- 1. Timingof winter/fallplanting Water needs vs.water use Faster
establishmentwith lowermaintenance TRWG-Z over hand-watering
2. Clarify potential benefits of TRWG-Zover hand-watering
Determine if single application ( or12weeks of continual moisture)
couldsuccessfully establish plants Determine if photosynthesis
prior todormant season would have substantialbenefit to plant
establishment Define water saving using TRWG-Z 3. TRWG-Z,
(carboxymethylcellulose cross-linked polymer) Potable water City of
Santa Rosa, CA Zinc Sulfate essential to many enzyme systems in
plants contributes to production of growth regulators most
available form of zinc to plants Glacial Acetic Acid naturally
occurring auxin induce elongation in shoot cells improve uptake of
minerals 4. Species Quercus agrifolia Quercus lobata Planting times
August 4, 2009 September 2, 2009 October 2,2009 Container size D-40
Climate-Mediterranean10- 10-Month9-Aug9-Sep9-Oct9-Nov9-Dec10-Jan
10-Feb10-Apr10-Jun 10-JulMar MayHigh 102F101F87F 80F 65F 62F 71F
81F 82F 83F 97F 92FLow47F 40F 38F 30F 21F 32F 34F 33F 34F 35F 45F
45FPrecip 0.11 in. 0.49 in. 1.81 in. 4.31 in. 4.50 in. 6.25 in.
6.08 in. 4.71 in. 1.67 in. 0.83 in. 0.19 in. 0.06
inwww.accuweather.com/us/ca/santa-rosa/95401/forecast-month.asp 5.
Each plot 32 plants 10X18 20 with TRWG-Z -12 hand-watered August
single application TRWG Hand-watered : 12 weeks, 2.5 gallon each
week Last hand-watered date was October 7 September single
application of TRWG-Z Hand-watered: 12 weeks, 2.5 gallon each week
October single application of TRWG-Z Hand-watered: 12 weeks, 2.5
gallon each week(except during active precipitation) 6. Two
Harvests June 23, 2010 November 27, 2010 Three-weeks of drying time
Weighed on calibrated scale3025 Quercus agrifolia20 June 2010
Harvest15 10 months after planting 1050 Hand-water TRWG-Z 7.
TRWG-ZHand-watered15 grams 9 gramsQuercus agrifolia Planted
August2009, harvested and weighed June 2010 8. Plant species
Hand-watered TRWG-ZQuercus agrifolia815Quercus lobata1426Average
112010-month old plants 9. Left: TRWG-Z 78(g) Right: Hand-watered
37(g)Quercus agrifolia-15 month old plants 10. August 89(g)
September 12 (g) October 9(g)15 month old plant 14 month old plant
13month old plant 11. Quercus lobata Quercus agrifoliaTRWG-Z left /
Hand watered right TRWG-Z left / Hand watered right 42-inches
60-inches24-inches 36-inches 12. CaliperHeight2.5120 100 2801.560
CaliperHeight 1400.520 0 0August September October August September
October 13. Photos takenAugust 23, 2012 14. Latesummer planting
appears to allowsufficient photosynthesis resulting in
amplecarbohydrate storage for spring plantgrowth Zinc and Glacial
Acetic Acid contribute tothe production of essential growth
overpotable water with no nutrients Using TRWG-Z contributes to
overall waterefficiency No plants received water after 12 weeks
-1fatality-continual moisture appearsnecessary 15. TRWG-ZHAND-WATER
Per Plant Per plant 2.5 gallons at planting 2.5 gallons per week 1
Quart of TRWG-Zfor 12 weeks = 30 12 weeks = 2.75gallons
gallonsWater saving per plant: 92% 16. EconomicsWater
efficiencyUnpredictable weatherSuccess criteria 17. (1993). Zinc,
needed throughout the root zone. Micronutrient newsand information,
Vol. 13(No. 4). (1994). Zinc-the most important micronutrient.
Micronutrient newsand information, Vol. 14(No. 3) Amrani, M.,
Westfall, D. G., & Peterson, G. A. (1993). Zinc
plantavailability as influenced by zinc fertilizer sources and zinc
watersolubility. Oxford: Clarendon Press. Arteca, R. N. (1996).
Plant growth substances, Principles andapplications. New York, NY:
Chapman and Hall. Mordvedt, J. J., Cox, F. R., Shuman, L. M., &
Welch, R. M. (1991).Micronutrients in agriculture (2nd ed.).
Madison, WI: Soil ScienceSociety of America. Wheeler, J., PhD,
& Peterson, K. (2006). DRiWATER plus, a newproduct (cross
linked carboxymethylocellulose gel with zinc andacetic acid).
Tucson, AZ: Research conducted at Acre Inc. Source for Santa Rosa
Temp. &
Precip:*http://www.accuweather.com/us/ca/santa-rosa/95401/forecast-month.asp
