Upload
buffy-strong
View
66
Download
0
Tags:
Embed Size (px)
DESCRIPTION
University of Thessaly Department of Agriculture, Crop Production & Agricultural Environment Laboratory of Agronomy and Applied Crop Physiology (UTH) Greece. BioKenaF: A crop growth simulation model for kenaf. September “27-30” 2006 Madrid, Spain - PowerPoint PPT Presentation
Citation preview
BioKenaF: A crop growth simulation model for kenaf
September “27-30” 2006
Madrid, Spain“A Crop Growth Dynamic Simulation Model for Kenaf”
University of Thessaly
Department of Agriculture, Crop Production &
Agricultural Environment
Laboratory of Agronomy and Applied Crop Physiology
(UTH) Greece
Model structure
Leaf Photosynthesis
Canopy Photosynthesis
Respiration
Dry Matter distribution
Water balance routine
Leaf Photosynthesis
The relation between available radiation and CO2 gross assimilation by a single leaf is described by an asymptotic exponential relation
FG = AMAX * ( 1 − EXP(− EFF*PAR/AMAX) )
FG: assimilation in kg(CO2)ha-1(leaf)h-1
PAR: photosynthetically active radiation(J m-2s-1)
EFF: is the light use efficiency in kg ha-1h-1/J m-2s-1
AMAX: maximum rate of CO2 assimilation in kg(CO2)ha-1(leaf)h-1.
Canopy Photosynthesis
EXTRA TERRESTIAL IRRADIANCE
GLOBAL RADIATION
PAR
PARDIR
PARDIF
VIS
As. Rate of sunlit leaves
As. Rate of shadedleaves
TotalAssimilation
Rate
Integration
Respiration
Maintenance respiration (MRR): Energy consumed to meet maintenance requirements.
MRRorg=Rorg*Sorg
Growth respiration (EC): Respiration providing energy for the conversion of primary photosynthesis into structural plant materials like, proteins, cellulose, fats, lignin.
DWIorg=DailyGainorg*EC
Maintenance respiration (MRR): Energy consumed to meet maintenance requirements.
MRRorg=Rorg*Sorg
Growth respiration (EC): Respiration providing energy for the conversion of primary photosynthesis into structural plant materials like, proteins, cellulose, fats, lignin.
DWIorg=DailyGainorg*EC
Dry matter distribution (Daily basis)
Total Assimilation
Rate
CarbohydrateAs. Rate(FGASS)
Rate of NET Potential
As.
Maintenance Respiration
DWI LEAF - ECleaf
DWI STEM - ECStem
DWI SHEATH - ECSheath
DWI ROOTS - ECRoot
DWI S. ORGANS -ECSO-
* FRorg
DVSDVS
BioKenaF: Relation diagramLightTemp
Photosynthesis
Developmentrate
Developmentstage
Partitioningcoefficients
Assimilatepool
Maintenancerespiration
BIOMASS
STEMS
ST. ORGANS
PETIOLES
ROOTS
LEAVES
LAI
Gro
wth
CONV.EFF.
SLA
BioKenaF: Relation Diagram
Application
HARDWARE
• Processor: AMD ATHLON XP 2800+
• Motherboard: Gigabyte 7N400-Pro
• RAM: 1 GB 400 Mhz
• Hard disk: W.Digital 160 GB
• Graphics: GA 6600 GT 128 MB Ram
SOFTWARE
• Microsoft Visual Basic 6
• Microsoft Excel 2000
• Helexis Icon Catcher v3.0
• Microsoft Paint for windows XP
SIMULATION TIME
4 sec
13 sec including exportation to MS Excel
BioKenaF application
Interface
Input Form
BioKenaF application
Soil Type
Input Form
BioKenaF application
Irrigation
Data
Manager
BioKenaF application
Editor of Meteorological
Data Files
Results
total
stem
leaves
petioles
Palamas- Karditsa (Greece) Year 2003, 100% Irrigation
Results
Palamas- Karditsa (Greece) Year 2003, 50% Irrigation
0
5000
10000
15000
20000
25000
150 200 250 300 350J. Day
Kg
r / h
a
total
stem
leavespetioles
Results
Palamas- Karditsa (Greece) Year 2003, 25% Irrigation
0
5000
10000
15000
20000
25000
150 200 250 300 350
J. Day
Kg
r /
ha total
stem
leavespetioles
Results
Italy Bolognia Year 2003, potential productivity
Sowing date 19/6/2003
0
5000
10000
15000
20000
25000
150 200 250 300 350
J. DayK
gr
/ h
a
Sowing date 19/5/2003
0
5000
10000
15000
20000
25000
150 200 250 300 350
J. Day
Kg
r / h
a
Results
Italy Bolognia Year 2004, potential productivity
2004 S1
0
5000
10000
15000
20000
25000
150 200 250 300 350 400
J. Day
Kgr /
ha
2004 S2
0
5000
10000
15000
20000
25000
150 200 250 300 350 400
J. Day
Kgr /
ha
Results
totalstem
leavespetioles
France- Nicae Year 2005, potential productivity
0,00
5000,00
10000,00
15000,00
20000,00
25000,00
150 200 250 300 350
J. Day
Kg
r /
ha
Results
Greece Year 2003
Results
Greece Year 2004
Results
Greece Year 2005
Results
Bolognia Year 2003
Results
Bolognia Year 2003
Results
France Year 2004
Results
Summary
Missing Data
WheatherLocation Year TMAX TMIN Radiation Precipitation Wind RH Day of Emer. Harvests Irrigation Soil Type G. Water
Portugal 2003 X X X X X X X X X X X
2004 X X X X X X X X X X X
2005 X X X
Catania 2003 X X X X
2004 Problem
X X
2005 X X
Spain 2003 X X X X X X
2004 X X X X X X
2005 X X X X X X
Greece 2003 ? X X X X X
CETA 2004 ? X X X X
2005 X X ? X X X X X X X
France 2003 X X X X X X X X X X
2004 X X X X X X X X X X
Thank you for your attention !