezada, E.A.g, B.M. Santos, L. Zotarelli, D.D. Treadwell. 2015. Soilless media and containers for bell pepper production. International Journal of Vegetable Science. 21: 177-187.
18. Rens, L.R. g, L. Zotarelli, D.J. Cantliffe, D. Gergela, P. Stoffella, D. Fourman. 2015b. Biomass accumulation, marketable yield, and quality of Atlantic potato in response to nitrogen. Agronomy Journal. 107: 931-942.
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19. Zotarelli, L., L.R. Rensg, D.J. Cantliffe, D. Gergela, P. Stoffella, D. Fourman. 2014. Nitrogen fertilizer rate and application timing for chipping Potato ‘Atlantic’. Agronomy Journal. 106: 2215-2226.
20. Jones, C.D.g, K.T. Morgan, C.H. Porter, J.Z. Wu, C.W. Fraisse, L. Zotarelli, 2014. Addition of a two-dimensional water balance model to the DSSAT-CSM. Transaction of ASABE. 57(6): 1-14.
21. Byrd, S.A.g, D.L. Rowland, J. Bennett, L. Zotarelli, D. Wright, A. Alva, J. Nordgaard. 2014. Reductions in a commercial potato irrigation schedule during tuber bulking in Florida: physiological, yield, and quality effects. Journal of Crop Improvement. 28: 660-679.
22. Chakrabarti, S., T. Bongiovanni, J. Judge, L. Zotarelli, C. Bayer. 2014. Assimilation of SMOS soil moisture for quantifying drought impacts on crop yield in agricultural regions. Journal of Selected Topics in Applied Earth Observations and Remote Sensing. 7: 3867-3879.
23. Reyes-Cabrera, J.g, L. Zotarelli, M.D. Dukes, S.A. Sargent, D.L. Rowland. 2014. Drip as alternative irrigation method for potato in Florida sandy soils. American Journal of Potato Research. 91: 504-516.
24. Haynes, K.G., D. Gergela, X. Qu, M.W. Peck, G.C. Yencho, M.E. Clough, M.R. Henninger, D.E. Halseth, G.A. Porter, P.C. Ocaya, L. Zotarelli, S. Menasha, B.J. Christ, and C. Hutchinson. 2014. Elkton: A new potato variety with resistance to internal heat necrosis for chipping directly from the field in the south. American Journal of Potato Research. 91: 269-276.
25. Gelcer, E.g, C.W. Fraisse, K. Dzotsi, Z. Hu1, R. Mendes, L. Zotarelli. 2013. Effects of El Niño southern oscillation on the space-time variability of agricultural reference index for drought in midlatitudes. Agriculture and Forest Meteorology. 174-175: 100-128.
26. Zotarelli, L., N.P. Zatorre, B.J.R. Alves, C.P. Jantalia, J.C. Franchini, S. Urquiaga, R.M. Boddey. 2012. Influence of no-tillage and frequency of a green manure legume in crop rotations on balancing N outputs and preserving soil organic C stocks. Field Crop Research. 132: 185-195.
27. Zotarelli, L., M.D. Dukes, J.M.S. Scholberg, K.L. Femminella, and R. Munoz Carpena 2011. Irrigation scheduling of green bell pepper using capacitance soil moisture sensors. Journal of Irrigation and Drainage Engineering. 137: 73-81.
28. Dukes, M.D., L. Zotarelli, K.T. Morgan. 2010. Use of irrigation technologies for vegetable crops in Florida. HortTechnology. 20: 133-142.
29. Morgan, K.T., L. Zotarelli, M.D. Dukes. 2010. Use of irrigation technologies for citrus trees in Florida. HortTechnology. 20: 74-81.
30. Zotarelli, L., M.D. Dukes, J.M.S. Scholberg, R. Munõz-Carpena, and J. Icerman. 2009. Tomato nitrogen accumulation and fertilizer use efficiency on a sandy soil, as affected by nitrogen rate and irrigation scheduling. Agricultural Water Management. 96:1247-1258.
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31. Scholberg, J.M.S., L. Zotarelli, S.R. Tubbs, M. D. Dukes, R. Muñoz-Carpena. 2009. Nitrogen uptake efficiency and growth of bell pepper in relation to time of exposure to fertilizer solution. Communication in Soil Science and Plant Analysis. 40: 2111-2131.
32. Zotarelli, L., L. Ávila, J.M. Scholberg, B.J.R. Alves. 2009. Benefits of vetch and rye cover crops to sweet corn under no-tillage. Agronomy Journal. 101: 252-260.
33. Zotarelli, L., J.M. Scholberg, M.D. Dukes, R. Munõz-Carpena, and J. Icerman. 2009. Tomato yield, biomass accumulation, root distribution and water use efficiency on a sandy soil, as affected by nitrogen rate and irrigation scheduling. Agricultural Water Management. 96: 23-34.
34. Zotarelli, L., J.M.S. Scholberg, M.D. Dukes, R. Muñoz-Carpena. 2008. Fertilizer residence time affects nitrogen uptake efficiency and growth of sweet corn. Journal of Environmental Quality. 37: 1271-1278.
35. Zotarelli, L., M.D. Dukes, J.M.S. Scholberg, T. Hanselman, K. Femminella, R. Muñoz-Carpena. 2008. Nitrogen and water use efficiency of squash for a plastic mulch bed system on a sandy soil, as affected by nitrogen rate and irrigation method. Scientia Horticulturae. 116: 8-16.
36. Zotarelli, L., J.M.S. Scholberg, M.D. Dukes, R. Muñoz-Carpena. 2007. Assessing methods for monitoring N leaching dynamics of raised-bed plastic-mulched vegetables produced on a sandy soil. Journal of Environmental Quality. 36: 953-962.
37. Denef, K., L. Zotarelli, R.M. Boddey, and J. Six. 2007. Microaggregate-associated carbon as a diagnostic fraction for management-induced changes in soil organic carbon in two Oxisols. Soil Biology and Biochemistry. 39: 1165-1172.
38. Zotarelli, L., B.J.R. Alves, S. Urquiaga, R.M. Boddey and J. Six. 2007. Impact of tillage and crop rotation on light fraction and intra-aggregate soil organic matter in two Oxisols. Soil and Tillage Research. 95: 196-206.
39. Jantalia, C. P., D.V.S. Resck, B.J.R. Alves, L. Zotarelli, S. Urquiaga and R.M. Boddey. 2007. Tillage effect on C stocks of a clayey Oxisol under a soybean-based crop rotation in the Brazilian Cerrado region. Soil and Tillage Research. 95: 97-109.
40. Alves, B.J.R., L. Zotarelli, F. M. Fernandes, J. C. Heckler, R. A. T. Macedo, R. M. Boddey, C. P. Jantalia and S. Urquiaga. 2006. Biological nitrogen fixation and nitrogen fertilizer on the nitrogen balance of soybean, maize and cotton. Pesquisa Agropecuária Brasileira. 41: 449-456. (in Portuguese)
41. Cardoso, E. G., L. Zotarelli, J.L. Piccinin, E. Torres, O.F. Saraiva, M. F. Guimarães. 2006. Soybean root system in function of soil compaction under no-tillage system. Pesquisa Agropecuária Brasileira. 41: 493-501. (in Portuguese)
42. Zotarelli, L., B.J.R. Alves, Urquiaga, S., Torres, E., Santos, H. P., Paustian, K., Boddey, R. M., Six, J. 2005. Impact of tillage and crop rotation on aggregate-associated carbon in two oxisols. Soil Science Society of America Journal. 69: 482-491.
43. Zotarelli, L., E.G. Cardoso, J. L. Piccinin, S. Urquiaga, R. M. Boddey, E. Torres, B.J.R. Alves. 2003. Calibration of a Minolta SPAD-502 chlorophyll meter for evaluation of the
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nitrogen nutrition of maize. Pesquisa Agropecuária Brasileira. 38: 1117-1122. (in Portuguese)
44. Alves, B.J.R., L. Zotarelli, A.S. Resende, J.C. Polidoro, S. Urquiaga, R.M. Boddey. 2000. A rapid and sensitive determination of nitrate in plant tissue using flow injection analysis. Communications in Soil Science and Plant Analysis. 31: 2739-2750.
Refereed Proceedings (9)
1. Cui, Y., Liao, X., G. Liu, L. Zotarelli, C. Snodgrass, A. Jones. 2015. Water savings of center pivot irrigation for snap bean production in southwest Florida. Proc. Fla. State Hort. Soc. 128: (in press).
2. Torres-Quezada, E.A.g, L. Zotarelli, V.M. Whitaker, R.L. Darnell, K.T. Morgan. 2015. Investigating technologies for florida-produced strawberry plug transplants. Proc. Proc. Fla. State Hort. Soc. 128: (in press).
3. Olmstead, M., L. Zotarelli, J. Brecht, M. Ross. 2015. Impact of nitrogen on vegetative growth of mature peach trees in a subtropical climate. Proc. 8th Intl. Peach Symposium Eds.: C. Xiloyannis et al. Acta Hort. 1084, ISHS 2015. 459-464.
4. Liao, X., G. Liu, L. Zotarelli, B. Santos, T. Salame-Donoso, C. Snodgrass, A. Jones. 2014. Water savings for potato production using center pivot irrigation in southwest Florida. Proc. Fla. State Hort. Soc. 127: 85-87.
5. Makani, M. N.g, S.A. Sargent, L. Zotarelli, Reyes-Cabrera, J.g,2013. Postharvest quality of tablestock potatoes in response to drip irrigation and harvest time. Proc. Proc. Fla. State Hort. Soc. 126: 184–186.
6. Zotarelli, L., M.D. Dukes, T.P. Barreto, T.P. 2010. Indirect determination of crop-coefficient of bell pepper using soil moisture sensors. 5th National Decennial Irrigation Conference, Phoenix, AZ – CD-ROM.
7. Zotarelli L., M.D. Dukes. T.P. Barreto. 2009. Use of soil moisture sensor-based irrigation on vegetable crops. Proc. Fla. State Hort. Soc. 122: 218-221.
8. Zotarelli L., B.J.R. Alves, E. Torres, S. Urquiaga, R.M. Boddey. 2003. Substitution of N fertiliser supply for maize with lupin as a winter crop in rotations under zero and conventional tillage in southern Brazil. 12th Nitrogen Workshop: controlling nitrogen flows and losses. Expanded abstract. p.559-561.
9. Sisti C., H.P. Santos, J.E. Denardin, L. Zotarelli, B.J.R. Alves, S. Urquiaga, R.M. Boddey. 2003. Nitrogen inputs control carbon accumulation under no-till agriculture. 3rd International Conference on Land Degradation and Meeting of the IUSS Sub-commission C - Soil and Water Conservation, Rio de Janeiro, Brazil. Documentos - Embrapa Solos. 40: p.1-3.
g. Non-Refereed Publications Proceedings (10)
1. Asci, S., T. Borisova, J. VanSickle, L. Zotarelli. 2012. Risk and Nitrogen Application
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Decisions in Florida Potato Production. Southern Agricultural Economics Association Meeting. Feb. 4-7, 2012, Birmingham, AL. http://ageconsearch.umn.edu/bitstream/119797/2/AsciBorisovaVansickleZotarelli-2012-SAEA-Risk_and_Nitrogen_Application_Decisions_in_Florida_Potato_Production.pdf
2. Zotarelli L., M.D. Dukes, R. Muñoz-Carpena. 2009. Soil water distribution and nitrate leaching of drip irrigation controlled by soil moisture sensors. Estudios en la Zona no Saturada del Suelo. Vol IX, O. Silva et al. Nov. 18-20. Barcelona, Spain.
3. Zotarelli L., M.D. Dukes. 2009. Physiological and yield response of green bell pepper to soil moisture sensor controlled drip irrigation. In: Proc. of the World Environmental & Water Resources Congress ASCE. May 17-21. Kansas City, MO.
4. Zotarelli L., M.D. Dukes. 2009. Potential and limitation of the use of soil moisture sensor controllers on drip irrigation. In: Proc. of the ASABE Annual International Meeting, Jun. 21-24. Reno, NV.
5. Morgan, K.T., M.D. Dukes, L. Zotarelli. 2008. Use of irrigation technologies for production of horticultural crops in Florida. In: Proceedings of the 2008 Workshop on BMP Research and Education Priorities for Horticultural Crops. Ed. Obreza, Simonne, E. and Boman, B. May 20-21. Apopka, FL.
6. Dukes, M.D., R. Muñoz-Carpena, L. Zotarelli, J. Icerman, J.M.Scholberg. 2007. Soil moisture-based irrigation control to conserve water and nutrients under drip irrigated vegetable production. In: Jornada de Investigación en la Zona no Saturada. Vol. VIII, Nov. 14-16. Cordoba, Spain. CD-ROM.
7. Dukes, M.D., L. Zotarelli, J.M. Scholberg, R. Muñoz-Carpena. 2006. Irrigation and nitrogen best management practices under drip irrigated vegetable production. In: Proc. of the World Environmental & Water Resources Congress, May 21-25. Omaha, NE.
8. Alves, B.J.R., L. Zotarelli, R.M. Boddey, S. Urquiaga. 2002. Soybean benefit to a subsequent wheat crop in a cropping system under zero tillage. In: International Symposium on Nuclear Technique in Integrated Plant Nutrient, Water and Soil Management, 2002, Austria. Nuclear Technique in Integrated Plant Nutrient, Water and Soil Management. Vienna, Austria, IAEA p. 87-93.
9. Alves, B.J.R., L. Zotarelli, R.M. Boddey, S. Urquiaga. 2000. Nitrogen transformation in crop rotations under no tillage. In: Workshop sobre nitrogênio na sustentabilidade de sistemas intensivos de produção agropecuária, 2000, Dourados. Workshop sobre nitrogênio na sustentabilidade de sistemas intensivos de produção agropecuária. Dourados : Embrapa Agropecuária Oeste, Documento 26: p.9-31. (in Portuguese)
10. Zotarelli, L., E. Ferreira, O.C. de Oliveira, R. M. Boddey, S. Urquiaga, B.J.R. Alves. 1997. Limitation of nitrogen for soil organic matter decomposition of a Panicum maximum pasture. In: III Simpósio Nacional de Recuperação de Áreas Degradadas (III SINRAD), 1997. (in Portuguese)
Peer-reviewed Extension Publications in the Electronic Data Information Source (EDIS) (32 total, 6 Spanish translations)
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1. Mwatuwa, R., C.T. Christenseng, L. Zotarelli. 2016. University of Florida Potato Variety
Spotlight: ‘Atlantic’. Horticultural Sciences Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida EDIS Publication HS1278. 3p. http://edis.ifas.ufl.edu/hs1278
2. Mwatuwa, R., C.T. Christenseng, L. Zotarelli. 2016. University of Florida Potato Variety Spotlight: ‘Marcy’. Horticultural Sciences Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida EDIS Publication HS1277. 3p. http://edis.ifas.ufl.edu/hs1277
3. Zotarelli, L., S.A. Sargent, P. Dittmar, M. Makanip. 2016. Potato vine killing or desiccation. Horticultural Sciences Department. Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. EDIS Publication HOS925. 4p. http://edis.ifas.ufl.edu/hs181
4. Zotarelli, L., M.D. Dukes, G.D. Liu, E.H. Simonne, S. Agehara. 2015. Principles and practices of irrigation management for vegetables. Chapter 3. In: Dittmar et al. (Eds.). 2015-2016 Vegetable Production Handbook for Florida, Vance Pub., Lenexa, KS. EDIS Publication CV297. p.11-18. http://edis.ifas.ufl.edu/cv297
5. Zotarelli, L., P.J. Dittmar, P.D. Roberts, S.E. Webb. 2015. Potato production. Chapter 13. In: Dittmar et al. (Eds.). 2015-2016 Vegetable Production Handbook for Florida, Vance Pub., Lenexa, KS. p.132-143. EDIS Publication HS733. p.161-172. http://edis.ifas.ufl.edu/CV131
6. P.J. Dittmar, E.J. McAvoy, M. Ozores-Hampton, R.N. Raid, S.E. Webb, Zotarelli, L. 2015. Onion, leek, and chive production in Florida. Chapter 11. In: Dittmar et al. (Eds.). 2015-2016 Vegetable Production Handbook for Florida, Vance Pub., Lenexa, KS. p.132-143. EDIS Publication HS730. p.133-143. http://edis.ifas.ufl.edu/cv299
7. McAvoy, E.J., L. Zotarelli, M. Ozores-Hampton, P.J. Dittmar, P.D. Roberts, S.E. Webb and S.M. Olson. 2015. Cucurbit production. Chapter 6. In: Dittmar et al. (Eds.). 2015-2016 Vegetable Production Handbook for Florida, Vance Pub., Lenexa, KS. EDIS Publication HS725. p.45-65. http://edis.ifas.ufl.edu/CV123
8. Dittmar, P.J., E.J. McAvoy, M. Ozores-Hampton, R.N. Raid, S.E. Webb, L. Zotarelli, S. Zhang. 2015. Root crop production in Florida. Chapter 14, In: Dittmar, P.J. et al. (Eds.) 2015-2016 Vegetable Production Handbook for Florida, Vance Pub., Lenexa, KS. EDIS Publication HS695. p. 173-188. http://edis.ifas.ufl.edu/cv300
9. Liu, G., K.T. Morgan, Y. Li, L. Zotarelli, J. DeValerio, Q. Wang. 2015. What is the 4R nutrient stewardship? Horticultural Sciences Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. EDIS Publication HS1264. 3p. https://edis.ifas.ufl.edu/hs1264
10. Mbabazi, D. g, K.W. Migliaccio, J. H. Crane, J.H. Debastiani Andreis, C.W. Fraisse, L. Zotarelli and K.T. Morgan. 2015. Smartirrigation avocado app: a step by step guide. Agricultural and Biological Engineering Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. EDIS Publication AE513. 6p. https://edis.ifas.ufl.edu/ae513
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11. Zotarelli, L., P.J. Dittmar, G.E. Vallad, S.E. Webb, S.M. Olson, G., N. S. Dufault. 2015. Cole crop production. Chapter 5. In: Dittmar et al. (Eds.). 2015-2016 Vegetable Production Handbook for Florida, Vance Pub., Lenexa, KS. EDIS Publication HS724. p.31-43. http://edis.ifas.ufl.edu/CV122
12. Barrett, C.E. g, L. Zotarelli, B.S. Taylor, L.G. Paranhosg, M. Warren. 2014. Converting from seepage irrigation to plasticulture for vegetable production: a case study and on-farm demonstration. Horticultural Sciences Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. EDIS Publication HS1246. 6p. http://edis.ifas.ufl.edu/hs1246
13. Rogers J., T. Borisova, L. Zotarelli, K. Grogan, J. Ullman, J. Bertine, and K.T. Morgan. 2014. Costs and benefits of more efficient irrigation systems for florida chipping potato production. Food and Resources Economics Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. EDIS Publication FE95300. 11p. http://edis.ifas.ufl.edu/fe953
14. Rogers J., T. Borisova, J. Ullman, K.T. Morgan, L. Zotarelli and, K. Grogan. 2014. Factors affecting the choice of irrigation systems for Florida tomato production. Food and Resources Economics Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. EDIS Publication FE960. 7p. http://edis.ifas.ufl.edu/fe960
15. Liu, G., L. Zotarelli, Y. Li, D. Dinkins, Q. Wang, M. Ozores-Hampton. 2014. Controlled-release and slow-release fertilizers as nutrient management tools. Horticultural Sciences Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. EDIS Publication HS1255. 7p. http://edisEDIS.ifas.ufl.edu/hs1255
16. Zotarelli, L., D. Gergela, D. Fourman. 2014. University of Florida Potato Variety Trial Program: ‘Elkton’ commercial evaluation. Horticultural Sciences Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida HS1253. 4p. EDIS Publication. http://edis.ifas.ufl.edu/hs1253
17. Zotarelli, L., D. Gergela, K. Haynes, D. Fourman. 2014. University of Florida Potato Variety Spotlight: ‘Elkton’. Horticultural Sciences Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. EDIS Publication HS1237. 4p. http://edis.ifas.ufl.edu/hs1237
18. Byrd, S.A. g, D. L. Rowland, L. Zotarelli. 2014. Growth stages and tuber development of FL1867 in Florida. Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. EDIS Publication SS-AGR-383. 3p. http://edis.ifas.ufl.edu/ag388
19. Santos, M.B., G.E. Vallad, S.M. Olson, G. Liu, E.H. Simonne, M.D. Dukes, L. Zotarelli, J.W. Noling, D. A. Botts, P.J. Dittmar, S.A. Smith. 2013. Vegetable production in Florida. Chapter 1. In: B. Santos and G.E. Vallad (Eds.). 2013-2014 Vegetable Production Handbook for Florida, Vance Pub., Lenexa, KS. p.1-5.
20. Lamberts, M.L., M. Ozores-Hampton, B.M. Santos, L. Zotarelli, E.J. McAvoy, P.J. Dittmar, S. Zhang, S.E. Webb, R.N.Raid, A. J. Whidden, C.A. Snodgrass, M.Paret, S.M. Olson. 2013. Specialty and minor vegetable crop production. Chapter 7. In: B. Santos and
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G.E. Vallad (Eds.). 2013-2014 Vegetable Production Handbook for Florida, Vance Pub., Lenexa, KS. p.76-119.
21. Zotarelli, L., D. Gergela, C.M. Hutchinson, D. Dinkins, E. Redden. 2013. University of Florida Potato Variety Spotlight: ed LaSoda. Horticultural Sciences Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. EDIS Publication HS1078. 4p. https://edis.ifas.ufl.edu/hs323
22. Zotarelli, L., M.D. Dukes, M.G. Paranhos. 2013. Minimum number of soil moisture sensors for monitoring and irrigation purposes. Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. EDIS Publication HS1222. 4p. http://edis.ifas.ufl.edu/hs1222
23. Christensen, C.T.g, L.R. Rensg, J. Reyes-Cabrerag, J.E. Pack, L. Zotarelli, C. H. Hutchinson, W.J. Dahl, D. Gergela, J. White. 2013. Growing potatoes in the Florida home garden. Horticultural Sciences Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. EDIS Publication HS933. 9p. http://edis.ifas.ufl.edu/hs183 Spanish translation: Creciendo Papas en el Jardín de su Hogar en la Florida. Horticultural Sciences Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. EDIS Publication HS1282. 10p. http://edis.ifas.ufl.edu/hs1282
24. Zotarelli, L., L.R. Rensg, C.E. Barrettg, D.J. Cantliffe, M.D. Dukes, M. Clark, S. Lands, S. 2013. Subsurface drip irrigation to improve water distribution of seepage irrigation systems in Florida. Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. EDIS Publication HS1217. 6p. http://edis.ifas.ufl.edu/hs1217
25. Dukes, M.D., L. Zotarelli, G. D. Liu, E. Simonne. 2012. Principle and practices of irrigation management for vegetables. Chapter 3, In: B. Santos and S.M. Olson (Eds.) 2011-2012 Vegetable Production Handbook for Florida, Vance Pub., Lenexa, KS. EDIS Publication AE260. 15p. http://edis.ifas.ufl.edu/CV107
26. Dittmar, P., S. Byrdg, L. Zotarelli, D.L. Rowland, W.M. Stall. 2012. Weed management in potato. Horticultural Sciences Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. EDIS Publication HS194. 4p. http://edis.ifas.ufl.edu/wg035
Spanish Translation: Manejo de malezas en las papas. Horticultural Sciences Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. EDIS Publication HS1213. 4p. http://edis.ifas.ufl.edu/pdffiles/HS/HS121300.pdf
27. Zotarelli, L., C.M. Worthington, C.H. Hutchinson, S. Byrdg, D. Gergela, D. L. Rowland. 2012. Potato physiological disorders – internal heat necrosis. Horticultural Sciences Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. EDIS Publication HS1145. 3p. http://edis.ifas.ufl.edu/hs395 (Major review). Spanish translation: Trastornos fisiológicos de la papa – Necrosis de calor interno. Horticultural Sciences Department, Florida Cooperative Extension Service, Institute of
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Food and Agricultural Sciences, University of Florida. EDIS Publication HS1221. 4p. http://edis.ifas.ufl.edu/hs1221
28. Zotarelli, L., C.W. Fraisse, D. Dourte. 2012. Microirrigation: Adapting to climate variability and change and improving resource-use efficiency. Horticultural Sciences Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. EDIS Publication HS1203. 5p. http://edis.ifas.ufl.edu/pdffiles/HS/HS120300.pdf Spanish translation: Opciones de gestión agronómica para la variabilidad y para el cambio climático: El riego localizado. Horticultural Sciences Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. EDIS Publication HS1212. 5p. http://edis.ifas.ufl.edu/pdffiles/HS/HS121200.pdf
29. Zotarelli, L., S. Byrdg, C.H. Hutchinson, D.L. Rowland and D. Gergela. (2012) Potato physiological disorders - growth cracks. Horticultural Sciences Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. EDIS Publication HS930. 3p. http://edis.ifas.ufl.edu/hs182 Spanish Translation: Trastornos fisiológicos de la papa: Grietas de crecimiento. Horticultural Sciences Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. EDIS Publication HS1211. 3p.http://edis.ifas.ufl.edu/pdffiles/HS/HS121100.pdf
30. Zotarelli, L., C.H. Hutchinson, S. Byrdg, D. Gergela, D.L. Rowland. 2012. Potato physiological disorders - brown center and hollow heart. Horticultural Sciences Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. 2p. EDIS Publication HS945. http://edis.ifas.ufl.edu/hs197 (Major review).
Spanish Translation: Trastornos fisiológicos de la papa - Centro marrón y corazón hueco. Horticultural Sciences Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. EDIS Publication HS1214. 3p. http://edis.ifas.ufl.edu/pdffiles/HS/HS121400.pdf
31. Zotarelli, L., M.D. Dukes, C. Romero, K. Migliacio, K.T. Morgan. 2010. Step by step calculation of the Penman Monteith evapotranspiration (FAO-56 method). Agricultural and Biological Engineering Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. EDIS Publication AE459. 10p. http://edis.ifas.ufl.edu/ae459
32. Zotarelli, L., M.D. Dukes, K.T. Morgan. 2010. Interpretation of soil moisture content to determine soil field capacity and avoid over irrigation in sandy soils using soil moisture devices. Agricultural and Biological Engineering Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. EDIS Publication AE460. 4p. http://edis.ifas.ufl.edu/ae460
Spanish translation: Interpretación del contenido de la humedad del suelo para determinar capacidad de campo y evitar riego excesivo en suelos arenosos utilizando sensores de humedad. Horticultural Sciences Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. EDIS Publication AE496. 4p. http://edis.ifas.ufl.edu/pdffiles/AE/AE49600.pdf
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h. Bibliographies/Catalogs: None
i. Abstracts (99) 1. Silva, A.L.B.R.g, L. Zotarelli, H.T. Hashigutif. 2016. response of potato yield to
irrigation systems and nitrogen management in Flatwood soils. 5th Water Institute Symposium. http://waterinstitute.ufl.edu/symposium2016/abstract_detail.asp?AssignmentID=1221
2. Barrett, C.E.g, L. Zotarelli, L.G. Paranhosg. Converting from seepage to plasticulture for Florida grown cabbage. 5th Water Institute Symposium. http://waterinstitute.ufl.edu/symposium2016/abstract_detail.asp?AssignmentID=1219
3. Torres-Quezada, E.A.g, L. Zotarelli. 2016. Application of kaolin clay during strawberry establishment as a water conservation practice in Florida. 5th Water Institute Symposium. http://waterinstitute.ufl.edu/symposium2016/abstract_detail.asp?AssignmentID=1190
4. Onofre, T.B., C.W. Fraisse, N.A. Peres, L. Zotarelli. 2015. A site-specific strawberry disease monitoring using wireless sensor network. Proc. of the ASA-CSSA-SSSA International Annual Meeting.
5. Björkman, T., M. Ozores-Hampton, L. Zotarelli, M. Hutton, J. Davis, R. Morse, C. Hoepting, P. Smith, W. Morris. 2015. Commercial performance of broccoli varieties selected for a new climate. HortScience. 50(9): S322.
6. Makani, M.N.g, S.A. Sargent, L. Zotarelli, D.J. Huber, C.A. Sims. 2015. ‘Rapid curing’ as means of minimizing postharvest losses in early-season potatoes. HortScience. 50(9): 379.
7. Liao, X., Y. Cui, G. Liu, L. Zotarelli, C. Snodgrass, A. Jones. 2015. converting seepage irrigation into center pivot irrigation to save water for commercial snap bean production in southwest Florida. HortScience. 50(9): 407.
8. Cui, Y., Liao, X., G. Liu, L. Zotarelli, C. Snodgrass, A. Jones. 2015. Overhead irrigation saves water significantly in commercial potato production in florida. HortScience. 50(9): 322.
9. Cui, Y., Liao, X., G. Liu, L. Zotarelli. 2015. Comparison of water usage between seepage and sprinkler irrigation for snap bean production. Meeting of the Fla. State Hort. Soc. V-4.
10. Torres-Quezada, E.A.g, V.M. Whitaker, L. Zotarelli, R.L. Darnell, K.T. Morgan. 2015. Developing technologies for Florida-produced strawberry plug transplants. Meeting of the Fla. State Hort. Soc. V-13.
11. Zambrano-Vaca, C.g, M.A. Olmstead, L. Zotarelli. 2015. Effects of passive ventilation and pine bark volumes on bell pepper growth and yield in high tunnels. Meeting of the Fla. State Hort. Soc. V-13.
12. Zotarelli, L., C.T. Christenseng. 2015. In-row seedpiece spacing effects on yield and quality of chipping potato cultivated in Florida. American Journal of Potato Research. 93: 149.
13. Christensen, C.T g., Zotarelli, L., K.G. Haynes. 2015. Solanum chacoense rooting
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response under differing nitrogen regimens in vitro. American Journal of Potato Research. 93: 127.
14. Zotarelli, L., L.R. Rensg, D.J. Cantliffe. 2014. Strategies for N-fertilizer application for chipping potato to minimize nitrogen losses in Florida. 19th Triennial Conference of the European Association for Potato Research. Brussels, Belgium.
15. Zotarelli, L., L.R. Rensg, K.T. Morgan, D.L. Rowland, A. Alva, G. Liu. 2014. Response to controlled water table level and N-fertilizer rates on yield of potatoes. Proc. of the ASA-CSSA-SSSA International Annual Meeting.
16. Zotarelli, L., L.R. Rensg, A. Alva, K.T. Morgan, D.L. Rowland, G. Liu. 2014. N-fertilizer use efficiency of split-application for potato. Proc. of the ASA-CSSA-SSSA International Annual Meeting.
17. Christensen, C.T.g, L. Zotarelli, K. Haynes. 2014. Solanum chacoense rooting response under differing nitrogen regimens in vitro. American Journal of Potato Research. 92: 181.
18. Christensen, C.T.g, L. Zotarelli, K. Haynes, M. Giurcanu. 2014. Breaking physiological dormancy in tuber of Solanum chacoenses. American Journal of Potato Research. 92: 181.
19. Liao, X., G. Liu, L. Zotarelli, B.M. Santos, C. Snodgrass, A. Jones. 2014. Water savings for commercial potato production in SW Florida: from seepage to center pivot. Meeting of the Fla. State Hort. Soc. V-6.
20. Torres-Quezada, E.A.g, L. Zotarelli, B.M. Santos. 2014. Developing technologies for Florida-produced strawberry plug transplants: time in nursery and tray sizes. Meeting of the Fla. State Hort. Soc. V-17.
21. Barrett, C.E.g, L. Zotarelli, L.G. Paranhosg, P. Dittmar, C.W. Fraisse, J.J.VanSickle. Alternative production system for cabbage production in northeast Florida. Meeting of the Fla. State Hort. Soc. V-14.
22. Paranhos, L.G.g, L. Zotarelli, C.E. Barrettg, G.P. Santos, R.F. Almeida. 2014. Effect of cabbage planting dates and plant population on plant water use, biomass accumulation and yield. HortScience. 49(9): S193.
23. Makani, M.N.g, S.A. Sargent, L. Zotarelli, J. Reyes-Cabrerag. 2014. Yield and postharvest quality of tablestock potato (Solanum tuberosum L.) in response to irrigation method and harvest time. HortScience. 49(9): S202.
24. Barrett, C.E.g, L. Zotarelli, L.G. Paranhosg, P. Dittmar, C.W. Fraisse, J.J.VanSickle. 2014. Nitrogen uptake, use efficiency, and yield in plasticulture grown cabbage. HortScience. 49(9): S193.
25. Silva, A.L.B.R.g, L. Zotarelli, P.S.L. Freitas, P.V. Demeneck-Viera. 2014. Simulation of optimum sowing dates for dry-bean cultivated in Central Region of Brazil. HortScience. 49(9): S184.
26. Treadwell, D.D., D. Sanon g, L. Zotarelli. 2014. Evaluation of summer cover crops sorghum (Sudangrass sorghum Biocolor L. (Moench) x Sorghum sudanense ) and Pigeon pea (Cajanus cajan L.) management of fall cabbage (Brassica oleracea L. ‘Capitata'). HortScience. 49(9): S210.
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27. Reyes-Cabrera, J.g, L. Zotarelli, M.D. Dukes, S.A. Sargent, D.L. Rowland. 2014. Drip irrigation as alternative strategy to increase water savings in Florida potato production. American Journal of Potato Research. 91: 63.
28. Gergela, D., L. Zotarelli, K. Haynes, G. Porter. 2014. Effect of in-row seed spacing on yield, internal and external quality and specific gravity of Atlantic, Harley Blackwell and Elkton grown in Florida. American Journal of Potato Research. 91: 48.
29. Olmstead, M.A., L. Zotarelli, M. Ross. 2013. Impact of nitrogen on vegetative growth of mature peach trees in a subtropical climate. HortScience. 48(9): S214.
30. Zotarelli, L., G.B. Buckp, C.E. Barrettg, L.R. Rensg. 2013. Effect of excessive applications of calcium sulphate in soil pH, electrical conductivity, sodium and micronutrient availability. Proc. of the ASA-CSSA-SSSA International Annual Meeting.
31. Zotarelli, L., C.E. Barrettg, G.B. Buck p, S.C. Mellop. 2013. Cauliflower yield, biomass accumulation as affected by nitrogen rates and irrigation scheduling. HortScience. 48(9): S175.
32. Salame-Donoso, T., G. Liu, B.M. Santos, L. Zotarelli. 2013. Effects of seepage and center-pivot irrigation systems on potato production in southwest Florida. Proc. of the ASA-CSSA-SSSA International Annual Meeting.
33. Christensen, C.T.g, L. Zotarelli, K. Haynes. 2013. Breaking physiological dormancy in tubers of Solanum Chacoense. Proc. of the ASA-CSSA-SSSA International Annual Meeting.
34. Paranhos, L.G.g, L. Zotarelli, C.E. Barrettg, G.B. Buckp, M.C. Giurcanu. 2013. Biomass accumulation of cabbage cultivated under plasticulture in high plant population. Proc. of the ASA-CSSA-SSSA International Annual Meeting.
35. Barrett, C.E.g, L. Zotarelli, L.G. Paranhosg, M.C. Giurcanu. 2013. Optimizing the nitrogen application rate for plasticulture grown cabbage in Florida. Proc. of the ASA-CSSA-SSSA International Annual Meeting.
36. Rens, L.R.g, L. Zotarelli, D.J. Cantliffe, D. Gergela, D. 2013. Response of N-fertilizer rates and timing of application on yield of chipping potatoes in Florida. Proc. of the ASA-CSSA-SSSA International Annual Meeting.
37. Rens, L.R.g, L. Zotarelli, K.T. Morgan, A. Alva, D.L. Rowland, G. Liu. 2013. Response of N-fertilizer rates and water table irrigation management on yield of chipping potatoes in Florida. Proc. of the ASA-CSSA-SSSA International Annual Meeting.
38. Barrett, C.E.g, L. Zotarelli. 2013. Plasticulture grown cabbage: effects plant population, planting date, and climate on crop yield. HortScience. 48(9): S223.
39. Asci, S., T. Borisova, J. VanSickle, L. Zotarelli. 2012. Costs, returns, and nitrogen application decisions in Florida potato production. 3rd Water Institute Symposium. p.8. http://waterinstitute.ufl.edu/symposium2012/downloads/BookOfAbstracts_2012.pdf
40. Cammarano, D., A. Ashok, S. Asseng, L. Zotarelli, K.T. Morgan, J.O. Olesen, J. Wolf, B. Basso. 2012. Sensitivity of substor-potato model for the simulation of potato in north America. Proc. of the ASA-CSSA-SSSA International Annual Meeting. 343-3. http://scisoc.confex.com/scisoc/2012am/webprogram/Paper73883.html
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41. Byrd, S.g, D.L. Rowland, J. Bennett, L. Zotarelli, D. Wright, A. Alva. 2012. Irrigation management of Florida Potato. Proc. of the ASA-CSSA-SSSA International Annual Meeting. 242-7. http://scisoc.confex.com/scisoc/2012am/webprogram/Paper72855.html
42. Byrd, S.g, D.L. Rowland, J. Bennett, L. Zotarelli, D. Wright. 2012. Optimizing irrigation of Florida potato. 3rd Water Institute Symposium. p.20. http://waterinstitute.ufl.edu/symposium2012/downloads/BookOfAbstracts_2012.pdf
43. Reyes-Cabrera, J.g, L. Zotarelli, M.D. Dukes, S.A. Sargent, D.L. Rowland. 2012. Drip irrigation as an alternative strategy to increase water saving for potato production in northeast Florida. 3rd Water Institute Symposium. p.100. http://waterinstitute.ufl.edu/symposium2012/downloads/BookOfAbstracts_2012.pdf
44. Zotarelli, L., L.R. Rensg, D.J. Cantliffe, D. Gergela. 2012. Yield response of chipping potato ‘FL1867’ to rate and timing of nitrogen-fertilizer application in Florida. American Journal of Potato Research. 89: 42.
45. Gergela, D., L. Zotarelli, K. Haynes, G. Porter. 2012. B1992-106, a new potential chipping potato variety for Florida. American Journal of Potato Research. 89: 45.
46. Reyes-Cabrera, J.g, L. Zotarelli, M.D. Dukes, M. Makanig, S.A. Sargent, D.L. Rowland. 2012. Use of drip irrigation for table-stock and chipping potato production in Florida sandy soils. HortScience. 47(9): S141.
47. Rens, L.R.g, L. Zotarelli, M.G. Paranhos, J. Reyes-Cabrerag, G.B. Buckp, C.E. Barrettg. 2012. Soil moisture mapping of potato farms utilizing four irrigation practices: seepage, subsurface drip, tile irrigation/drainage, and surface drip. HortScience. 47(9): S385.
48. Rens, L.R.g, L. Zotarelli, D.J. Cantliffe, D. Gergela, D. 2012. Development of nitrogen-fertilization best management practices (BMPs) for potatoes in Florida. HortScience. 47(9): S139.
49. Barrett, C.E.g, L. Zotarelli, M.G. Paranhos, G.B. Buckp, M.D. Dukes, D. Gergela. 2012. Cabbage yield as function of plant population cultivated on plasticulture. HortScience. 47(9): S172.
50. Makani, M.N.g, S.A. Sargent, J. Reyes-Cabrerag, L. Zotarelli. 2012. The effect of irrigation method, harvest time, and storage on mechanical injury and tuber quality of table stock potato (Solanum tuberosum L.). HortScience. 47(9): S325.
51. Zotarelli, L., M.D. Dukes. 2011. Physiological response and yield of green bell pepper under different irrigation strategies on sandy soils. HortScience. 46(9): S145.
52. Barreto, T. P., L. Zotarelli, M.D. Dukes. 2010. Physiological and yield response of bell pepper to automated soil moisture sensor controlled drip irrigation. 2nd Water Institute Symposium. p.13. http://waterinstitute.ufl.edu/symposium2010/downloads/2010_Water_Institute_Symposium_Book_of_Abstracts.pdf
53. Zotarelli, L., M.D. Dukes, J.M.S. Scholberg, R. Munõz-Carpena, J. Icerman. 2008. Soil moisture, soil electrical conductivity and tomato root distribution of automated drip irrigation system controlled by soil moisture sensors. Proc. of the ASA-CSSA-SSSA International Annual Meeting. 757-2.
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54. Zotarelli, L., J.M.S. Scholberg, L. Avila, M.D. Dukes. 2006. Effect of residence time on nitrogen uptake dynamics of sweet corn. Proc. of the ASA-CSSA-SSSA International Annual Meeting. CD-ROM.
55. Avila, L., L. Zotarelli, J.M. Scholberg, C. Cherr. Nitrogen cycling and N uptake dynamics in cover crop based sweet corn production system. 2006. Proc. of the ASA-CSSA-SSSA International Annual Meeting.
56. Scholberg, J.M., K.T. Morgan, L. Zotarelli, E.H. Simonne, M.D. Dukes. 2006. Integrating root interception capacity and crop N demand into BMPs for vegetable crops. HortScience. 41(4): 987.
57. Zotarelli L., J.M. Scholberg, M.D. Dukes, H. Snyder, R. Munoz-Carpena. 2006. Interaction between water and nitrogen application on yields and water use efficiency of tomato and pepper in sandy soil. HortScience. 41(4): 981.
58. Zotarelli L., J.M. Scholberg, M.D. Dukes, H. Snyder, R. Munoz-Carpena. 2006. Nitrate leaching, yields and water use efficiency of zucchini squash under different nitrogen rates, irrigation methods in a sandy soil. HortScience. 41(4): 988.
59. Avila, L., J.M. Scholberg, L. Zotarelli, R.M. McSorley. 2006. Can cover crop based systems reduce vegetable crop fertilizer requirements in the southeastern U.S.A. HortScience. 41(4): 981.
60. Zotarelli L., J.M. Scholberg, M.D. Dukes, R. Munoz-Carpena. 2006. Nitrogen and irrigation management to improve water use efficiency and reduce nitrate leaching of pepper and tomato crops in Florida. 18th World Congress of Soil Science. IUSS 18: 136-14.
61. Zotarelli L., E. Torres, R.M. Boddey, S. Urquiaga, B.J.R. Alves. 2006. Influence of no tillage and conventional tillage and crop rotation on soil carbon and nitrogen accumulation and soil aggregation in a Rhodic Ferrasol. 18th World Congress of Soil Science. IUSS 136-14. 18: 558.
62. Piccinin, J.L., E. Torre, L. Zotarelli, O.F. Saraiva, C.R. Espindola. 2006. Crop yield and physical attibutes of a Clayey Oxisol under different management systems and crop rotation. 18th World Congress of Soil Science. IUSS 155-101. 18: 558.
63. Reno, K.D., J.M.S. Scholberg, L. Zotarelli, S. Tubbs. 2005. Potential use of resin traps for assessing nitrogen leaching in vegetable production systems. In: Proc. of the ASA-CSSA-SSSA International Annual Meeting.
64. Scholberg, J.M.S., L. Zotarelli, K. Morgan, C. Cherr, M.D. Dukes. 2005. Integrating N uptake dynamics of vegetable crops into production guidelines for more efficient N-fertilizer use. Proc. of the ASA-CSSA-SSSA International Annual Meeting.
65. Zotarelli L., J.M.S. Scholberg, M.D. Dukes, R. Munoz-Carpena. 2005. Quantifying nitrate leaching dynamics in vegetable production systems on sandy soils. Proc. of the ASA-CSSA-SSSA International Annual Meeting.
66. Zotarelli L., S. Tubbs, J.M.S. Scholberg. 2005. Effect of residence time on nitrogen uptake dynamics of pepper. Proc. of the ASA-CSSA-SSSA International Annual Meeting.
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67. Torres, E., J.C. Franchini, O.F. Saraiva, G.G. Brown, J.L. Piccinin, E.G. Cardoso, L. Zotarelli. 2004. Soil management systems and crop rotation for soybean in a Haplorthox soil in Brazil. 7th World Soybean Research Conference. p.190. (in Portuguese)
68. Saraiva, O. F., E. Torres, J.C. Franchini, G.G. Brown, J.L. Piccinin, E.G. Cardoso, L. Zotarelli. 2004. Performance of soybean and wheat crops in a Haplorthox under different soil tillage systems for 22 years, in Brazil. 7th World Soybean Research Conference. p.191. (in Portuguese)
69. Franchini, J.C., R. Souza, L. Zotarelli, B.J.R. Alves, E. Torres, M. Hungria. 2003. Losses of NH3 and CO2 during lupin residue decomposition used as green manure under no tillage. 26th Congresso Brasileiro de Ciência do Solo. CD-ROM. (in Portuguese)
70. Saraiva, O. F., E. Torres, J.C. Franchini, G.G. Brown, J.L. Piccinin, E.G. Cardoso, L. Zotarelli. 2003. Soybean and wheat response to soil management in long term experiments. 26th Reunião de Pesquisa de Soja da Região Central do Brasil. p.267. (in Portuguese)
71. Torres, E., J.C. Franchini, O.F. Saraiva, G.G. Brown, J.L. Piccinin, E.G. Cardoso, L. Zotarelli. 2003. Soil preparation and crop rotation systems for soybean in Red Latosol. 26th Reunião de Pesquisa da Soja da Região Central do Brasil. p.252. (in Portuguese)
72. Saraiva, O.F., E. Torres, J.C. Franchini, G.G. Brown, J.L. Piccinin, E.G. Cardoso, L. Zotarelli. 2003. Performance of soybean and wheat crops in Red Latosol under different soil preparation systems. 26th Reunião de Pesquisa da Soja da Região Central do Brasil. p.255. (in Portuguese)
73. Medeiros, A.F.A., C.H.M. Coelho, L. Zotarelli, J.C. Heckler, F.M. Fernandes, S. Urquiaga, R.M. Boddey, B.J.R. Alves. 2003. Winter soil nitrogen availability under no tillage with different crop rotation. 26th Congresso Brasileiro de Ciência do Solo. CD ROM. (in Portuguese)
74. Zotarelli, L., B.J.R. Alves, S. Urquiaga, E. Torres, K. Paustian, R.M. Boddey, J. Six. 2003. Effect of soil preparation on soil aggregates and organic matter content. 26th Congresso Brasileiro de Ciência do Solo. CD ROM. (in Portuguese)
75. Torres, E., O.F. Saraiva, J.C. Franchini, E.G. Cardoso, L. Zotarelli. 2002. Soil compaction under no tillage systems and its effect on yields of different soybean cultivars. 2nd Congresso Brasileiro de Soja - Embrapa Soja. p.129. (in Portuguese)
76. Zotarelli, L., E. Torres, R.M. Boddey, S. Urquiaga, B.J.R. Alves. 2002. Recovery of nitrogen derived from fertilizer by corn cultivated in no tillage system. 25th Reunião Brasileira de Fertilidade do Solo e Nutrição de Plantas, IX Reunião Brasileira sobre Micorrizas, 7th Simpósio Brasileiro de Microbiologia do Solo, 4th Reunião Brasileira de Biologia do Solo. CD-ROM. (in Portuguese)
77. Zotarelli, L., E. Torres, R.M. Boddey, S. Urquiaga, B.J.R. Alves. 2002. Role of legumes in the N economy of cereal production in crop rotations under conventional and no-tillage. 17th World Congress of Soil Science. CD-ROM.
78. Torres, E., O.F. Saraiva, J.C. Franchini, E.G. Cardoso, L. Zotarelli, L. 2002. Soil physical properties and soybean yield affected by soil compaction. 24th Reunião de Pesquisa de Soja da Região Central do Brasil. Documentos. v.24. (in Portuguese)
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79. Urquiaga, S., C.P.J. Sisti, L. Zotarelli, B.J.R. Alves, R.M. Boddey. 2002. Importance of biological nitrogen fixation to the sustainability of agricultural systems and environmental preservation. 21st RELAR, Cocoyoc. (in Spanish)
80. Torres, E., S. Urquiaga, R.M. Boddey, L. Zotarelli, B.J.R. Alves. 2001. Contribution of the use of lupin as green manure in crop rotation to corn nutrition under no tillage and conventional tillage. 24th Congresso Brasileiro de Ciência do Solo. p.255. (in Portuguese)
81. Macedo, R.A.T., L. Zotarelli, J.M. Costa, E. Torres, S. Urquiaga, R.M. Boddey, B.J.R. Alves. 2001. Influence of soil preparation on soybean biological nitrogen fixation. 24th Congresso Brasileiro de Ciência do Solo. p.91. (in Portuguese)
82. Zotarelli, L., J.L. Piccinin, V. Pozzi, E. Torres, S. Urquiaga, R.M. Boddey, B.J.R. Alves. 2001. Evaluation of corn roots through cultural profile technique. 23rd Congresso Brasileiro de Ciência do Solo. p.19. (in Portuguese)
83. Sisti, C.P.J., L. Zotarelli, J. Jacob Neto, S. Urquiaga, R.M. Boddey, B.J.R. Alves. 2000. Evaluation of 15N root labelling using the leaf labelling technique. FertBio 2000. CD-ROM. (in Portuguese)
84. Alves, B.J.R., C.P.J. Sisti, L. Zotarelli, S. Urquiaga, R.M. Boddey. 2000. Evaluation of soil carbon and nitrogen concentration of a nitossolo under native vegetation, no tillage and conventional tillage. Reunião brasileira de manejo e conservação do solo e da água. p.809-810. (in Portuguese)
85. Alves, B.J.R., L. Zotarelli, R.M. Boddey, S. Urquiaga. 2000. Soybean benefit to a subsequent wheat crop in a cropping system under zero tillage. International Symposium on nuclear technique in integrated plant nutrient, water and soil management. p.25-26.
86. Alves, B.J.R., L. Zotarelli, W.A.R.L. Cabezas, E. Torres, M. Hungria, S. Urquiaga, R. M. Boddey. 1999. Benefit of legume fixed N in crop rotations under zero tillage. 12th International Congress on Nitrogen Fixation. p.36.
87. Zotarelli, L., E. Torres, M. Hungria, S. Urquiaga, R.M. Boddey, B.J.R. Alves. 1999. Effect of soybean residues on wheat yields and nitrogen balance of no tillage systems. Congresso Brasileiro de Soja - Resumos. p.345. (in Portuguese)
88. Alves, B.J.R., L. Zotarelli, E. Ferreira, O.C. Oliveira, R.M. Boddey, S. Urquiaga. 1998. Decomposition and release of N, P and K of litter from grass and legume forage species either alone or mixed. In: Congrès Mondial de Scence du Sol. p.280.
89. Zotarelli, L., A.S. Resende, E. Torres, S. Urquiaga, R.M. Boddey, M. Hungria, B.J.R. Alves. 1998. The role of soybean in soil N reserves under no tillage systems in the Londrina Region. 23rd Reunião Brasileira de Fertilidade do Solo e Nutrição de Plantas. p.743. (in Portuguese)
90. Oliveira Jr, R.S., L. Zotarelli, J. Constantim. 1996. Evaluation of selectivity of clethodim on soybean and its efficiency on Sorghum halepense L. Pers. weed control. Encontro de Iniciação Científica CNPq/UEPG/UEL/UEM/UNIOESTE. 5: 446. (in Portuguese)
91. Oliveira Jr, R.S., L. Zotarelli, J. Constantim. 1996. Selectivity and efficiency of clethodim on initial phase of cassava growth. Encontro de Iniciação Científica CNPq/UEPG/UEL/UEM/UNIOESTE. 5: 448. (in Portuguese)
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92. Zotarelli, L., A.C.S. Costa. 1996. Evaluation of soil degradation under three different management (pasture, crop system and forest) through microbial biomass and dry aggregate separation techniques. 17th Congresso Brasileiro de Ciência do Solo. CD-ROM. (in Portuguese)
93. Oliveira Jr, R.S., L. Zotarelli, R.T. Hirai. 1995. New formulation of clethodim to control gramineae weeds on soybean crop. Congresso Brasileiro da Ciência das Plantas Daninhas. 20: 95. (in Portuguese)
94. Oliveira Jr, R.S., L. Zotarelli, R.T. Hirai. 1995. Selectivity and efficiency of clethodim on initial growth phase of cassava. Congresso Brasileiro da Ciência das Plantas Daninhas, 1995. 20: 166. (in Portuguese)
95. Oliveira Jr, R.S., L. Zotarelli, D.A. Fornarolli, A.N. Chehata. 1995. Evaluation of agronomic efficiency of herbicides on corn crop. Encontro de Iniciação Científica CNPq/UEPG/UEL/UEM/UNIOESTE. 4: 449. (in Portuguese)
96. Oliveira Jr, R.S., L. Zotarelli, D.A. Fornarolli, A.N. Chehata. 1995. Efficiency of pre and post emergent herbicides on soybean crop. Encontro de Iniciação Científica CNPq/UEPG/UEL/UEM/UNIOESTE. 4: 453. (in Portuguese)
97. Oliveira Jr, R.S., L. Zotarelli, D.A. Fornarolli, A.N. Chehata. 1995. Weed control on coffee crop. Encontro de Iniciação Científica CNPq/UEPG/UEL/UEM/UNIOESTE. 4: 455. (in Portuguese)
98. Oliveira Jr, R.S., L. Zotarelli, J.A Farina, C. H. Borghi. 1994. Selectivity of herbicides applied to canola crop. Encontro de Iniciação Científica CNPq/UEPG/UEL/UEM/ UNIOESTE. 3: 148. (in Portuguese)
99. Oliveira Jr, R.S., L. Zotarelli, J.A Farina, C. H. Borghi. 1994. Canola tolerance to herbicides applied to soil. In: Encontro de Iniciação Científica CNPq/UEPG/UEL/UEM/ UNIOESTE. 3: 144. (in Portuguese)
j. Reviews (0):
None
k. Miscellaneous Publications (1) 1. Zotarelli, L. 2012. Citrus fairly efficient with irrigation, but can do better. Southcast
AgNet. http://southeastagnet.com/2012/05/29/citrus-fairly-efficient-with-irrigation-but-can-do-better/
Newsletters (12) 1. Fu, X., G. Liu, L. Zotarelli, S. Sargent, C. Snodgrass, A. Jones. 2016. Fertigation for
potato production in Florida. Vegeterian Newsletter, 614. http://hos.ufl.edu/newsletters/vegetarian/issue-no-614
2. Cui, Y., G. Liu, L. Zotarelli, S. Sargent, D. 2015. Sustainable phosphorus and gypsum management for potato production in northeast Florida. Vegetarian Newsletter, 603. http://hos.ufl.edu/newsletters/vegetarian/issue-no-603
3. Barrett, C.E. g, L. Zotarelli, L.G. Paranhosg, M. Warren. 2014. Plasticulture cabbage
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update. Tri-County Commercial Ag Newsletter, 4(2): 8-9. 4. Salame, T., G. Liu, B.M. Santos, L. Zotarelli. 2013. Seepage versus central-pivot
irrigation for potato production in Manatee County. Vegetarian Newsletter, 584. http://hos.ufl.edu/newsletters/vegetarian/issue-no-584
5. Zotarelli, L., T. Borisova, and S. Lands. 2012. Survey of Potato Production Practices. Tri-County Commercial Ag Newsletter, 2(4): 3. http://hastings.ifas.ufl.edu/newsletter_archives/july_12_newsletter.pdf
6. Zotarelli, L., D. Gergela, K. Haynes, G. Porter. 2012. B1992-106, a new potential chipping potato variety for Florida. Vegetarian Newsletter, 569. http://www.hos.ufl.edu/newsletters/vegetarian/issue-no-570
7. Zotarelli, L. 2011. Cabbage population and plasticulture trial. Tri-County Commercial Ag Newletter 1(12): 4. http://hastings.ifas.ufl.edu/newsletter_archives/may_11_newsletter.pdf
8. Zotarelli, L., M. D. Dukes. 2011. Green bell pepper yield and water use efficiency under different irrigation scheduling. Vegetarian Newsletter, 566. http://hos.ufl.edu/newsletters/vegetarian/issue-no-566
9. Zotarelli, L., M. D. Dukes. 2009. Irrigation strategies to minimize nitrate leaching for drip irrigated tomatoes. The Vegetarian Newsletter, 543. http://www.hos.ufl.edu/vegetarian/09/Mar/Irr%20Strategies%20Minimize%20N%20Leaching%20Drip%20Irrigated%20Tomatoes.html)
10. Zotarelli, L., M.D. Dukes. 2008. Use of soil moisture sensing and irrigation scheduling for pepper production”. The Vegetarian Newsletter, 538. http://www.hos.ufl.edu/vegetarian/08/Oct%2008/Use%20of%20Soil%20Moisture%20Sensing%20and%20Irrigation%20Scheduling%20for%20Pepper%20Production.html
11. Zotarelli, L., M.D. Dukes. 2008. Improving water use efficiency for tomato production using soil moisture sensing and irrigation scheduling. The Vegetarian Newsletter, 531. http://www.hos.ufl.edu/vegetarian/08/March%2008/Zotarelli%20&%20Dukes%20-%20March%202008%20Vegetarian%20Newsletter.pdf
12. Zotarelli, L., J.M. Scholberg, M.D. Dukes and R. Muñoz-Carpena. 2005. Nitrogen and irrigation management: is it possible to improve water use efficiency and reduce nitrate leaching of vegetables crops in Florida? 2005 Nutrient Management Education Core Group Newsletter. Soil and Water Science Department, University of Florida, IFAS Extension, Gainesville. FL.
Other extension publications (15)
1. Christensen, C.T.g, L. Zotarelli. 2016. Fine tuning production practices: in-row seed spacing. Spudman. 54(4): 26-27. http://digital.spudman.com/i/659974-april-2016
2. Zotarelli, L., C.E. Barrett, L.G. Paranhos. 2015.Plasticulture system offers alternative for cabbage producers. ASHS News & Press: Press Release. https://www.ashs.org/news/265703/Plasticulture-system-offers-alternative-for-cabbage-producers.htm
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3. Ozores-Hampton, M., L.Zotarelli, G. McAvoy. 2014. Broccoli offers winter production opportunities for Florida. The Grower. http://www.thegrower.com/news/Broccoli-offers-winter-production-opportunities-for-Florida-256178401.html
4. Rens, L.R.g, L. Zotarelli, D.J. Cantliffe, D.J. 2014. Best Management Practices for Nitrogen fertilization on potatoes. Better Crops. 98(1): 10-12.
5. Miggliaccio, K.W., C.W. Fraisse, K.T., G. Vellidis, D.L. Rowland, L. Zotarelli, J. Andreis. 2013. Three free smart apps: citrus, strawberry, and turf. Pipeline. Florida Irrigation Association. 12(4): 10-12.
6. Buck, G.B.p, L. Zotarelli, W. Bowen, S.A. Sargent, C.C. Ecole, C. Tsimpho, H. Maia, F. V. Resende, H.R. Silva, J.L.B. Leite, R. Souza, M.C. Vidal, J.R. Couto. 2013. Soil management for vegetable production in Mozambique. Instituto de Investigação Agrária de Moçambique. 6: 40p. (in Portuguese)
7. Alves, B.J.R., L. Zotarelli, E.S. Araújo, F.M. Fernandes, J.C. Hekcler, A.F.A. Medeiros, R.M. Boddey, S. Urquiaga. 2005. Nitrogen balance in crop rotation under no tillage in Dourados, MS. Embrapa Agrobiologia,Research and Development Bulletin. 7: 21p. (Serial Technical Publication of Embrapa, in Portuguese)
8. Alves, B.J.R., R.A.T. Macedo, L. Zotarelli, R.M. Boddey, S. Urquiaga. 2003. Effect of soil management on soybean biological nitrogen fixation through ureide technique. Embrapa Agrobiologia, Research and Development Bulletin, 03: 16p. (Serial Technical Publication of Embrapa, in Portuguese)
9. Zotarelli, L., E.G. Cardoso, J.L. Piccinin, S. Urquiaga, R.M. Boddey, E. Torres, B.J.R. Alves. 2002. Evaluation of nitrogen nutrition in corn using Minolta SPAD-502. Technical Communication, 55. Embrapa Agrobiologia. (Serial Technical Publication of Embrapa, in Portuguese)
10. Alves, B.J.R., L. Zotarelli, J.C. Heckler, F.M. Fernandes, S. Urquiaga. 2002. Fractionation of nitrogen fertilizer for cotton and corn under no tillage in Dourados-MS. Technical Communication, 56. Embrapa Agrobiologia. (Serial Technical Publication of Embrapa, in Portuguese)
11. Alves, B.J.R., L. Zotarelli, R. M. Boddey, S. Urquiaga. 2001. Does soybean need complementary nitrogen fertilization? Revista A Lavoura, Dez., 2001 (Magazine Article, in Portuguese)
12. Zotarelli, L., E. Torres, S. Urquiaga, R. M. Boddey, B.J.R. Alves. 1999. Effect of soybean/wheat crop rotation in the nitrogen balance in no tillage and conventional tillage. Embrapa Agrobiologia, Technical Communication, 29: 7p. (Serial Technical Publication of Embrapa, in Portuguese)
13. Ferreira, E., A.S. Resende, F. Balieiro, L. Zotarelli, L.A. Silva, M.A. Alfaro, B.J.R. Alves, S. Urquiaga. 1998. Evaluation of different access tubes to measurement of soil moisture with neutron probe. Embrapa Agrobiologia, Document Series, 59: 8p. (Serial Technical Publication of Embrapa, in Portuguese)
14. Zotarelli, L., E. Torres, S. Urquiaga, R. M. Boddey, B.J.R. Alves. 1998. Contribution of soybean residues to the nutrition of wheat planted under no tillage system in Northern Parana State. Embrapa Agrobiologia, Bulletin, 13: 4p. (Serial Technical Publication of
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Embrapa, in Portuguese) 15. Oliveira Jr., R.S. and L. Zotarelli, 1995. Use of paraquat as desiccant for soybean crop.
Maringá: Eduem, 1995. 1: 12p. (in Portuguese) Field Day and Workshop Handouts (17)
1. Zotarelli, L. and A.B.R.Silvag. 2016. N–Fertilizer rates and application timing on tile, subsurface drip, seepage and overhead irrigation – preliminary research findings. Twilight Potato School. 2p.
2. Zotarelli, L. and C.T. Christenseng. 2015. In-row seedpiece spacing effects on yield and quality of chipping potato. Twilight Potato School. 6p.
3. Zotarelli, L., C.T. Christenseng, N. Dufault, P. Solano. 2015. Florida potato variety program: from chipping to exotic potatoes. Twilight Potato School. 3p.
4. Barrett, C.B.g, L. Zotarelli, L.G. Paranhosg. 2014. Fall Vegetable School. Handouts. 75p.
5. Liu, G., L. Zotarelli, D.L. Rowland, M. Clark, J. Ullman. 2013. Strategies to minimize salinity problems and optimizing production. IST (#30688). Handouts. 40p.
6. Buck, G.B.p, L. Zotarelli, W. Bowen, S.A. Sargent, C.C. Ecole, C. Tsimpho, H. Maia, F. V. Resende, H.R. Silva, J.L.B. Leite, R. Souza, M.C. Vidal, J.R. Couto. 2013. Soil management for vegetable production in Mozambique. Handouts for USAID Workshop. (in Portuguese).
7. Zotarelli, L., L.R. Rensg, D.J. Cantliffe, D. Gergela. 2012. N-fertilizer BMP Trial Results - TCAA County Extension. 12p.
8. Zotarelli, L., B.S. Taylor, S.A. Sargent, D.J. Cantliffe. 2012. Tri-County Agricultural Area BMP Tour – Visit of the Commissioner of Agriculture, Adam Putnam. 15p.
9. Zotarelli, L. 2012. Update on alternative irrigation practices in the TCAA on potatoes, effects on yield and fertilization. Spring Potato School. p.2.
10. Zotarelli, L., C.E. Barrettg, D. Dinkins, M. Warren, S. Lands, B.S. Taylor, D. Gergela, J. Breman. Cabbage Population & Plasticulture Trial – preliminary results from year 1. Sustainable Cabbage/Crucifer Production Field Day. 10p.
11. Zotarelli, L. 2012. Microirrigation: Adapting to climate variability and change and improving resource-use efficiency. 2p.
12. Zotarelli, L., S. Lands. 2011. USDA-NRCS Web Soil Survey - Access and use soil maps of “your farm” on planning and management of regular farm operations. Fall Potato School, St. Johns Co. Extension. 14p.
13. Zotarelli, L., D. Dinkins, M. Warren, S. Lands, B.S. Taylor, D. Gergela, J. Breman. 2011. Cabbage Population & Plasticulture Trial – preliminary results from year 1. Sustainable Cabbage/Crucifer Production Field Day. 3p.
14. Zotarelli, L., D.J. Cantliffe, D. Gergela. 2011. N-fertilizer BMP Trial Results. Potato Grower Meeting. 110p.
15. Zotarelli, L. 2011. Sustainable Potato Production. Certified Crop Advisor. University of
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Florida. 12p. 16. Zotarelli, L., D.J. Cantliffe, D. Gergela. 2010. N-fertilizer BMP Trial Results. Potato
Grower Meeting. 39p. 17. Zotarelli, L. 2010. Irrigation Management: Seepage and Drip Irrigation. Twilight Potato
School. 1p.
17. LECTURES, SPEECHES OR POSTERS PRESENTED AT PROFESSIONAL CONFERENCES/MEETINGS
a. International Presentations
Invited (3)
1. Zotarelli, L. 2014. Best management practices of irrigation and N-fertilizer for potatoes in Florida. International Center of Potatoes, Lima, Peru.
2. Zotarelli, L. 2011. Best management practices for irrigation and fertilization of vegetable production systems in Florida – 51st Brazilian Congress of Horticulture. Viçosa, Brazil.
3. Zotarelli, L. 2011. Florida best management practices. Embrapa Hortaliças Research Center. Brasilia, Brazil.
Contributed (1) 1. Zotarelli, L., L.R. Rensg, D.J. Cantliffe. 2014. Strategies for N-fertilizer application for
chipping potato to minimize nitrogen losses in Florida. 19th Triennial Conference of the European Association for Potato Research. Brussels, Belgium.
b. National Presentations
Invited (2)
1. Zotarelli, L. 2015. Precision agriculture in the southeast. InfoAg Meeting. St. Louis, MO.
2. Zotarelli, L. 2015. Florida Potato: irrigation and nutrient management. Northeast 1231 Eastern Potato Variety Development Project – Potato Expo. Orlando, FL.
Contributed (10)
1. Zotarelli, L., C.T. Christenseng. 2015. In-row seedpiece spacing effects on yield and quality of chipping potato cultivated in Florida. 96th Potato Association of America Annual Meeting. Portland, ME.
2. Zotarelli, L., L.R. Rensg, K.T. Morgan, D. L. Rowland, A. Alva, G. Liu. 2014. Response to controlled water table level and N-fertilizer rates on yield of potatoes. ASA-CSSA-SSSA International Annual Meeting. Long Beach, CA.
3. Zotarelli, L., L.R. Rensg, A. Alva, K.T. Morgan, D. L. Rowland, G. Liu. 2014. N-fertilizer use efficiency of split-application for potato. ASA-CSSA-SSSA International Annual Meeting. Long Beach, CA.
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4. Zotarelli, L. 2014. Irrigation systems for vegetable production in Florida: the good, the bad, the ugly. Workshop - Irrigation systems and current technology available for use in vegetable crop production. American Society of Horticultural Sciences meeting, Orlando, FL.
5. Zotarelli, L. 2014. Irrigation scheduling and the use of soil moisture sensor on vegetable crops. Workshop - Irrigation systems and current technology available for use in vegetable crop production. American Society of Horticultural Sciences meeting, Orlando, FL.
6. Zotarelli, L., G.B. Buckp, C.E. Barrettg, L.R. Rensg. 2013. Effect of excessive applications of calcium sulphate in soil pH, electrical conductivity, sodium and micronutrient availability. American Society of Agronomy International Annual meeting, Tampa, FL.
7. Zotarelli, L., C.E. Barrettg, G.B. Buckp, S.C. Mellop. 2013. Cauliflower yield, biomass accumulation as affected by nitrogen rates and irrigation scheduling. American Society of Horticultural Sciences meeting, Palm Desert, CA.
8. Zotarelli, L., L.R. Rensg, D.J. Cantliffe, D. Gergela. 2012. Yield response of chipping potato ‘FL1867’ to rate and timing of nitrogen-fertilizer application in Florida. 96th Potato Association of America Annual Meeting. Denver, CO.
9. Zotarelli, L., M.D. Dukes. 2011. Physiological response and yield of green bell pepper under different irrigation strategies on sandy soils. American Society of Horticultural Sciences meeting, Hawaii, HI.
10. Zotarelli, L., M.D. Dukes, T.P. Barreto, 2010. Indirect determination of crop-coefficient of bell pepper using soil moisture sensors. 5th National Decennial Irrigation Conference, Phoenix, AZ.
c. Regional Presentation
Invited (1)
1. Zotarelli, L., Johns, C. 2012. Adaptation Exchange - Microirrigation: adapting to climate variability and change and improving resource-use efficiency. Quincy, FL.
d. State Presentations
Invited (7)
1. Zotarelli, L. 2014. Best management practices for horticultural crops: a talk to Ambassadors of Agriculture from Land Grant Institutions – Hastings, FL.
2. Zotarelli, L. 2014. Soil and tissue sampling, why, when and how to get proper samples and what to do with them when you have them. Annual Conference of Florida Grape Growers Association, Palatka.
3. Zotarelli, L., C.E. Barrettg. 2013. Tri-County Agricultural Area Best Management Practices Tour. Extension Professional Association of Florida. Hastings, FL.
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4. Zotarelli, L., M. Alligood, D. Fenneman. 2012. Irrigation and nutrient management – Horticultural Section. Florida Small Farms and Alternative Enterprises. Kissimmee, FL.
5. Zotarelli, L. 2011. Cucurbit fertilization. Vegetable and Small Fruit Nutrition Management Workshop, Balm, FL.
6. Zotarelli, L. and D. Gergela 2012. “Florida Potatoes”. Ag Expo, Balm, FL. 7. Zotarelli, L. 2012. “Agricultural Technology – Focus on Citrus Irrigation Management”
FAWN Irrigation Workshop, Arcadia, FL. Contributed (40)
A total of 40 contributed talks from 2010 to 2016. See section 23 - Extension Programs and section 33–Apprendix 1, 2 and 3 for complete list of contributed state talks.
e. Local
Invited (6)
1. Zotarelli, L. 2015. Best management practices for fertilizer and irrigation of vegetable crops. UF – Horticultural Sciences Seminar Series. Gainesville, FL.
2. Zotarelli, L. 2014. Research and Extension program – Cowpen Branch. Hastings Advisory Meeting. Hastings, FL.
3. Zotarelli, L. 2013. A paradigm shift in irrigation and nutrient management of vegetable crops. UF – Horticultural Sciences Seminar Series. Gainesville, FL.
4. Zotarelli, L., M. Alligood. 2012. Drip irrigation system design, components and installation. Drip Irrigation School. Live Oak, FL.
5. Zotarelli, L. 2012. Enhancing fertilizer efficiency in high input cropping systems in Florida. Crop Systems Seminar Series – UF-Ag. Biol. Eng. Dep. Gainesville, FL.
6. Zotarelli, L. 2011. Best management practices for irrigation and fertilization of vegetable crops in Florida. Plant Pathology Department Seminar Series. Gainesville, FL.
Contributed: None
f. Other: None
Contributed Poster Presentations (1)
1. Zotarelli, L., L.R. Rensg, K.T. Morgan, A. Alva. 2014. Determination of ideal soil moisture content and nitrogen fertilizer rate for chipping potatoes. 2014. Potato EXPO, San Antonio, TX.
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18. CONTRACTS AND GRANTS SINCE THE LAST PROMOTION (NOT TO EXCEED TEN YEARS OR FROM UF EMPLOYMENT FOR TENURE NOMINEES).
a. Funded Externally/Funded Internally (41) Role (% resp.)
Agency Grant Title & Dates Dates Total Award (US$)
Candidate Allocation
(US$)
Int/Ext
Co-PI (4%)
USDA – FDACS/Block Grant
Reduction of potato skinning with appropriate timing and type of desiccation before harvest.
11/2016- 11/2018
$99,569 $4,000 E
Co-PI (5%)
USDA – Specialty Crop Res. Initiative
Developing an Eastern Broccoli Industry through cultivar development, economically and environmentally sustainable production and delivery.
09/2016- 08/2021
$4,977,158 $264,223 E
PI (5%)
USDA-NIFA – Univ. of Maine
Potato breeding and variety development for improved quality and pest resistance in the eastern United States
09/2016 – 08/2017
$335,500 $16,775 E
PI (100%)
FritoLay Evaluation of FritoLay potato varieties in Florida
03/2016-03/2017
$23,052 $23,052 E
PI (100%)
J.R. Simplot
Evaluation of N-rates and seed source of Simplot potatoes
01/2016 – 01/2017
$19,661 $19,661 E
PI (4%)
USDA-NIFA – Univ. of Maine
Potato breeding and variety development for improved quality and pest resistance in the eastern United States
09/2015 – 08/2016
$250,500 $8,885 E
PI (77%)
FL Dept. Ag. Cons. Serv.
Irrigation, nutrients, and soil moisture sensor testing and crop modeling interface projects, Year 2
11/2015 – 06/2016
$190,900 $147,400 E
Co-PI (1%)
FL Dept. Ag. Cons. Serv.
Expansion of existing farm weather data collection and display web and smart phone applications and
11/2015 – 06/2016
$145,102 - E
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development of an on-farm wireless network for improved decision support for vegetable crops irrigation and disease control
PI (54%)
USDA – FDACS/Block Grant
Determination of crop coefficient for peaches
02/2016 – 03/2018
$98,773 $53,173 E
Co-PI (16%)
SWFWMD Using fertigation with center pivot irrigation to save water for commercial potato and snap bean production
12/2015-12/2018
$399,802 $64,750 E
PI (5%)
USDA-NIFA – Univ. of Maine
Potato breeding and variety development for improved quality and pest resistance in the eastern United States
09/2014 – 08/2016
$259,290
$13,327 E
PI FDACS Drip Irrigation School 09/2014 $12,420 - E PI (3%)
USDA-NIFA – Univ. of Maine
Potato breeding and variety development for improved quality and pest resistance in the eastern United States
08/2013 – 08/2015
$282,330
$8,850 E
PI (65%)
FL Dept. Ag. Cons. Serv.
Irrigation, nutrients, and soil moisture sensor testing and crop modeling interface projects, Year 1
08/2014 – 06/2015
$336,490 $217,800 E
PI (100%)
Intl. Maize Wheat Improv. Center
Increasing sustainability of potato production with restricted water and nutrient resources
07/2014-02/2015
$15,000 $15,000 E
PI (100%)
UF-IFAS Overhead Sprinkler Irrigation System (Linear) for Hastings Research Farm – matching funds with Hastings Agricultural Extension Center.
05/2014 $54,673 $54,673 I
Co-PI (1%)
USDA – Block Grant
Sustainable phosphorus management for potato production in northeast Florida
12/2014-12/2017
89,228 - E
Co-PI USDA – Smartphone tools for 12/2013 $198,345 $17,000 E
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(9%) FDACS/Block Grant
irrigation – 12/2015
PI (1%)
USDA - Cornell University
Florida broccoli variety evaluation
11/2013-10/2014
$3,172,100 $3,333 E
PI (44%)
FL Dept. Ag. Cons. Serv.
Testing of nutrient sensors and on-farm wireless communication systems, and crop modeling improvements, at two BMP demonstration sites in Florida
07/2013 – 07/2014
$410,000 $182,000 E
Co-PI (1%)
Southern Risk Manag. Educ. Center
Fertilizer and irrigation risk management strategies
07/2013-07/2015
$45,751 - E
PI (13%)
USDA-ARS
Development of high lutein and zeaxanthin potato germplasm
05/2013 – 05/2014
$11,680 $1,465 E
PI (100%)
UF-IFAS Early Career Scientist Funding Opportunity - Alternative irrigation systems for water saving and enhanced fertilizer use efficiency for vegetable crops – An Integrated Approach.
03/2013-03/2014
$ 38,548 $ 38,548 I
PI (100%)
USDA- FL Dept. Ag. Cons. Serv. - Block Grant
Development of an integrated vegetable cropping system (cabbage/cucurbit) to improve irrigation and fertilizer use efficiency
12/2012 – 07/2015
$179,038 $179,038 E
PI (3%)
USDA-NIFA – Univ. of Maine
Potato breeding and variety development for improved quality and pest resistance in the eastern united states
08/2012 – 08/2014
$249,600 $8,580 E
Co-PI (3%)
USAID Trilateral Cooperation – Food Security – USAID, Brazil, Mozambique
01/2011 – 12/2015
$3,680,000 $100,000
E
PI (48%)
FL Dept. Ag. Cons. Serv.
Testing and evaluation of farm irrigation system wireless
12/2012 – 06/2013
$365,000 $175,018 E
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communications, monitoring and control tools & development and/or further calibration of irrigation scheduling, nutrient migration, and/or crop production models
Co-PI (1%)
SW FL Water Manag. Distr.
Exploring the feasibility of converting seepage to center pivot irrigation for commercial potato and snap bean production
09/2012 – 12/2016
$205,381 - E
PI (5%)
SW FL Water Manag. Distr.
Determination of irrigation requirements for peaches
10/2012 – 10/2014
$197,625 $9,438 E
PI (3%)
USDA-NIFA – Univ. of Maine
Potato breeding & variety development for improved quality & pest resistance in the eastern United States
08/2011 – 08/2013
$254,609 $8,500 E
PI (70%)
USDA-ARS
Use of Solanum chacoense to improve nutrient uptake efficiency in potato
06/2012 – 05/2014
$36,195 $25,173 E
PI (100%)
USDA Formula Grant – For Equipment and Infrastructure Support
05/2012 – 09/2012
$11,017 $11,017 E
PI (100%)
Multiple sponsors
IFAS Service Program - Evaluation of mineral nutrition, yield and quality of potatoes and vegetable crops
03/2012 – 03/2017
$9,350 $9,350 E
PI (100%)
USDA-ARS
Physiology of nitrogen uptake and optimal partitioning in potato plants
09/2011 – 09/2013
$22,250
$22,250 E
PI (4%)
USDA-NIFA – Univ. of Maine
Potato breeding & variety development for improved quality & pest resistance in the Eastern United States
08/2010 – 08/2012
$254,609 $10,000 E
Co-PI (1%)
USDA-FDACS/Bl
The effect of nitrogen rate and application
12/2011 –
$37,109 - E
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ock Grant method on peach tree growth and fruit quality
01/2014
PI (53%)
FL Dept. Ag. Cons. Serv.
Calibration and validation of agricultural irrigation and nutrient management decision support
07/2011 – 06/2012
$486,200
$254,609 E
PI (4%)
FL Dept. Ag. Cons. Serv.
Developing of field support for the use of environmental soil-water, and nutrient sensors in agricultural systems
08/2010 – 06/2011
$121,261 $121,261 E
PI (31%)
USDA-NIFA – Univ. of Maine
Potato breeding & variety development for improved quality & pest resistance in the eastern United States
08/2009 – 08/2011
$260,624 $9,600 E
Co-PI (14%)
SW FL Water Manag. Distr.
Evaluation of minimal required number of soil moisture sensors for uniform agricultural and turfgrass irrigation control
11/2010 – 08/2012
$110,000 $34,272 E
PI (100%)
UF-IFAS UF-HOS
Sustainable Cabbage Production – Extension efforts and cabbage Trials
12/2010-12/2011
$18,000 $18,000 I
PI (100%)
UF-IFAS Dean of Research
Potato N-fertilizer BMP Research Trials
01/2010 – 11/2013.
$150,000 $150,000 I
Total $18,113,740 $2,300,021
Summary of External/Internal Grant Funding - 2010-2016 Role Total ($) Direct Cost ($) Indirect Cost ($)
Principal Investigator $2,100,999 $1,929,769 $171,230 Co-Principal Investigator $199,022 $153,267 $45,756
TOTAL $2,300,021 $2,083,035 $216,986
b. Submitted, Pending Decision (1) Role/Resp. Agency Grant Title & Dates Total
Award Candidate
Allocation (US$) Co-PI (2%) Total $32,970 $2,000
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c. Submitted, not Funded (30) Role/Resp. Agency Grant Title & Dates Total
Award Candidate Allocation
(US$) Co-PI (1%)
NSF Quantifying resilience and efficiency of fresh produce systems through integrated modeling of FEW nexus. 03/2016
$2,500,000 $15,000
Co-PI (12%)
USDA - ARS
Identification of genes involved in late blight resistance and processing quality. 10/2015
$86,500 $10,000
Co-PI (6%)
USDA - ARS
Effect of carotenogenesis on abscisic acid content of potato tubers and its relation to haulm architecture and seed dormancy. 10/2015
$53,600 $3,000
Co-PI (10%)
USDA Increasing the resilience of agricultural production systems to climate extremes. 11/2015
- -
Co-PI (25%)
USDA - SCRI
Establishing an eastern broccoli industry. 06/2015
$6,500,000 $320,000
Co-PI (25%)
USDA - SCRI
Climate smart potato systems for the Southeast - productivity, sustainability and adaptation strategies for disease management. 06/2015
$3,700,000 $500,000
CO-PI (40%)
USDA 319 Grant
Improvement of agricultural irrigation efficiency through development of educational materials for producer workshops. 04/2015
$145,289 $15,000
Co-PI (50%)
USDA - CIG
On-Farm nutrient management and water conservation innovations for tablestock potato production in Florida. 02/2015
$271,000 $100,000
Co-PI (25%)
USDA – ARS
Developing a papa criolla-type potato for U.S. production. 10/2014
$15,000 $5,000
Co-PI (15%)
USDA-Block Grant
An economically valuable, drought tolerant specialty crop with associated ecosystem services.10/2014
$200,000 $30,000
PI (75%)
USDA – ARS
Use of Solanum chacoense to improve nitrogen use efficiency in potato. 09/2014
$36,195 $27,100
PI (100%)
CGIAR Decision support system for optimal irrigation of potato crops under water restriction. 07/2014
$50,000 $50,000
PI (30%)
NIFA Breeding to enhance root architecture to improve nitrogen uptake efficiency.
$499,614 $149,996
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06/2014 Co-PI (8%)
IPNI Sustainable phosphorus management for potato production in Florida. 03/2014
$594,638 $50,000
Co-PI (10%)
USDA Integrating site-specific management strategies with simulation modeling to improve water quality in agricultural watersheds. 03/2014
$111,398 $10,000
Co-PI (50%)
USDA – ARS
Development of molecular markers associated with superior nitrogen use efficiency in diploid potato. 01/2014
$43,715 $27,100
Co-PI (10%)
USDA- ARS
Identification of drought and salinity tolerant germplasm in potato. 10/2013
$75,000 $5,000
Co-PI (20%)
USDA – NIFA
Improved process-based models to analyze water use and nitrogen leaching in potato systems. 09/2013
$500,000 $35,000
Co-PI (15%)
USDA-NIFA
Weed control in seepage irrigation furrows for nematode and nutrient management. 06/2013
$197,434 $20,000
PI (50%)
USDA-NIFA
Improved crop management options for potato productivity and water use to mitigate the impact of climate variability and change. 02/2013
$968,000 $720,000
Co-PI (50%)
USDA – ARS
Use of Solanum chacoense to improve nutrient uptake efficiency in potato. 10/2012
$44,115 $31,500
Co-PI (10%)
USDA – ARS
Early generation selection to develop broadly-adapted potato varieties for the eastern U.S. 10/2011
$60,000 $8,000
Co-PI (10%)
USDA – NIFA
Improved crop management options for potato productivity and water use to mitigate the impact of climate variability and change. 06/2011
$749,857 $30,000
Co-PI (10%)
USDA – Foreign Agriculture Service
Improving livelihoods of small holders through irrigation technologies. 06/2011
$39,912 $3,900
PI (60%)
SARE – Sustainable Agric. Res. Educ. Prog.
Introduction and refinement of efficient irrigation and fertilization with cover crop practices for vegetable production in Northeast Florida. 05/2011
$295,000 $180,000
Co-PI (10%)
SARE – Sustainable Agric. Res. Educ.
Enhancing sustainability of potato production through improvements of yield and quality of sunn hemp as leguminous green manure, biochar
$228,140 $28,814
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Prog. and pulp sources. 05/2011 PI (100%) UF-Dean
of Research
An alternative irrigation system for potato production that maximizes water conservation while increasing tuber yield and quality. 05/2011
$99,716
$99,716
PI (100%)
St. Johns Water Manag. Dist.
St. Johns Water Management District - Alternative irrigation systems for potato production in the TCAA for water conservation. 11/2010
$199,000 $199,000
PI (100%)
USDA-ARS
Integrated approach to improving early-maturing potato yield and quality: a study on irrigation method, harvest maturity and storage conditions. 12/2010
$92,987 $92,987
PI (85%)
SW FL Water Manag. Dist.
Evaluating the potential of ultra-low and low-flow irrigation systems to improve water conservation of strawberry production. 09/2010
$165,000 $140,000
Total $18,521,110 $2,906,113
d. Monetary (SHARE) contributions Donor Amount (US$) 2016 2015 2014 2013 2012 2011 Frito Lay $10,000 $10,000 $10,000 $10,000 $ 9,000 US Potato Board $18,500 $18,500 $18,500 $18,500 $18,500 $17,500 Int. Plant Nutrition Institute $5,000 $ 5,000 HZPC $7,500 $7,500 $7,500 $ 8,000 Agri Global $8,000 $ 8,000 Canada Potatoes $2,100 $2,100 $7,500 Real Potatoes Co. $3,000 Oostara $20,400 $35,700 $22,100 $12,000 Prince Edward Isl. Potato Board
$2,100
J.R. Simplot $10,000 $5,000 UTZ $ 500 Bejo Seeds $4,000 Total $342,000
e. In-kind Contributions Donor Date Amount Diamond R Fertilizer 2013 $10,000 Commercial Farm Fertilizer for Research Trial Potato growers 2010-2014 $332,500 Land and crops produced in potato growers
fields for research and demonstrations (95 acres at $3,500 per acre)
Total $342,500
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19. UNIVERSITY GOVERNANCE AND SERVICE a. University:
• 2016 - Judge for Graduate Student Competition for the 5th UF Water Institute Symposium.
• 2015 - Served as member of 2015 Graduate Student Mentoring Award Committee.
• 2015 - present - Academic Manager for Cooperative Agreement with State University of Maringá, Brazil.
• 2014 - present - Academic Manager for Cooperative Agreement with University of Foggia, Italy.
• 2014 - Served as Marshall in the Master/ Bachelor Degree Commencement Ceremony in Spring.
• 2014 - Judge for Graduate Student Competition for the 4th UF Water Institute Symposium.
• 2013 - Served as Marshall in the Master/Specialist/Bachelor Degree Commencement Ceremony in Summer.
• 2012 - Judge for Graduate Student Competition for the 2nd UF Water Institute Symposium.
b. College (IFAS)
• 2015 – present Chair of Priority Work Group of Water Conservation – UF IFAS Extension Initiative II
• 2014 – Member of Search & Screen Committee for Assistant/Associate Professor position for UF/IFAS Gulf Center Research and Education Unit.
• 2013 – Member of Search & Screen Committee for Research Coordinator position for Hastings Agricultural Extension Center.
• 2010 - present - Member of Advisory Committee of Experimental Station of Hastings Agricultural Extension Center at Hastings, FL.
c. Department (Horticultural Sciences)
• 2016 – Chair of Search & Screen Committee of Assistant Professor Perenial Fruit Extension Specialist Position
• 2014 – Chair of Research Assistant Professor Search & Screen Committee
• 2013 – present – Member of Faculty Advisory Committee (FAC)
• 2013 – present – Member Horticultural Sciences Graduate Admission Committee
• 2013 – Member Horticultural Sciences Chair Search & Screen Committee
• 2012 – 2014 – Member Horticultural Sciences Department Website Committee
• 2011 – 2013 – Florida Vegetable Handbook Committee for distribution
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• 2011 – present – Portuguese Translator for Horticultural Sciences
• 2011 – 2015 – Member of Horticultural Sciences Department Seminar Committee
• 2011 – 2012 – Member Operations Committee
• 2011 – 2012 – Member of Horticultural Sciences Social Committee
• 2011 – 2014 – Horticultural Sciences Graduate Student Club Advisor
20. CONSULTATIONS OUTSIDE THE UNIVERSITY: None
21. EDITOR OF A SCHOLARLY JOURNAL, SERVICE ON AN EDITORIAL ADVISORY BOARD OR REVIEWER FOR A SCHOLARLY JOURNAL
a. Editor (2) • Associate Editor for Scientia Agricola - Crop Science – 06/2013 to present. Scientia
Agricola is a bimonthly Scientific Journal of the University of Sao Paulo, Brazil. Print ISSN: 0103-9016. Thomsom Reuters 5-year Impact Factor – 1.103.
• Associate Editor – 07/2010 to 10/2013. Revista Ceres is a bimonthly Scientific Journal of the Universidade Federal de Viçosa, Viçosa, Minas Gerais, Brazil. Print ISSN: 0034-737X - On line ISSN: 2177-3491. Impact factor: 0.18.
Number of reviews concluded per year: Journal 2016 2015 2014 2013 2012 2011 2010 Total Scientia Agricola 5 7 7 7 - - - 26 Revista Ceres - - - 5 9 1 2 17 Total 5 7 7 12 9 1 2 43
b. Editorial Advisory Board (1) • Member of Editorial Board of Acta Scientiarum - Agronomy – Crop Science.
12/2014 to present. Acta Scientiarum is a tri-monthly scientific journal of the State University of Maringa, Brazil. Print ISSN 1679-9275 and On-line ISSN 1807-8621 – Thomsom Reuters 5-year Impact Factor 0.717.
c. Reviewer for Scholarly Journals:
Voluntary reviewer for the following scholarly journals (year):
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Book Manuscript Reviewed: (1) • Technical reviewer for Haber, L.L., C.C. Ecole, W. Bowen, F.V. Resende. 2015.
Horticultura em Moçambique: caracterização, tecnologias de produção e de pós-colheita. Brasília, DF: Embrapa. p.277. ISBN 978-85-7035-515-7
22. INTERNATIONAL ACTIVITIES Horticultural crop production is central to food security worldwide. The rising demand for fresh and processed fruits and vegetables cultivated with sustainable production practices creates opportunities for scientific collaboration with foreign research institutions. International collaboration builds and strengthens local scientific and technical capacity, which leads to the application of novel research findings and technical knowledge which increase productivity and participation in global markets. International activities have become an important part of my research and Extension programs focused on water and nutrient management of vegetable
Journal 2016 2015 2014 2013 2012 2011 2010 Total Agriculture, Ecosys. and Environment 1 1 Agronomy 2 1 Agronomy Journal 1 1 2 American Journal of Potato Research 1 1 2 Applied Engineering in Agriculture 1 1 Archives of Agron. and Soil Science 1 1 2 Biosystems Engineering 1 1 Bragantia 1 1 Canadian Water Resources Journal 1 1 Catena 1 1 Crop Science 1 1 European Journal of Agronomy 1 1 HortScience 2 1 3 HortTechnology 1 2 2 1 6 J. of Food Quality 1 1 J. of Irrigation and Drainage Eng. 1 1 Journal of Crop Environment 1 1 Journal Sci. of Food and Agriculture 1 1 Land Degradation 1 1 Nutrient Cycling in Agroecosystems 1 1 2 Pedosphere 1 1 Science of the Total Environment 1 1 Scientia Agricola 1 1 2 Scientia Horticulturae 1 1 1 3 Transactions of ASABE 1 1 Total 9 9 9 5 2 3 3 40
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production. My international activities include: my participation in the USAID Trilateral International Cooperation Project, cooperative agreements, and hosting foreign students and scientists as described below. Goals
• Establish international collaborations to enhance the scientific capabilities of the UF Horticultural Sciences Department through the exchange of knowledge and experiences related to water and nutrient management of vegetable production.
• Seek potential foreign sources of funding to conduct domestic and international research on vegetable production and sustainability that would result in benefits to all parties involved.
Outcomes and Impacts The USAID Trilateral International Cooperation Project is between USA, Brazil and Mozambique and is a food security initiative in Mozambique funded by USAID and the Brazilian Agency of Cooperation. I was member of Production Systems Working Group and I collaborated on the writing of the horticultural section of the proposal. The activities consisted of the establishment and coordination of field trials on alternative irrigation systems, the test for adaptation of heat-tolerant vegetable varieties (tomato, peppers, lettuce, pepper and others) for summer production, and the development of educational efforts to improve vegetable production in Mozambique. A book “Horticulture in Mozambique” (see item 16.d) was released in 2015 with the research results and recommendations for vegetable production for Mozambique. A major contribution of this project was the development and implementation of the Agroclimate Mozambique http://mz.agroclimate.org/sobre/ which includes climate related information and decision support tools customized for Mozambique. Seven contributed lectures about irrigation were presented to scientists and extension agents of the Research Institute of Mozambique (IIAM) between 2012 and 2015.
1. Zotarelli, L. and H.R. Silva. 2015. Fertigation of horticultural crops. Food Security and Production Systems Workshop. IIAM, Maputo, Mozambique.
2. Zotarelli, L. and E. Gelcerg. 2015. AgroClimate Mozambique. Food Security and Production Systems Workshop. IIAM, Maputo, Mozambique.
3. Zotarelli, L. and H.R. Silva. 2014. Irrigation Scheduling. Food Security and Production Systems Workshop. IIAM, Maputo, Mozambique.
4. Zotarelli, L. and H.R. Silva. 2014. Use of sensors for irrigation management. Food Security and Production Systems Workshop. IIAM, Maputo, Mozambique.
5. Zotarelli, L. and G.B. Buckp. 2012. Irrigation systems. Agricultural Research Institute of Mozambique - IIAM Maputo, Mozambique.
6. Zotarelli, L. and G.B. Buckp. 2012. Scheduling of irrigation management for horticultural crops. Agricultural Research Institute of Mozambique - IIAM Maputo, Mozambique.
7. Zotarelli, L. and G.B. Buckp. 2012. Drip irrigation systems – design, installation, operation and maintenance. Agricultural Research Institute of Mozambique - IIAM
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Maputo, Mozambique. In 2014, I started a collaboration project with the plant physiology group of the International Potato Center (CIP) in Lima, Peru. The project studied the physiological mechanisms of drought tolerance in potato. With the financial support of the USDA Borlaug Fellowship, my Ph.D. student, Libby Rens, worked for six months at the CIP. I was invited for a presentation in October 2014 and the results of this project has been submitted to peer-reviewed journal (Section 33). I am the academic advisor for the cooperation agreement between University of Florida and State University of Maringa, Brazil and University of Bari, Italy. Under these cooperative agreements I served on MSc. committee of Camila Ferreira at State University of Maringa. I have hosted two other graduate students from Brazil (H.T. Hashiguti) and one from Italy (D. Racano), (Section 9 – academic advising). At the State University of Maringa, I have given three seminars:
1. Zotarelli, L. 2014. Best management practices of irrigation and N-fertilizer for potatoes in Florida. International Seminar in Agronomy.
2. Zotarelli, L. 2014. Irrigation water management of vegetable crops. International Seminar in Agronomy.
3. Zotarelli, L. 2011. Academic career in the United States. Recognition I have served on the editorial board of three international journals (see section 21.a.b). I have had seven invited international presentations (see section 17.a). 23. EXTENSION PROGRAM A. Extension Philosophy The role of an Extension Specialist in the community goes beyond a simple transfer of information. As Extension Specialist and researcher, I must have a clear picture of the clients’ needs and problems, and how the current governmental policies affect their farming practices. My role is to provide leadership, encourage innovation and promote changes in practices and behavior in order to achieve more sustainable agriculture. In practice, after identifying a given problem, it is necessary to raise the farmers’ awareness of the issue by mobilizing interest and encouraging them to define a situation as problematic. In addition, I am committed to make the information accessible by publishing and transferring the knowledge that the research has provided to solve certain issues. During the entire process, the periodic evaluation of the impact and effectiveness of the extension program is essential to its success. The overall goal of my extension program is to develop, implement, and integrate educational activities to improve sustainable vegetable production in Florida. The clientele target of my extension program includes County Extension Faculty, vegetable growers, and industry partners. Job Description
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The goals of my statewide Extension Program are to improve sustainable vegetable production systems and provide leadership and coordination for statewide educational efforts in vegetable production and management. This Extension program contributes directly to the Super Issues of the UF/IFAS Extension Road Map 1) the awareness and appreciation of our food systems and our environment and 2) the sustainability and conservation of resources in our Florida communities and to the High-priority Initiatives 1) Increasing the sustainability, profitability, and competitiveness of agricultural and horticultural enterprises and 2) Enhancing and protecting water quality, quantity, and supply. Professional development in Extension • 2012 – IFAS-Certificate in Teaching and Learning in Extension (course with 12 on line
modules, sponsored by Florida Cooperative Extension Service). Sponsored by FCES-IFAS.
Nature and Description of Program My 60% extension effort is divided into three major Program Areas:
1) Increasing the knowledge and adoption of sustainable irrigation practices for water conservation by vegetable industry (20%)
2) Enabling awareness and adoption of sustainable fertilization practices vegetable production systems (20%)
3) Promote awareness and adoption of new vegetable varieties well adapted to Florida growing conditions (20%)
Summary of Extension Activities (2010-2016) Activity Number Attendance Contact
hours External/Internal Funding: 10 research projects with Extension components: $735,612 Target: County Extension Faculty
In-service training 6 164 1,289 Target: county extension agents, growers and vegetable industry
Workshop – Organizer/presenter – National Level 1 150 600 Field days and meetings 35 1021 5,005 On-farm trials and demonstrations 23 50 905 On-farm visits 85 - 675
Outcomes (Print and media) Refereed Journal Publications 30 - - Extension publication (EDIS) and Vegetable
Handbook 32 - -
Trade Journal Articles 8 - - Irrigation Apps for Smartphones downloads 829 - - EDIS website hits (since 2011) 238,772 - -
A. Program Area 1. Increasing the knowledge and adoption of sustainable irrigation practices for water conservation by vegetable industry Situation Statement
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The State of Florida has been revising water quality and use regulations affecting agriculture, primarily driven by increasing public concerns related to water quality and availability. Groundwater has been the primary source of water for both public supply and agricultural irrigation in Florida, and since aquifer levels have been dropping, incentives and stricter regulations have been put in place to improve water use efficiency in all types of uses, including agricultural irrigation. Furthermore, agricultural producers are now required to implement best management practices (BMP) to minimize pollution loading to surface water bodies. The BMP have been developed by Florida Department of Agriculture and Consumer Services (FDACS), the Florida Department of Environmental Protection (FDEP), Water Management Districts (WMD) and UF-IFAS to address agricultural water quality and water use impacts, including the reduction of nutrient loads in Florida’s water bodies. Currently, the predominant irrigation system for vegetable crops in Florida is called “seepage irrigation”. In this irrigation system, water is pumped from wells to a pipeline system that carries the water to individual furrows. Seepage has low irrigation efficiency because it requires a large volume of water to maintain a high water table to irrigate the crop. The St. Johns WMD estimates that a potato crop under seepage uses about 500,000 gal/acre per season. The combination of the large water withdrawal rate from the Upper Floridian aquifer and drought in the last few years has resulted in a drastic increase in salt content in deep wells due to seawater intrusion in some agricultural areas, which could completely jeopardize agricultural production in the northeast Florida. Thus, water conservation is imperative. New alternative irrigation systems for water conservation have been introduced in vegetable production areas across the state since 2011 supported by statewide cost-share programs. The available options to replace the seepage include tile drainage, drip irrigation, subsurface drip irrigation for water table management and sprinkler irrigation. These irrigation systems have higher irrigation efficiency and it has been shown, that if well managed, can greatly reduce water use while maintaining crop yield. To ensure that these new BMP for irrigation are properly adopted and managed by growers, my Extension program must share science-based information in a practical way that helps growers with their decision making. Target audience Agricultural producers, County Extension Faculty, state specialists, certified crop advisors, consultants, suppliers. Goal and objectives The overall goal of the program area 1 is to provide leadership to County Extension Faculty and growers with the most recent, updated science-based knowledge and technology that will aid their decision-making in adoption and management of irrigation systems. Specific, measurable, achievable, relevant and time-bound (SMART) objectives of my Extension Program are divided in short, medium and long-term as follows: The short-term objective is to increase awareness and knowledge of County Extension Faculty, growers and vegetable industry in general, regarding alternative irrigation systems and BMP for irrigation of vegetable crops. Following Extension Activities, two-thirds of the participants will gain additional knowledge on irrigation and BMP. The medium-term objective is that at least one third of my program participants will convert to
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more efficient irrigation system or improved management of existing irrigation systems based on the knowledge gained within three-years of the completion of the Extension activities. The long-term objectives are to increase agricultural water conservation and water quality as well as the sustainability of the vegetable production in the state of Florida. The initial impacts of the Extension activities are documented as reduction in agricultural water use and economic savings occurred since the begining of the Extension activities. The full impacts of the Extension activities will require an assessment of greater than five years. Educational methods and activities My statewide educational program efforts combine a number of methods to effectively deliver information to growers, County Extension Faculty and the community. These activities include field days, In-Service Training, extension publications, workshops, on-site demonstration projects, and on-site visits, develop a relationship with stakeholders, growers, County Extension Faculty and industry in general and learn about their operations and needs
• Deliver In-service training (IST) statewide for County Extension Faculty (see section 33, Appendix 2)
• Organize and deliver in collaboration with County Extension Faculty annual commodity meetings (e.g. field days, workshops) with growers and industry (see section 33, Appendix 3)
• Conduct on-farm demonstration trials with effective participation of the growers and County Extension Faculty on planning, execution and evaluation of the activities (see section 33, Appendix 4)
• Clientele visits and consultations with county extension agents from St. Johns, Flagler, Putnam, Suwannee, Manatee, Sarasota and Brevard counties (see section 33, Appendix 5)
• Conduct one-on-one visits to commercial growers and provide technical assistance on irrigation management, design and operation
• Organize and conduct “Irrigation systems and current technology available for use in vegetable crop production” workshop at the American Society of Horticultural Sciences annual meeting
• Publish educational material (EDIS, field day handouts, fact sheets, trade journal articles)
• Develop tools to help grower to improve irrigation scheduling (Irrigation Apps for smartphones)
• Present research/extension outcomes at meetings Summary of Educational Efforts and Activities on Sustainable Irrigation Practices
Activity Number Attendance Contact hours
Target: County Extension Faculty In-service training 6 149 1,184 Target: county extension agents, growers and vegetable industry
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Outcomes and impacts The accomplishments and impacts of my Extension program regarding to Sustainable Irrigation Practices are described below according to the objectives: The short-term objective was to increase awareness and knowledge of County Extension Faculty, growers and vegetable industry regarding to alternative irrigation systems and BMP for irrigation of vegetable crops.
• Development of infrastructure to support IFAS Research and Extension Programs on irrigation management at Hastings Agricultural and Extension Center: With over $561,905 in funding I developed an irrigation park at the research farm in Hastings with alternative irrigation systems to seepage. The irrigation systems are tile irrigation drainage, surface and subsurface drip irrigation and sprinkler irrigation. The irrigation infrastructure available allowed my Extension Program to provide hands-on training to County Extension Agents, growers, industry personnel, and 4-H students. Five graduate students to successfully conduct their research and it has been used by other Faculty members. Since then, aproximately 415 people have been trained on field days, In-service trainings and agricultural tours.
• Educational programs: Approximately 1,462 people have participated in education programs regard to sustainable irrigation practices since 2010. Based on pre- and post-training tests applied during these educational events, I quantified the knowledge attained as a result of the training.
• Between 2010 and 2015, an average of 84% of the participants (County Extension Faculty, crop consultants and state specialists) of In-service trainings reported a knowledge increase from 63% to 86%.
• As an outcome of the IST trainings, 75% of participants indicated that they were “likely” to use the information provided about irrigation in their newsletters or other media outlets, answer client questions or provide individual consultations, and incorporate what they learned into existing programming or even deliver new programming in this area.
• Directly trained County Extension Faculty (Mark Warren, David Dinkins, Steven Lands, Aparna Gazula) on principles of irrigation, irrigation scheduling for different systems, use of soil moisture sensors for irrigation scheduling.
• Since 2011, the number of web visits on EDIS publications was greater than 114,000. In particular, the EDIS AE459 “Step by step calculation of the Penman-Monteith
Workshop – Organizer/presenter – National Level 1 150 600 Field days and meeting with topic irrigation 33 1,133 2,742 On-farm trials and demonstrations 11 30 465 On-farm visits 52 - 157
Outcomes (Print and media) Refereed Journal Publications 18 - - Extension publication (EDIS) and Vegetable Handbook 11 - - Trade Journal Articles 8 - - Irrigation Apps for Smartphones downloads 829 - - EDIS website hits (since 2011) 114,608 - -
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Evapotranspiration FAO-56” ranked 47th in the most visited EDIS in 2015 with more than 21,000 visits in that year and cumulative 44,412 visits since its publication.
The medium-term objective was achieved in the implementation of improvements in their irrigation system or management based on the knowledge gained within three-years of the completion of the Extension activities. The preliminary achievement of the long-term objectives were documented as agricultural land converted to efficient irrigation system, potential reduction in agricultural water use and economic savings of the adopted practice.
• Changes in irrigation practices: Between 2011 and January 2016, a total of 25 vegetable growers have converted part of their agricultural land to more efficient irrigation systems in the state through Florida Cost-Share Program3. The available options to replace the conventional seepage include tile drainage, subsurface drip irrigation for water table management (also called enhanced seepage) and sprinkler irrigation. During the spring 2015 and 2016 growing seasons, the research project “Irrigation, nutrients, and soil moisture sensor testing and crop modeling interface projects, Year 1/2”, funded by FDACS (see section 18.a.), evaluated the water savings for each irrigation at the Hastings Agricultural and Extension Center. The reduction in irrigation water use was 51%, 58%, and 68% for tile drainage, subsurface drip irrigation and overhead irrigation compared to the conventional seepage. Similar water savings were reported by Liao et al. (2016) (see section 16.f). for overhead irrigation in potatoes cultivated in Manatee county. Overall, the agricultural land converted to more efficient irrigation systems in the state (approximately 4,397 acres) represent an estimated water savings of 979 million gallons of fresh water per growing season.
Specific impacts per irrigation system: • Tile drainage systems: Seventeen growers installed tile drainage systems totaling 1,538
acres. The installation of tile drainage systems improves the capability to manage the water table, reduces water use, and increases the efficiency of drainage during rainstorms. Preliminary assessments of the energy savings comparing traditional seepage and tile drainage on a 65-acre grower’s field showed a reduction of 40-60% of electricity consumption compared to a similar field under seepage. The estimated savings in energy costs are in the order of $19.5/acre with the tile drainage system. A conservative estimation of the water saving about 200,000 gal/acre/season (40% reduction in irrigation), which with the current converted land represents 307 million gallons of water conserved per season. An additional advantage of the system is the gain of 10-12% in cultivated land due to the removal of the existent irrigation furrows required for seepage irrigation. The increase in planted area makes the tile drainage out-perform the seepage system in $2,000/acre over a ten-year period (Rogers et al., 2014; see section 16.g). About 185 acres of furrows are now dedicated to crop production.
• Subsurface drip irrigation: In 2010, our Extension team met with a potato grower and worked out a plan to install 5 acres of subsurface drip for water table management. In 2012, the same grower had converted another 70 acres. As of January 2016, about 435
3 It is the partnership between Florida Department of Agriculture and Consumer Services, Florida DEP, St. Johns River Water Management District and NRCS.
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acres of potatoes (6 growers) were converted from seepage to subsurface drip irrigation. It has been shown that the conversion has the potential to reduce water consumption by 30% compared to the traditional seepage irrigation, which can be translated to saving 65 million gallons of fresh water per potato season in those 435 acres. One advantage of the subsurface drip is the lower cost of implementation compared to tile drainage systems.
• Sprinkler irrigation: Approximately 1,200 acres in southwest Florida and 1,224 acres of commercial land in northeast Florida have been recently converted from seepage to overhead/sprinkler irrigation. With the conservative estimated reduction in irrigation water use by 55% (Liao et al. 2015, see section 16.f), the 2,424 acres converted to sprinkler irrigation represents 606 million gallons saved per growing season.
• Surface drip irrigation for potatoes: One table-stock potato grower has tested viability to use surface drip irrigation for fresh market potatoes. On-farm demonstration plots of 4-8 acres were conducted at two large potato producers (400 and 800 acres, respectively) during 2010-2013. Our research findings (Reyes-Cabrera et al. 2014, 2016; Makani et al. 2015; graduate students see section 16.f) demonstrated that drip irrigation for potatoes has the greatest potential for irrigation water savings (48 to 88% compared to seepage). Although tuber quality may be higher under drip irrigation, the adoption of drip might not be an economic option considering the current production costs and selling prices of table stock potatoes. However, the knowledge generated from this effort can be expanded to other commodities.
• Converting seepage to plasticulture/drip irrigation for vegetable production: Barrett et al. (2015) and Paranhos et al. (2016) (graduate students; see section 16.f) have developed and refined the use of plasticulture/drip irrigation for high population cabbage production. Over 5 years of study, the plasticulture system yielded on average 548 cwt/ac, about 208 cwt/ac higher than seepage. Although, the plasticulture system was estimated to have a 36% higher fixed cost than the bare ground seepage, mean profit for plasticulture was 54% higher. A risk analysis revealed that plasticulture has a 40% higher likelihood of producing a profit above $2,363 on an acre basis than the bare ground system. On-farm demonstration and field day with growers were conducted in 2014 and 2015 (see section 33, Appendix 4;). The conversion from seepage to plasticulture/drip is still in the pilot stage, however, the interest in the technology has grown. Approximately, 25 acres of vegetable (cabbage, pumpkins, Asian vegetables, onions) in the northeast Florida have been converted to drip. The slow adoption of drip and plasticulture is due to the lack of information on the cost of investment, management required, and benefits of plasticulture for vegetable crops, and my Extension program is currently working on the dissemination of this information.
• Irrigation water salinity reduction: Our extension team has identified that several deep (>200 ft) irrigation wells in northeast Florida have shown higher salt water content due to salt water intrusion in deep aquifers. In 2012, after the potato growing season and the Salinity Meeting with growers in Flagler Co., three growers, in collaboration of with our team, have identified deep irrigation wells with salt problems. Those wells were plugged to become shallower, which reduced the irrigation water electrical conductivity by 90%. About 180 acres affected by the high salt contents are back in production with lower electrical conductivity in the irrigation water. According to pre and post-tests and post-
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training and IST evaluations, salinity meeting attendees increased their understanding of salinity problems and practices to mitigate its effects on vegetable production (95%), and they felt they were better prepared to develop and implement strategies to mitigate salinity problems (90%).
• Irrigation scheduling: In collaboration with Dr. Kati Migliaccio, Dr. Clyde Fraisse (Ag. Bio. Eng. Dept.) and Dr. Kelly Morgan (Soil and Water Sci. Dep.) a series of irrigation application for smartphones were developed to help the vegetable, citrus and the turf industry to perform better irrigation scheduling practices. Currently, there are six Smartirrigation apps available (vegetable, strawberry, avocado, citrus, cotton and turf). As of December of 2015, there are a total of 829 users. The use of the vegetable app to determine irrigation scheduling for cabbage resulted in water savings of 23% and an increase in yield of 1,250 lb/ac and compared to a traditional irrigation schedule.
B. Program Area 2. Enabling awareness and adoption of sustainable fertilization practices for vegetable production systems Situation Statement The lower St. Johns River (LSJR) was classified as an impaired waterway by the State’s Total Maximum Daily Load regulations in several segments of the main stream due to high concentrations of N and P. Nutrient loading from wastewater treatments is the largest contributor of nutrient pollution in the LSJR, but runoff from urban, suburban and agricultural areas was also identified sources of nutrient pollution in the river. The agricultural area within the LSJR Basin is responsible for 60% of the potato production in the state. The combination of high water table, coarse soil texture, and low soil organic matter content often leads to offsite movement of soluble N and P. In 2001, the Water Quality Protection BMP was established to reduce nutrient loading into the river from agricultural sources by cost-sharing the implementation of BMP like structures for water table monitoring and control, sediment control, soil test recommendation. Although that was an important step towards the increase of fertilizer use efficiency and sustainability of potato production, there was a lack of information about potato N demand, fertilizer rate and timing of application to maximize yield and minimize risk of nitrate leaching. In a survey conducted in 2012, potato growers reported applying a total N rate ranging from 178 to 280 lb/ac split into three applications throughout the season. Approximately, 75% of the growers broadcast N-fertilizer around 30 to 40 days before planting, supplying 0 to 60% of the total N fertilizer. The following fertilizer application is at plant emergence, and ranges from 0 to 70% of the total N and the final application at tuber initiation with 0 to 50% of total N applied in the season. In 2011, another cost-share program for northeast Florida was put into place with the objective to improve water quality and water conservation. In addition to the alternative irrigation systems, this cost-share program also identified the use of banding fertilizer equipment as an effective BMP practice. For many years, broadcasting was the predominant fertilizer method for potato production. This wide range of N rates at each application timing and fertilization broadcasting highlights that the strategies for seasonal distribution of N fertilizer application for potatoes was very variable among growers and not well established. Determining a proper combination of fertilizer rate with application timing can maximize potato yield while minimizing the environmental risk of N loss. My Extension program provides information about sustainable fertilizer practices that help growers to properly manage crop nutrients and to be compliant with BMP’s guidelines.
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Target audience Agricultural producers, County Extension Faculty, state specialists, certified crop advisors, consultants, suppliers. Goal and objectives The overall goal of the program area 2 is to provide County Extension Faculty, growers, certified crop advisors, consultants and fertilizer suppliers with the most recent, updated science-based knowledge on fertilizer management of vegetable crops. Through a cooperative model of partnership between the vegetable growers and the Research/Extension team to develop fertilization strategies that will allow growers to become more efficient and sustainable in their fertilization practices. The short-term objective is to increase awareness and knowledge of County Extension Faculty, growers and vegetable industry in general regarding to proper fertilizer management for vegetable crops. Following Extension Activities, two-thirds of the participants will gain additional knowledge on BMP for sustainable fertilizer practices for vegetable crop systems. The medium-term objective is that at least one third of my program participants will adopt more efficient fertilization practices based on the knowledge gained within three-years of the completion of the Extension activities. The long-term objectives are to reduce fertilizer input and maintaining vegetable production, and therefore increase sustainability of the vegetable production in the state of Florida. The preliminary impacts of the Extension activities are documented as reduction in fertilizer use and agricultural land converted to more efficient fertilization practices. The full impact of the Extension activities will require an accessment longer than five years. Educational methods and activities
• Conduct large on-farm demonstration trials with effective participation of the growers and County Extension Faculty on planning, execution and evaluation and discussion of the activities and results (see section 33, Appendix 4)
• Develop a relationship of trust with stakeholders, growers, County Extension Faculty and industry
• Conduct one-on-one visits to commercial growers and provide technical assistance on fertilization practices
• Clientele visits and consultations with county extension agents from St. Johns, Flagler, Putnam, Suwannee, Manatee, Sarasota and Brevard counties
• Deliver In-service training statewide for County Extension Faculty
• Organize and conduct field days
• Organize and deliver in collaboration with County Extension Faculty annual commodity meetings (e.g. field days, workshops) with growers and industry
• Publish educational material (EDIS, field day handouts, fact sheets, trade journal articles)
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• Present research/extension outcomes at meetings Summary of Educational Efforts and Activities for Objective 2. Fertilization Practices Activity Number Attendance Contact
hours Target: County Extension Faculty In-service training of fertilizer management 5 135 1,173 Target: county extension agents, growers and vegetable industry Field days and meeting with topic irrigation 22 360 1,748 On-farm trials and demonstrations 10 30 360 On-farm visits 80 - 432 Outcomes (Print and media) Refereed Journal Publications 11 - - Extension publication (EDIS) 2 - - EDIS website hits (since 2011) 4,149 - - Outcomes and impacts This Extension program has achieved the short-term objective which was to increase awareness and knowledge gain of County Extension Faculty, growers and vegetable industry in general regarding to proper fertilizer management for vegetable crops.
• Since 2012, 164 County Extension Faculty and Crop Advisors statewide have been trained by my Extension program regard to fertilization practices. For example, the IST “Irrigation management strategies and 4R plant nutrition” (Clearwater and Balm, see Appendix 1 of Section 33), pre and post-program survey responses were collected from 60 participants. The results showed that 65% of the participants had gained knowledge and the average knowledge gain was from 78% to 89% as a result of the training.
• Approximately 525 people (including growers) have participated in education programs (field days, meetings, presentation) regard to fertilization practices for horticultural crops since 2010.
The medium-term objective is being achieved with the implementation of more efficient fertilization practices based on the knowledge gained within three-years of the completion of the Extension activities. Initial results indicate that the long-term objectives of reducing fertilizer input and maintaining vegetable production is in progress.
• Improved fertilizer application: As a result of the research and outreach efforts of the “Potato fertilizer rate and timing BMP and banding fertilizer applicator (2010-2014)” Demonstrations (See Appendix 4, Section 33), in 2011 one potato grower (900 ac) converted from broadcast fertilizer application to a banded fertilizer application with a similar machine used in the BMP trials. This grower’s testimonial was that he is progressively decreasing fertilizer rate every year, and, according to him, it has resulted in an annual savings of $25,000 in his 900 acres (savings of $28/acre). As of January 2016, 13 growers have converted their fertilizer application to banding, which covers a
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total of 9,840 acres under banding fertilization instead of broadcasting (representing 48% of the 20,300 acres cultivated with potatoes in northeast FL). The estimated savings in fertilizer is on the order of $ 275,520 annually. As the banding fertilizer machine become more popular among growers, with an estimated reduction of N fertilizer of 8 to 12%, it can be translated in a reduction of 360,000 to 400,000 lb of N fertilizer not applied if only 50% of potato production in the state adopt this technology.
• Timing and rate of N fertilizer for potatoes: From 2010 to 2014, a total of 28 field trials (randomized and replicated design) were conducted in commercial potatoes fields in close collaboration with growers and County Extension Faculty. The objective of these trials was to identify the most appropriate timing and N-fertilizer rate that maximize yield with higher N-fertilizer use efficiency by the crop. Six peer-reviewed publications with results from these trials were published in well-recognized journals such as Agronomy Journal, Field Crops Research, Potato Research and Nutrient Cycling in Agroecosystems (Zotarelli et al. 2014, 2015; Rens et al. 2015abc, 2016; see section 16.f). The main outcomes of the combined effort of research and extension identified that the N-fertilizer use efficiency (NFUE) is significantly increased between planting time and 55 days after planting. The pre-plant N application has a NFUE of only 8%, which means that if a grower applied 50 lb/ac 30 days before planting, approximately only 4 lb/ac would be uptake by the potato plant; while N-fertilizer applied at emergence and tuber initiation stages (25-55 days after planting), the NFUE is 60%. The complete absence of N-fertilizer application before planting reduced marketable yields, thus alternatively application of N days before or at planting can increase FNUE. The optimum N-rate for emergence application is between 90-126 lb/ac at emergence; while application of N-fertilizer above 50 lb/ac at tuber initiation did not increase tuber yield in any situation. Overall, N-fertilizer rates above 250 lb/ac had no effect on yield or plant N uptake in any farm even under high precipitation seasons. Our research team and County Extension Faculty met with growers after each growing to present and discuss the findings. The N fertilizer timing and rate knowledge acquired in this effort will continue to be transferred to growers in other regions as well as industry partners. The expected long-term impacts of this effort are that growers will gradually reduce N rates as they increase confidence in their new banding equipment and proper application timing in the near future.
C. Program Area 3. Promote awareness and adoption of new vegetable varieties well adapted to Florida growing conditions and improved cultivation practices Situation Statement There is an enormous amount of vegetable varieties available in the market today. Most of the varieties available have been bred or developed in production regions other than Florida. Frequently, these varieties become available to growers without being tested for performance and adaptability of climate, soil and environmental conditions of Florida. Over the years, my Extension program has become an important unbiased reference to vegetable growers looking for alternative varieties to explore different markets, improved characteristics, and yield. The Extension program focus on three vegetable crops: potatoes, cabbage, and broccoli.
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• Potatoes: Approximately 30,500 acres of potato are cultivated during winter and spring in Florida producing one-third of the nation’s winter/spring crop, making the state an important supplier of freshly harvested potatoes from December to June in the United States. Although potato cultivars do not reach their crop potential yield in Florida, a favorable market window allow growers to receive an average price of $20.3/cwt compared to the national yearly mean of $8.6/cwt. Quality requirements are rigorous and many existing varieties are deficient in one or more key characteristics. Improved varieties need to be developed, evaluated, and released to meet the diverse and ever changing needs of growers and their markets. New varieties with outstanding fresh market quality and visual appeal are especially critical for small-scale markets. Improved pest resistance, environmental stress tolerance, and nutrient use efficiency will reduce the need for pesticides and agriculture’s impact on the environment while maintaining profitability. In particular, the Florida potato industry that focuses on a processing market could benefit of varieties with earliness, good chip quality from the field, and tolerance to abiotic stresses such as high temperatures and intermittent drought. Internal heat necrosis brought on by these two environmental factors is a serious and costly quality defect in the state. New fresh market varieties are needed that combine attractive appearance, high yields, pest resistance (e.g. late blight and scab), tolerance to handling damage, and excellent boiling and baking quality. Ideally, new varieties will be distinctive and will offer growers new marketing opportunities. Red-skinned and specialty-type varieties provide a higher value market. Excellent skin appearance, stable skin color in storage, resistance to skinning, and resistance to superficial diseases such as silver scurf are critical. Specialty-type varieties (e.g. fingerlings, purple-skinned, blue-skinned, and colored-flesh types) are growing in popularity in the high-value, direct-sale “local-regional foods” markets.
• Cabbage: Florida is a top producer of cabbage in the United States with an annual value
close to $50 million cultivated in about 10,500 acres in Florida. Currently, the cabbage production in Florida relies on few cabbage varieties (e.g. Bronco, Bravo, Danish varieties). As the cabbage growing season in Florida ranges from September to April with a wide variation in weather patterns, more varieties adapted to Florida climate with resistance to black rot and sclerotinea are needed.
• Broccoli: Currently, Florida has about 2,500 acres cultivated with broccoli. Northeast
Florida has perfect climate conditions to grow broccoli in the winter. However, if improved varieties with extended harvest season (end of March to early April) are introduced in the region, that would open an opportunity to growers to explore higher market prices. The demand for broccoli grown in the east coast exceeds the supply. My Extension program is collaborating with a Cornell University and USDA Vegetable Laboratory at Charleston to improve genetic population of broccoli by combining resistance to diseases, improve yield potential, and quality characters.
Target audience Agricultural producers, vegetable breeders, County Extension Faculty, certified crop advisors,
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consultants, seed companies. Goal and objectives The overall goal of the program area 3 is to provide County Extension Faculty, growers and vegetable industry with reliable information on improved and adapted germplasm to Florida growing conditions. The short-term objective is to increase knowledge and awareness of vegetable producers, county faculty and crop advisors of research-based information on improved vegetable germplasm and alternative crops. Following the Extension Activities, two-thirds of the participants will gain additional knowledge on alternative crops, new vegetable variety options and cultivation practices. The medium-term objectives are to facilitate commercial adoption of improved vegetable cultivars with superior traits, cultivation practices, and alternative crops by coordinating initial commercial trials and by developing management recommendations. The long-term objective is to promote a sustainable vegetable industry based on solid science knowledge regarding vegetable cultivars adapted to Florida’s soil and climatic conditions, which will contribute to Florida’s economy. The full impact of the Extension activities will require an assessment longer than five years. Educational methods and activities • Evaluate the most promising lines into commercial-scale demonstration trials to begin the
final assessment for commercial potential according considering broadly-adaptability, market purpose: fresh-market, processing, and specialty-type varieties.
• Maintain close contact with growers, processors, and marketers (e.g., National Potato Council, US Potato Board, grower associations, processors, etc.) to establish priority areas cultivar selection efforts and to guide cultivar release.
• Clientele visits and consultations with county extension agents from St. Johns, Flagler, Putnam, Suwannee, Manatee, Sarasota and Brevard counties
• Organize and conduct field days
• Organize and deliver in collaboration with County Extension Faculty annual commodity meetings (e.g. field days, workshops) with growers and industry
• Publish educational material (EDIS, field day handouts, fact sheets, trade journal articles)
• Present research/extension outcomes at meetings Summary of Educational Efforts and Activities on new vegetable varieties
Activity Number Attendance Contact hours
Target: County Extension Faculty In-service training 1 13 204 Target: county extension agents, growers and vegetable industry Field days and meeting with topic irrigation 8 552 522
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On-farm trials and demonstrations 6 20 120 On-farm visits 6 20 86 Outcomes (Print and media) Refereed Journal Publications 7 - - Extension publication (EDIS) and book chapters 16 - - EDIS website hits (since 2011) 120,115 - - Potato cultivar released “Elkton” 1
Outcomes and impacts The short-term objective was to increase knowledge and awareness of vegetable producers, county faculty and crop advisors of research-based information on improved vegetable germplasm and alternative crops.
• Approximately 635 people have participated in field days and workshops regard to new cultivars of potatoes, pumpkins, broccoli and cabbage since 2010.
• Since 2011, the number of web visits on EDIS publications was greater 120,000 hits. In particular, the EDIS HS993 “Growing Potatoes in the Florida Home Garden” had more than 52,000 visits.
• The Extension program has maintained close contact with growers, processors, and marketers. Growers are introduced to new clones and varieties from the breeding programs through presentations at meetings, research reports, field days, demonstration trials and web sites. Growers have shared their perceptions of the strengths, weaknesses, and optimum production practices for new clones. The final decision for recommending and releasing a new variety is typically based on grower and/or industry input. The average attendance of our annual field days where we discuss the potato variety performance is about 40 people.
• Florida Potato Variety Trial Report is a publication released every year during our Annual Potato Meeting in April with all the results of the potato variety evaluation performed in by our Extension Program. Every attendant of the meeting receives a copy of the book. The book is also available at: http://hos.ufl.edu/extension/variety-trials/variety-trial-crops/potatoes
• Our Extension program is an active partner of the Eastern Potato Variety Development Project (NE1231) which direct collaborate with potato breeder. The project web site and interactive searchable database continues to grow in importance and popularity (http://potatoes.ncsu.edu/NE.html). The web site provides current contact information for project cooperators and recent research reports, as well as access to our regional variety database and a dynamic summary generator for all released varieties. This is a very important tool that helps the potato industry (growers, processors, breeder, etc) on the decision making.
The medium-term objectives were to facilitate commercial adoption of improved vegetable cultivars with superior traits, cultivation practices, and alternative crops by coordinating initial commercial trials and by developing management recommendations.
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• Potato cultivation practices: Determination of proper potato seed piece spacing: results
from three-year study of potato seed spacing indicated that by modifying the standard seed spacing of 8-inches to 10-inches did not affect marketable yield for chipping varieties Atlantic, Harley Blackwell and Elkton. By spacing the seed pieces at 10-in, grower save 20% in seed costs (not accounting for seed freight) which can be translated in addition revenue of $120-131/acre. For example, a 300-acre farm could save up to $39,000/season in seed costs.
• Broccoli: Two broccoli varieties were identified with superior yield and extended harvest season suitable for early spring harvest compared to the standard variety (Green Magic). With the identification of more adapted broccoli varieties to Florida conditions is fundamental for future expansion of the eastern broccoli industry and consequently reduce the dependency from west broccoli supply.
• Chipping Potato: Joint release of ‘Elkton’ by USDA and UF in 2012. ‘Elkton’ is a new processing potato cultivar adapted to Florida conditions and resistant to internal heat necrosis (serious problem for Florida growers). ‘Elkton’ has been tested at Hastings Research Farm since 1998 and in cooperation with local growers since 2011. ‘Elkton’ was named after the little berg in potato country in St. Johns County. In 2007, Florida grew 18,285 acres of processing potatoes. In 19 location-years of evaluation in Florida, ‘Atlantic’ (standard chipping variety) produced an average of 326 cwt/acre; Elkton produced 368 cwt/acre. At an average price of $15.5/cwt for chipping potatoes, if all the acreage were replaced with ’Elkton,’ growers would receive $11.9 M/year more than with ‘Atlantic.’ This estimation does not take into consideration the number of acres plowed under when Atlantic goes off-grade because of internal heat necrosis. On a per acre basis, replacing Atlantic with Elkton would generate $651 in revenue.
• Advanced selected potato clones with superior traits: The Eastern Potato Variety Development Project (NE1231) places special emphasis on breeding and selecting clones with resistance to late blight, early blight, scab, golden nematode races Ro1 and Ro2, Colorado potato beetle, potato virus Y (PVY), and heat necrosis. Every season my Extension program evaluates from 250 to 500 different clones and select the promising clones with potential for higher yield and improved traits. Breeding clones (n=112) in the University of Maine program showed high levels of late blight resistance during 2014 and have been further evaluated in Florida. Particularly, the clone BNC182-5 has shown moderate early blight resistance in Pennsylvania trials and have yielded 15% higher than standard chip potato Atlantic in Florida trials.
• Specialty potatoes: Papa criolla is a very popular potato in South America that can be mashed, boiled, baked or fried, and is very flavorful. The variety is a diploid, yellow and orange flesh potato with high levels of lutein and zeaxanthin selected by USDA-ARS. In collaboration with the USDA breeder, my program has tested more than 500 clones since 2013 for adaptability to Florida production systems and two promising clones were selected. In spring 2016, I started the commercial testing of these clones in collaboration with growers.
• Specialty potato markets: There has been an increase in demand for specialty potato market (Creamers, golf ball-sized potatoes) from Florida. These potatoes sell for a
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premium in grocery stores and in higher-end restaurants. Our Extension program has supported these growers with guidelines for N, fumigant and crop management. I have conducted demonstration trials at research farm and promoted field days. In spring 2016, about 400 acres have been cultivated with specialty potatoes varieties dedicated to alternative market.
• Chipping potatoes: About 50% of the chipping potato growers have exclusive production contracts with Frito Lay PepsiCo. to produce FritoLay chipping varieties. My Extension program evaluated Frito Lay early generation clones for yield and tuber. This effort directly helps the industry to fast track the selection of new potato varieties with improved traits and adaptability to Florida conditions.
24. CLINICAL SERVICE OR CLINICAL ACTIVITIES
N/A
25. SERVICE TO SCHOOLS
• Alachua County School Volunteer Program - Served as a Science Fair Judge for Lincoln Middle School. Dec. 2013.
• Alachua County School Volunteer Program - Served as a Science Fair Judge for Bishop Middle School. Nov. 2012.
26. MEMBERSHIP AND ACTIVITIES IN THE PROFESSION A. Memberships
International None
National • 2014 – present – Member, American Society of Agricultural and Biological Engineers • 2010 – present - Member, Potato Association of America • 2010 – present - Member, American Society for Horticultural Science • 2005 – present - Member, American Society of Agronomy
2006 – present - Member, Soil Science Society of America
Regional None
State • 2010 – present – Member, Florida State Horticulture Society.
Local None
B. Activities in the profession:
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International None
National • 2015 – Moderator for Breeding Section of Potato Association of America Annual
Meeting. Portland, ME. • 2014 – Organizer and Coordinator of Workshop at the American Society of
Horticultural Sciences Annual Meeting – Title: Irrigation Systems and Current Technologies Available for Use in Vegetable Crop Production. Orlando, FL.
• 2014 – President of NE1231 Meeting - Collaborative Potato Breeding and Variety Development Activities to Enhance Farm Sustainability in the Eastern US. Meeting in Virginia Beach, VA.
• 2013 – Vice President of NE1231 Meeting - Collaborative Potato Breeding and Variety Development Activities to Enhance Farm Sustainability in the Eastern US. Meeting in Portland, ME.
• 2012 – Secretary of NE1031 Meeting - Collaborative Potato Breeding and Variety Development Activities to Enhance Farm Sustainability in the Eastern US. Meeting in Orlando, FL.
• 2011, 2013 and 2014 – External Reviewer of Scientific paper for USDA - ARS
Regional None
State • 2016 – Judge for Graduate Student Competition for the 127th Florida State
Horticultural Society Annual Meeting. Stuart, FL. • 2015 – Florida State Horticultural Society – Nominating Committee • 2012 - Technical consultant to Florida Department of Agriculture and Consumer
Services - Office of Agricultural Water Policy for freeze protection requirements for irrigation.
• 2011 - 2013 – Reviewer for Florida Department of Agriculture and Consumer Services – Office of Agricultural Water Policy – Project and Report Reviewer
Local • 2011 – present: Participation on Technical Support Team (TST) for the Tri-County
Agricultural Area Partnership - Since 2011, I have been serving as a member of TST for the Water Management Partnership Project in collaboration with DACS, FDEP, St. Johns River WMD and USDA/NRCS. I have provided leadership on the determination of appropriate irrigation systems to be adopted to replace conventional seepage irrigation in northeast Florida. After new irrigation systems are installed in growers’ fields in the coming years, my extension program will focus on providing support to
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the growers though educational activities on the irrigation management to achieve the maximum irrigation water and fertilizer use efficiency and crop productivity.
• 2011 - UF-IFAS – Dean of Research Office – Review of Research Proposal – FY 2011-2012 (anonymous)
27. HONORS
International None
National • 2016 – Award “Search for Excellence in Young, Beginning, or Small
Farmers/Ranchers” of the National Association of County Agricultural Agents for the Extension Program, "Improving Adoption of Irrigation and Nutrient Best Management Practices: Drip Irrigation Schools” at National and Regional levels. Team: Mace Bauer, Aparna Gazula, Robert Hochmuth, Daniel Fenneman and Lincoln Zotarelli.
• 2013 - Best Paper Award for "Irrigation scheduling for green bell peppers using capacitance soil moisture sensors" of the Journal of Irrigation and Drainage Engineering of the American Society of Civil Engineers (ASCE) – Environmental and Water Resources Institute. (see section 16.f.).
Regional None
State None
Local • 2013 – Award for “Early Career Scientist Seed Funding” with the proposal entitled
“Alternative irrigation systems for water saving and enhanced fertilizer use efficiency for vegetable crops - an integrated approach” from the Dean for Research & Director of the Florida Agricultural Experiment Station – University of Florida.
• 2013 – Award for Professional Development from Dean for Research & Director of the Florida Agricultural Experiment Station – University of Florida. Funds to attend Crop Modeling Training 2013 DSSAT – International Training at University of Georgia, May 2013.
28. CHAIR’S LETTER
To be entered by the department administrator.
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29. DEAN’S LETTER To be entered by the department administrator. 30. SAMPLE LETTER TO EVALUATORS To be entered by the department administrator.
31. BIO-SKETCHES OF INDIVIDUALS WRITING SOLICITED LETTERS OF EVALUATION and LETTERS OF EVALUATION To be entered by the department administrator.
32. COPIES OF THE LAST FIVE ANNUAL LETTER OF EVALUATION To be entered by the department administrator.
33. FURTHER INFORMATION Publications in press, accepted for publication or submitted for peer-reviewed journal: a. Refereed Journals
Submitted (7):
1. Barrett, C.E.g, L. Zotarelli, L.G. Paranhosg, P. Dittmar, C.W. Fraisse, J.J. VanSickle. Economic feasibility of converting from seepage to plasticulture for cabbage production: where is the risk? Journal of Agricultural and Applied Economics. Submitted in July 2016.
2. Ferreira, C.J.B.f, L.Zotarelli, C.A. Tormena, L.R. Rensg, D.L. Rowland. Effects of water table management on least limiting water range and potato root growth. Agricultural Water Management. Submitted in June 2016.
3. Paranhos, L.G.g, Barrett, C.E.g, L. Zotarelli, T. Borisova, R.L. Darnell, K. Migliaccio. Cost benefit analysis of cabbage grown using a plasticulture and seepage-bare ground production system in Florida. HortTechnology. Submitted in June. 2016.
4. Ramírez, D.A., W. Yactayo, L.R. Rensg, J.L. Rolando, S. Palacios, F. Mendiburu, V. Mares, C. Barreda, H. Loayza, P. Monneveux, L. Zotarelli, A. Khan, R. Quiroz. Defining biological thresholds related to plant water status for monitoring water restriction effects: Stomatal conductance and photosynthesis recovery as key indicators in potato. Journal of Experimental Biology. Submitted March 2016.
5. Marchia E.C.S.p, L. Zotarelli, J.A. Delgado, D.L. Rowland, G. Marchie. Assessment of leaching losses from irrigated vegetable systems with a Nitrogen Index Model. International Soil and Water Conservation Research. Submitted in April 2016.
6. Mbabazi, D.g, K.W. Migliaccio, J. H. Crane, C.W. Fraisse, L. Zotarelli, K. T. Morgan. Evaluation of weather-based irrigation scheduling methods in avocado (Persea
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americana Mill.) orchards in south Florida. Transactions of the ASABE. Submitted in February 2016.
7. Mbabazi, D.g, K.W. Migliaccio, J. H. Crane, C.W. Fraisse, L. Zotarelli, K. T. Morgan, N. Kiggundu. An irrigation schedule testing model for optimization of the smartirrigation avocado app. Agricultural Water Management. Submitted in Mar. 2016.
Friday,July22,2016at3:09:07PMEasternDaylightTime
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Subject: JournalofAgriculturalandAppliedEconomics-ManuscriptIDAAE-2016-0067
Date: Friday,July22,2016at2:51:43PMEasternDaylightTime
From: JournalofAgriculturalandAppliedEconomics<[email protected]>
To: Zotarelli,Lincoln<[email protected]>
22-Jul-2016
DearDr.Zotarelli:
Thankyouforyoursubmission,AAE-2016-0067,enTtled
EconomicFeasibilityofConverTngfromSeepagetoPlasTcultureforCabbageProducTon:WhereistheRisk?
whichwasreceivedon22-Jul-2016.
PleasemenTontheabovemanuscriptIDinallfuturecorrespondence.Ifthereareanychangesinyourcontactdetails,pleaselogintoScholarOneManuscriptsath]ps://mc.manuscriptcentral.com/journalaaeandedityouruserinformaTonasappropriate.
YoucanviewthestatusofyourmanuscriptatanyTmebycheckingyourAuthorCentera`erloggingintoh]ps://mc.manuscriptcentral.com/journalaaeNormallyyoushouldexpecttowaitaboutthreemonthsbeforerefereeshavereturnedreportsandadecisioncanbemade.
ThankyouforsubmicngyourmanuscripttotheJournalofAgriculturalandAppliedEconomics.
Sincerely,
JAAEEditorialjaaeeditor@gmail.comJournalofAgriculturalandAppliedEconomicsh]ps://mc.manuscriptcentral.com/journalaae
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Monday,(June(20,(2016(at(12:57:48(AM(Hawaii:Aleu<an(Standard(Time
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Subject: AGWAT8704
Date: Sunday,0June019,020160at08:59:350PM0Hawaii@AleuBan0Standard0Time
From: Agricultural0Water0Management0([email protected]
To: Zotarelli,Lincoln
Dear0Dr.0Zotarelli
I0acknowledge0with0thanks0the0safe0receipt0of0the0manuscript0EFFECTS0OF0WATER0TABLE0MANAGEMENT0ON0LEAST
LIMITING0WATER0RANGE0AND0POTATO0ROOT0GROWTH0for0the0arBcle0type0Research0Paper.
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Agricultural0Water0Management
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Wednesday,June1,2016at9:26:44AMEasternDaylightTime
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Subject: HORTTECH-03444,NewManuscriptReceived
Date: Wednesday,June1,2016at9:25:21AMEasternDaylightTime
From: [email protected]<[email protected]>
To: Zotarelli,Lincoln<[email protected]>
RE:"CostBenefitAnalysisofCabbageGrownUsingaPlas]cultureandSeepage-BareGroundProduc]onSystemin
Florida"byLincolnZotarelli,LucasParanhos,CharlesBarreL,Ta]anaBorisova,RebeccaDarnell,andKa]Migliaccio
DearDr.LincolnZotarelli:
Weherebyacknowledgereceiptofthefollowingmanuscriptforpossiblepublica]onintheHortTechnologyon
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ThemanuscripthasbeenassignedmanuscriptnumberHORTTECH-03444.Pleaserefertothisnumberinall
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Wednesday,May4,2016at9:48:11AMEasternDaylightTime
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Subject: FW:HORTI16227
Date: Wednesday,May4,2016at9:47:49AMEasternDaylightTime
From: LincolnZotarelli<[email protected]>
-----OriginalMessage-----From:[email protected][mailto:[email protected]]OnBehalfOfScienOaHorOculturaeSent:Thursday,April21,20167:12AMTo:[email protected];Olmstead,MercyA<[email protected]>Subject:HORTI16227
Ref.:Ms.No.HORTI16227EffectofPineBarkVolumeandVenOlaOonforBellPepperProducOoninHighTunnelsScienOaHorOculturae
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Wednesday,)April)13,)2016)at)9:32:47)PM)Eastern)Daylight)Time
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Subject: Your%recent%submission%to%AGWATDate: Wednesday,%April%13,%2016%at%6:46:05%PM%Eastern%Daylight%TimeFrom: Agricultural%Water%Management%(sent%by%[email protected]
<[email protected]>)To: Zotarelli,Lincoln
Dear%Dr.%Lincoln%Zotarelli,
You%have%been%listed%as%a%CoSAuthor%of%the%following%submission:
Journal:%%Agricultural%Water%ManagementCorresponding%Author:%%David%RamirezCoSAuthors:%%Wendy%Yactayo,%MSc.;%Libby%Rens,%PhD;%Jose%L%Rolando;%Susan%Palacios,%Eng.;%Felipe%De%Mendiburu,MSc.;%Victor%Mares,%PhD;%Carolina%Barreda,%MSc.;%Hildo%Loayza,%MSc.;%Philippe%Monneveux,%PhD;%Lincoln%Zotarelli,PhD;%Awais%Khan,%PhD;%Roberto%Quiroz,%PhDTitle:%%Defining%biological%thresholds%associated%to%plant%water%status%for%monitoring%water%restricbon%effects:Stomatal%conductance%and%photosynthesis%recovery%as%key%indicators%in%potato
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An%Open%Researcher%and%Contributor%ID%(ORCID)%is%a%unique%digital%idenbfier%to%which%you%can%link%your%publishedarbcles%and%other%professional%acbvibes,%providing%a%single%record%of%all%your%research.
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Friday,(April(1,(2016(at(6:10:21(AM(Eastern(Daylight(Time
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Subject: Your%co'authored%submissionDate: Friday,%April%1,%2016%at%1:59:57%AM%Eastern%Daylight%TimeFrom: InternaFonal%Soil%and%Water%ConservaFon%ResearchTo: Zotarelli,Lincoln
Dear%Dr.%Zotarelli,
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Corresponding%Author:%Jorge%Delgado
Co'Authors:%Dr,%Edilene%C.S.%Marchi,%Dr,%Lincoln%Zotarelli,%Dr,%Diane%L.%Rowland,%Dr,%Giuliano%Marchi
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Subject: FW:Manuscriptsubmi1ed-ASABENRES-11763-2016Date: Thursday,March3,2016at8:51:32AMEasternStandardTimeFrom: Migliaccio,KaKW<[email protected]>To: Zotarelli,Lincoln<[email protected]>A1achments: A1achedstandardfile:*CopyrightPageChargeFormASABE-2016.pdf
-----OriginalMessage-----From:[email protected][mailto:[email protected]][email protected]:Monday,February1,20161:55PMTo:Mbabazi,Deanroy<[email protected]>;Migliaccio,KaKW<[email protected]>;Crane,JonathanH<[email protected]>;Fraisse,ClydeWilliam<[email protected]>;Zotarelli,Lincoln<[email protected]>;Morgan,KellyT<[email protected]>Subject:Manuscriptsubmi1ed-ASABENRES-11763-2016
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<[email protected]>)To: Zotarelli,Lincoln
Dear%Dr.%Lincoln%Zotarelli,
You%have%been%listed%as%a%CoSAuthor%of%the%following%submission:
Journal:%%Agricultural%Water%ManagementCorresponding%Author:%%KaW%MigliaccioCoSAuthors:%%Deanroy%Mbabazi;%Johnathan%H%Crane,%PhD;%Clyde%Fraisse,%PhD;%Lincoln%Zotarelli,%PhD;%Kelly%T%Morgan,PhD;%Nicholas%Kiggundu,%PhDTitle:%%An%irrigaWon%schedule%tesWng%model%for%opWmizaWon%of%the%SmarWrrigaWon%avocado%app
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Appendix 1. Summary of In-service trainings associated with Program Areas 1, 2 and 3 (2010-2016). Month/ Year
Prog. Area
Topic/Title/Organizers Location Attd. Role Contact Hours
11/2014 2 Soil testing for crop nutrient recommendations and management. IST
Balm, FL 25 Presenter 105
06/2014 1, 2 Irrigation management strategies and 4R plant nutrition. IST#30762. Co-organized with Dr. Kelly Morgan.
Clearwater and Balm, FL
60 Organizer 720
05/2014 1,2 Frontiers of sustainable agriculture. IST#30757 (Co-organized with Kelly Monaghan and Mickie Swisher.
Hastings and Citra, FL
17 Co-organizer and presenter
204
11/2013 1, 2, 3 Optimizing efficiency of irrigation and fertilization practices and evaluating the risks associated with climate change for vegetable crops - IST#30738
Gainesville, FL
13 Organizer and presenter
104
03/2013 1,2 Strategies to minimize salinity problems and optimizing crop production. IST #: 30688 – Co-organized with G. Lui).
Hastings, FL 20 Co-Organizer and presenter
40
01/2012 1 The second generation (G2) of Best Management Practices (BMPs) for crop production IST #: 30446 Co-organized with G. Lui and M.D. Dukes
Apopka, FL 29 Presenter 116
Total 164 1,289
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Appendix 2. List of presentations to Certified Crop Advisor (CCA) Training associated with Program Areas 1 and 2 (2010-2016). Month/ Year
Prog. Area
Topic/Title Location Attend. Role Contact Hours
04/2015 2 Nitrogen nutrition in potatoes
Statewide, 5 locations
74 Presenter 74
10/2011 1,2 Sustainable potato production
Statewide, 5 locations
71 Presenter 71
Total 145 145
Appendix 3. List of field days, meeting and presentation to growers associated with Program Area 1, 2 and 3 (2010-2016).
Month/ Year
Prog. Area
Activity/Description Local Attend. My Role Cont. Hs
Annually in April
1,2,3 Annual Twilight Potato School. Field day at Hastings Research Farm with demonstration of alternative irrigation systems, new potato varieties for chipping and table-stock market with potential adoption for Florida growing conditions. B. Wells; S. Lands; M. Warren; D. Dinkins (Co. Ext. Agents) and D. Gergela cooperate in this activity
Hastings, FL
2016 (55); 2015 (27); 2014 (24); 2013 (63); 2011 (50); 2010 (35)
Organizer and Speaker
597
Annually in March
1,2,3 Sustainable Cabbage and Crucifer Annual Field Day – Field day showing different strategies for irrigation and fertilization of cabbage. Demonstration of cole and cauliflower varieties. Participants: county extension agents: M. Warren, S. Lands, D. Cantliffe, D. Gergela
Hastings, FL
2014 (07); 2013 (15); 2012 (35); 2011 (32)
Organizer and Speaker
267
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Annually in October or November
1,2,3 Annual Alternative Crops and Pumpkin Production Field Day Presentation and demonstration of several varieties of pumpkins and squash with potential for cultivation in northeast Florida, cultural practices, fertilization and irrigation practices. S. Lands; M. Warren; D. Dinkins, county extension agents cooperate in this activity.
Hastings, FL
2014 (7);
2013 (12); 2012 (25); 2011 (32)
Organizer and Speaker
228
Annually in November
1,2,3 Fall Potato School – Series of Presentations about potato potato diseases and insects (Zebra chips), irrigation and nutrient management, soil survey and mapping. NRCS Web Soil Survey access and use soil maps of “your farm” on planning and management of regular farm operations
Hastings, FL
2012 (50); 2011 (30)
Organizer and Speaker
240
Annually in November
1 Drip Irrigation School. Design, management and maintenance of drip irrigation systems. Michael Alligood and A. Gazula (Alachua Co. Ext.) cooperated with this activity
Live Oak, FL
2014 (38); 2012 (45)
Speaker 172
04/2016 1 Watermelon field day, drip irrigation and managment
Citra, FL 64 Speaker 192
03/2016 1,2 Irrigation and fertilizer Field Day for Potatoes and other vegetables
Parish, FL
25 Speaker 75
11/2015 1,3 Guidelines for management of irrigation drainage tile systems - Optimization of field soil moisture for plant growth/yield and research
Hastings, FL
18 Speaker 36
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update: potato nitrogen management under irrigation drainage tile.
01/2016 1,3 Meting with growers about N fertilizer and varieties of cabbage
Hastings, FL
5 Organizer and Speaker
15
03/2015 1,3 Abraham Baldwin Agricultural School – Cabbage and potato production management and variety development and testing.
Bunnell and Hastings, FL
15 Speaker 60
11/2014 1,2 Workshop for Extension Agents in Mozambique. Four day workshop was organized about irrigation and nutrient management for horticultural crops for extension agents from Mozambique.
Maputo, MZ
44 Speaker and Organizer
1760
08/2013 1,2 EPAF Horticulture Tour. The goal of this tour was to demonstrate and promote discussion about advanced techniques for irrigation and nutrient management among county extension agents. Participants: county extension agents: D. Cantliffe; D. Dinkins; D. Gergela; graduate students: C. Barrett and C. Christensen
Hastings, FL
12 Organizer and Speaker
36
12/2012 1,2 Young Farmers Educational Series. Irrigation and Nutrient Management of Vegetable Crops. Educational program targeting new generation of young farms
Hastings, FL
22 Speaker 22
12/2012 1,2 Workshop for Extension Agents in Mozambique. Two day workshop was organized
Maputo, MZ
35 Speaker and Organizer
560
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about irrigation and nutrient management for horticultural crops for extension agents from Mozambique.
08/2012 1,2 Salinity Meeting. Effect of salinity on potato production. Discussion of strategies to mitigate the effect of salts on potato production
Bunnell, FL
28 Organizer and Speaker
84
07/2012 1 Small Farms Conference. Irrigation and nutrient management. M. Alligood and D. Fenneman (Madison Co. Ext.) cooperated with this activity
Orlando, FL
75 Speaker 150
05/2012 1 FAWN Irrigation School for Citrus Growers - State-wide Educational Program. Citrus irrigation. Dr. K. Morgan and R. Lusher cooperated with this activity
Arcadia, FL
45 Speaker 90
04/2012 1 FAWN Irrigation School for Sugarcane Growers - State-wide Educational Program. Dr. K. Morgan and R. Lusher cooperated with this activity
Belle Glade, FL
32 Speaker 64
02/2012 1,2,3 Adaptation Exchange Workshop. Microirrigation: adapting to climate variability and change and improving resource-use efficiency. Field day with interactive events on how microirrigation can reduce climate related risks. Dr. C. Fraisse – coordinator
Quincy, FL
70 Speaker 70
10/2011 2 Vegetable and small fruit nutrition management workshop - Cucurbit fertilization
Balm, FL 50 Speaker 80
05/2011 1 FAWN Irrigation school - Palm 8 Speaker 8
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state-wide educational program. Irrigation management. Dr. K. Morgan and R. Lusher cooperated with this activity
Beach, FL
07/2010 1 FAWN Irrigation school - state-wide educational program. Irrigation management
Hillsborough Co., FL
35 Speaker 35
Total 1021 5,005
Appendix 4. List of on-farm demonstrations associated with Program Area 1, 2 and 3 (2010-2016). On-Commercial Farm Demonstrations is the main strategy for my extension program regard to fertilizer and irrigation management. On-farm demonstrations are conducted by growers (active participants) under my direct supervision in addition to the supervision of the County Extension Faculty. The on-farm demonstrations are designed specifically to teach the grower who is conducting the new technique or method, which in turn demonstrates the technology’s effectiveness proven by previous research that benefits succeeding growers. The demonstration is an effective way of disseminating knowledge because it allows growers to see and compare for themselves the results of different treatments.
Year Prog. Area
Description of Field Demonstration
Demonstration Area
Location Impact
2013-2014
1 Use of plastic mulch and drip irrigation with high density cabbage production in organic and conventional
2 acres (2013) 5.5 acres (2014)
Flagler Co. Greene Farms
Increase awareness of improved methods for nutrient and water management
2011-2012
1 the use of subsurface drip irrigation (SDI) to enhance seepage irrigation for potato production
5 acres (2011) 70 acres (2012)
St. Johns Co. Riverdale Farms
Grower continue expanding area
2011-2012
1 soil moisture sensor 5 acres St. Johns Co. Riverdale Farms
Grower adopted the technology
2010-2013
1,2 use of drip tape to directly irrigate and fertigate potatoes
2 acres (2010) 5 acres (2011) 5 acres (2012) 8 acres (2013)
St. Johns Co. Blue Sky Farms and Tater Farms
Grower became aware of the technology
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and its challenges
2013 2 Use of slow release fertilizer rates and banding fertilizer applicator
2.5 acres Putnam Co. Singleton’s Farm
Grower adopt banding application
2010-2014
2 Potato fertilizer rate and timing BMP and banding fertilizer applicator
42 acres (2010) 63 acres (2011) 63 acres (2012) 14 acres (2013) 14 acres (2014)
St. Johns Co. Picolata Farms, William Revels, Blue Sky, Tater Farms, Robert Revels, Parker Farms, Smith Farms
All grower adopt banding application
2012 1 Commercial field evaluation of potato nutritional status and salinity effects
45 acres St. Johns Co.William Revels
Grower modified wells to reduce effect of salt
2014 3 Broccoli variety trial in grower’s fields
0.5 acre St. Johns Co. Smith Farms
Increase of variety
2013 3 Chipping and tablestock potatoes
1.0 acre Suwannee. Co. Black Gold Farms
Increase of variety
2011 2013
3 New chipping variety for Florida – Elkton
0.3 acre (2011) 0.4 acre (2012) 0.5 acre (2013)
St. Johns Co.William Revels and Smith Farms
Increase of variety
2011 1 Commercial cabbage losses evaluation
20 acres St. Johns Co.Barnes Farms
Identification of causes of losses
2010-2012
3 temperature monitoring on blueberry cultivation in high tunnels on grower’s field
25 acre Alachua Co. Straughn Farms
Grower has improved the temperature management inside the tunnels
Total 397.5 acres 20 Farms
Appendix 5. List of clientele visits and consultations associated with Program Area 1, 2 and 3 (2010-2016).
Issue Prog. Area
Activity/ issue, location Contact hours
External support
Potato 3 Bull’s Hit Farms; L&M Farms and Byrnes 3 -
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Varieties Farms. Provide support to potato variety options for fresh market – field tuber sprouting
Irrigation 1 Brian Jones (potato grower) and Certified Ag Resources (soil moisture company), St. Johns Co., orientation on the use of soil moisture sensor to control irrigation on subsurface drip irrigation
13 A. Beyer; D. Cantliffe; B.S. Taylor
Irrigation and nutrient – field demonstration
1,2 Tommy Miller, Flagler Co., Drip irrigation for cabbage systems – establishment and conduction of demonstration plots in Fall
144 A. Beyer; C. Barrettg; L. Paranhosg
Irrigation 1 Mark Jones, St. Johns Co., Water table monitoring on tile drainage system; subsurface drip irrigation. Federal Point, FL.
12 D. Cantliffe; S. Lands; S. Taylor; P. Moran
Strawberry variety, crop production and irrigation
1,3 Strawberry growers in Namaacha Region in Mozambique. Variety selection and irrigation recommendation. Namaacha, Mozambique.
8 E. Gelcer; H.Silva; F. Rezende; C. Ecole.
Irrigation 1 Tater Farms, St. Johns Co., Soil moisture sensor utilization in center pivots for sod production
4 P. Moran
Salinity 1,2 Revel Farms, St. Johns Co., Salinity problems in irrigation wells
48 S. Lands; M. Paranhos; G. Bossip; C. Barrettg.
Irrigation 1 Tater Farms, St. Johns Co., Drip potatoes FL
4 P. Moran
Water quality 2 Tater Farms, Eric Hjort , St. Johns Co., Measurements of EC and pH of irrigation water and ditches
16 P. Moran
Irrigation 1 Tater Farms, , St. Johns Co., Drip irrigation of potatoes irrigation water and ditches
8 -
Irrigation 1,2 Tater Farms, Eric Hjort, St. Johns Co., Irrigation blueberries, Hastings, FL
8 S. Sargent
Irrigation demonstration
1 Danny Johns, St. Johns Co., drip irrigation and fertigation on potatoes
40 M. Clark; D. Cantliffe; M. Warren; S. Lands
Irrigation 1 Mark Jones, St. Johns Co., tile drainage systems for potatoes
8 M. Clark; D. Cantliffe M. Warren; S. Lands
Irrigation demonstration
1 Richard Jones, St. Johns Co., assistance on setting up subsurface drip irrigation for potato
24 D. Cantliffe; M. Warren; S. Lands
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Demonstration 2 Danny Johns and Richard Jones, St. Johns Co., Best Management Trials
8 Steve Lands
Irrigation demonstration
1 Richard Jones, St. Johns Co., Subsurface drip irrigation installation
4 S. Lands; S. Taylor
Irrigation 1 Alan Jones, Manatee Co., Center pivot irrigation
16 B. Santos; G. Liu
Water quality 1,2 Mark Barnes and Charles Owen, , St. Johns Co., Water quality drip issues
16 S. Lands
Crop management
3 Alto Straughn, Alachua Co., Blueberry Tunnels – Temperature monitoring, temperature survey maps, temperature datalogger downloading, result presentation
16 D. Cantliffe; M. Paranhos; A. Gazula; C. Barrettg
Crop management
3 Combined visit on protected Agriculture, Putnam Co.
4 D. Cantliffe; S. Lands; S.Taylor
Crop management
3 Straughn Farms, Alachua Co., Blueberry tunnels evaluation of irrigation use
4 A. Gazula; C. Barrettg
Fertilizer demonstration
2 Steven Singleton, Putnam Co., best management practices and slow release fertilizer
16 S. Lands; L. Rensg; D. Gergela
Fertilizer demonstration
2 Prem Parker Farms, , St. Johns Co., BMP and timing demonstration trials
40 S. Lands, L. Rensg; D. Gergela
Fertilizer demonstration
2 Michael Revels Farms, , St. Johns Co., BMP and timing demonstration trials
40 S. Lands; L. Rensg; D. Gergela
Fertilizer demonstration
2 Revels Farms, , St. Johns Co., BMP and timing demonstration trials
120 S. Lands; L. Rensg; D. Gergela
Fertilizer demonstration
2 Smith Farms, St. Johns Co., BMP and timing demonstration trials
40 S. Lands; L. Rensg; D. Gergela
Fertilizer demonstration
2 Picolatta Farms, St. Johns Co., BMP and timing demonstration trials
40 S. Lands; L. Rensg; D. Gergela, D. Cantliffe
Irrigation demonstration
1,2 Tater Farms, Chris Johns, St. Johns Co., Drip irrigation management and fertigation
56 M. Paranhos; S. Taylor; S. Lands; J. Reyes-Cabrerag
Crop management
1 Mark Hodges, Alachua Co., Blueberry farm use of soil moisture sensors for irrigation
8 -
Crop management,
3 Willian Revels Farms, John Revels, St. Johns Co., Potato rotten seeds, germination
18 N. Dufault; D. Gergela; M.
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germination issue
issues, diagnostic and recommendation Warren; S.; Lands; S. Taylor; M. Paranhos
Crop management, germination issue
3 Matt Seay Farms, Flagler Co., Potato rotten seed diagnostic and recommendation
12 D. Gergela; M. Warren; S. Lands; S. Taylor; M. Paranhos
Crop management
3 John Revels, St. Johns Co., Plant leave collection, suspected Early Blight
8 D. Gergela
Seed quality 3 John Revels, Arley Smith, St. Johns Co., Rotten potato seeds
8 S. Lands; N. Dufault
Postharvest 3 Blue Sky Farms, St. Johns Co., Potato postharvest
16 S. Sargent
Total 815 h
