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***********************************************************************************************
* Filename: Maize.CRP
* Contents: SWAP 3.2 - Data for detailed crop model
***********************************************************************************************
*c Grain maize (Zea mays L.)
***********************************************************************************************
*** PLANT GROWTH SECTION ***
***********************************************************************************************
* Part 1: Crop development
CSTART = 1 ! Start time step of crop growth
CEND = 9073 ! End time step of crop growth
TSTEP = 0.5 ! Time step of the simulation, [0..1 hour]
TSUMEA = 950.00 ! Temperature sum from emergence to anthesis, [0..10000 C, R]
TSUMAM = 880.00 ! Temperature sum from anthesis to maturity [0..10000 C, R]
* List increase in temperature sum [0..60 C, R] as function of daily average temp. [0..100 C, R]
* TAV DTSM (maximum 15 records)
DTSMTB =
0.00 0.00
10.00 0.00
30.00 20.00
45.00 20.00
* End of Table
DVSEND = 2.00 ! development stage at harvest [-]
***********************************************************************************************
***********************************************************************************************
* Part 2: Initial values
TDWI = 20.000 ! Initial total crop dry weight [0..10000 kg/ha, R]
LAIEM = 0.3 ! Leaf area index at emergence [0..10 m2/m2, R]
PHEM = 0.1 ! plant height at emergence [0..10 m, R]
RGRLAI = 0.05! Maximum relative increase in LAI [0..1 m2/m2/d, R]
***********************************************************************************************
***********************************************************************************************
* Part 3: Green surface area
SPA = 0.0000 ! Specific pod area [0..1 ha/kg, R]
SSA = 0.0000 ! Specific stem area [0..1 ha/kg, R]
SPAN = 35.00 ! Life span under leaves under optimum conditions, [0..366 d, R]
LAICR = 6.00 ! The criteriation of LAI which affect the potential death rate due to self-shading, [0..10 m2/m2, R]
TBASE = 10.00 ! Lower threshold temperature for ageing of leaves ,[-10..30 C, R]
* List specific leaf area [0..1 ha/kg, R] as function of devel. stage [0..2, R]
* DVS SLA (maximum 15 records)
SLATB =
0.0000 0.0015
0.3000 0.0015
1.0000 0.0015
1.2500 0.0015
2.0000 0.0015
* End of Table
***********************************************************************************************
***********************************************************************************************
* Part 4: Plant height growth
STN = 40000 ! Number of stems [1..10000 /ha, I]
STD = 25.0 ! Density of stems [0.1..10 kg/m3, R]
PHCoeff = 1.22 ! Coeffcient of plant height, [1..2 , R]
* List specific stems radius [0..1 m, R] as function of devel. stage [0..2, R]
* DVS STR (maximum 15 records)
STRTB =
0.0000 0.020
0.6000 0.021
1.3000 0.025
2.0000 0.025
* End of Table
***********************************************************************************************
***********************************************************************************************
* Part 5: Conversion of assimilates into biomass
*
CVL = 0.6900 ! Efficiency of conversion into leaves, [0..1 kg/kg, R]
CVO = 0.7500 ! Efficiency of conversion into storage organs, [0..1 kg/kg, R]
CVR = 0.6900 ! Efficiency of conversion into roots, [0..1 kg/kg, R]
CVS = 0.7200 ! Efficiency of conversion into stems, [0..1 kg/kg, R]
***********************************************************************************************
***********************************************************************************************
* Part 6: Partitioning
* List fraction of total dry matter increase partitioned to the roots [kg/kg, R]
* as function of development stage [0..2 -, R]
* DVS FR (maximum 15 records)
FRTB =
0.00 0.90
0.30 0.50
1.00 0.00
2.00 0.00
* End of table
* List fraction of total above ground dry matter incr. part. to the leaves [kg/kg, R]
* as function of development stage [0..2 -, R]
* DVS FL (maximum 15 records)
FLTB =
0.0000 0.6000
0.7000 0.5000
0.7500 0.1000
0.9000 0.1000
1.0000 0.1000
1.0500 0.0000
2.0000 0.0000
* End of table
* List fraction of total above ground dry matter incr. part. to the stems [kg/kg, R]
* as function of development stage [0..2 -, R]
* DVS FS (maximum 15 records)
FSTB =
0.0000 0.4000
0.7000 0.5000
0.7500 0.9000
0.9000 0.9000
1.0000 0.9000
1.0500 0.0000
2.0000 0.0000
* End of table
* List fraction of total above ground dry matter incr. part. to the st. organs [kg/kg, R]
* as function of development stage [0..2 -, R]
* DVS FO (maximum 15 records)
FOTB =
0.0000 0.0000
0.9000 0.0000
1.0000 0.0000
1.0500 1.0000
2.0000 1.0000
* End of table
***********************************************************************************************
***********************************************************************************************
* Part 7: Death rates
PERDL = 0.010 ! Maximum rel. death rate of leaves due to water stress [0..3 /d, R]
* List relative death rates of roots [kg/kg/d] as function of dev. stage [0..2 -, R]
* DVS RDRR (maximum 15 records)
RDRRTB =
0.0000 0.0000
1.5000 0.0000
1.5001 0.0200
2.0000 0.0200
* End of table
* List relative death rates of stems [kg/kg/d] as function of dev. stage [0..2 -, R]
* DVS RDRS (maximum 15 records)
RDRSTB =
0.0000 0.0000
0.9000 0.0020
1.2500 0.0020
2.0000 0.0030
* End of table
***********************************************************************************************
***********************************************************************************************
* Part 8: Root density distribution and root growth
*
* List relative root density [0..1 -, R], as function of rel. rooting depth [0..1 -, R]:
* RD RDC (maximum 11 records)
RDCTB =
0.00 1.00
1.00 1.00
* End of table
*
RDI = 10.00 ! Initial rooting depth, [0..1000 cm, R]
RRI = 1.20 ! Maximum daily increase in rooting depth, [0..100 cm/d, R]
RDC = 80.00 ! Maximum rooting depth crop/cultivar, [0..1000 cm, R]
*
************************************************************************************
* End of .crp file !