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maize.yaml
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/
maize.yaml
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# Crop parameter file for use with the PCSE/WISS implementations of the WOFOST
# crop simulation model
#
# Creation date: 2017-07-06
#
# Contact: Allard de Wit (allard.dewit@wur.nl)
# Wageningen University and Research Centre
# PO Box 47, 6700 AA Wageningen, The Netherlands
#
# More information: - http://pcse.readthedocs.io
# - http://www.wageningenur.nl/wofost
# - https://github.com/ajwdewit/WOFOST_crop_parameters
#
Version: 1.0.0
Metadata: &meta
Creator: Allard de Wit
Contributor: E.R. Boons-Prins, G.H.J. de Koning, CA. van Diepen, F.W.T. Penning de Vries
Contact: allard.dewit@wur.nl
Publisher: Wageningen Environmental Research
Title: Parameter sets for the WOFOST7.2/WOFOST8.0 model for simulating maize
Date: 2022-02-13
Language: EN
Format: YAML
Subject: WOFOST parameters for maize
Description: This file provides parameters for one or more maize varieties calibrated on
local experimental data or regional cropping calendars
Identifier:
Relation:
Source: https://edepot.wur.nl/308997
Type: Report
Coverage:
Region: Europe, global
Rights: European Union Public License (EUPL)
Keyword: maize; Zea mays
CropParameters:
GenericC3: &GenericC3
CO2EFFTB:
- [40., 0.00,
360., 1.00,
720., 1.11,
1000., 1.11,
2000., 1.11]
- multiplication factor for EFF to account for an increasing CO2 concentration
- ['PPM', '-']
CO2TRATB:
- [40., 0.00,
360., 1.00,
720., 0.9,
1000., 0.9,
2000., 0.9]
- multiplication factor for maximum transpiration rate TRAMX to account for an increasing CO2 concentration
- ['PPM', '-']
CO2AMAXTB:
- [40., 0.00,
360., 1.00,
720., 1.60,
1000., 1.90,
2000., 1.90]
- multiplication factor for AMAX to account for an increasing CO2 concentration
- ['PPM', '-']
GenericC4: &GenericC4
CO2EFFTB:
- [40., 0.00,
360., 1.00,
720., 1.00,
1000., 1.00,
2000., 1.00]
- multiplication factor for EFF to account for an increasing CO2 concentration
- ['PPM', '-']
CO2TRATB:
- [40., 0.00,
360., 1.00,
720., 0.74,
1000., 0.74,
2000., 0.74]
- multiplication factor for maximum transpiration rate TRAMX to account for an increasing CO2 concentration
- ['PPM', '-']
CO2AMAXTB:
- [40., 0.00,
360., 1.00,
720., 1.00,
1000., 1.00,
2000., 1.00]
- multiplication factor for AMAX to account for an increasing CO2 concentration
- ['PPM', '-']
EcoTypes:
tropical_maize: &tropical_maize
<<: *GenericC4
#
# EMERGENCE
#
TBASEM:
- 10.0
- Lower threshold temperature for emergence
- ['C']
TEFFMX:
- 30.0
- maximum effective temperature for emergence
- ['C']
TSUMEM:
- 70
- temperature sum from sowing to emergence
- ['C.d']
#
# PHENOLOGICAL DEVELOPMENT
#
IDSL:
- 0
- indicates whether pre-anthesis development depends on temperature (=0), plus daylength (=1) , plus vernalization (=2)
- ['NA']
DLO:
- 1.0
- optimum daylength for development
- ['hr']
DLC:
- 0.0
- critical daylength (lower threshold)
- ['hr']
TSUM1:
- 750
- temperature sum from emergence to anthesis
- ['C.d']
TSUM2:
- 859
- temperature sum from anthesis to maturity
- ['C.d']
DTSMTB:
- [ 0.0, 0.0,
8.0, 0.0,
30.0, 22.0,
35.0, 22.0]
- daily increase in temperature sum as function of daily average temperature
- ['C', 'C']
DVSI:
- 0.0
- Initial development stage
- ['-']
DVSEND:
- 2.0
- development stage at harvest (= 2.0 at maturity)
- ['-']
VERNBASE:
- 14.0
- Base vernalization requirement
- ['d']
VERNSAT:
- 70.0
- Saturated vernalization requirement
- ['d']
VERNDVS:
- 0.30
- Critical DVS for vernalization to switch off
- ['-']
VERNRTB:
- [-8.0, 0.0,
-4.0, 0.0,
3.0, 1.0,
10.0, 1.0,
17.0, 0.0,
20.0, 0.0]
- Temperature response function for vernalization
- ['C', '-']
#
# INITIAL STATES
#
TDWI:
- 20.00
- initial total crop dry weight
- ['kg.ha-1']
RGRLAI:
- 0.0500
- maximum relative increase in LAI
- ['d-1']
#
# CROP GREEN AREA
#
SLATB:
- [0.00, 0.00350,
1.00, 0.00160,
2.00, 0.00160]
- specific leaf area as a function of DVS
- ['-', 'ha.kg-1']
SPA:
- 0.0000
- specific pod area
- ['ha.kg-1']
SSATB:
- [0.00, 0.0000,
2.00, 0.0000]
- specific stem area as function of DVS
- ['-', 'ha.kg-1']
SPAN:
- 40.0
- life span of leaves growing at 35 Celsius
- ['d']
TBASE:
- 8.0
- lower threshold temperature for ageing of leaves
- ['C']
#
# CO2 ASSIMILATION
#
KDIFTB:
- [0.00, 0.600,
2.00, 0.600]
- extinction coefficient for diffuse visible light as function of DVS
- ['-', '-']
EFFTB:
- [ 0.0, 0.500,
40.0, 0.500]
- initial light-use efficiency single leaf as function of daily mean temperature
- ['C', 'kg.ha-1.hr-1.J-1.m2.s1']
AMAXTB:
- [0.00, 70.00,
1.25, 70.00,
1.50, 63.00,
1.75, 49.00,
2.00, 0.00]
- maximum leaf CO2 assimilation rate as function of DVS
- ['-', 'kg.ha-1.hr-1']
TMPFTB:
- [ 0.0, 0.000,
6.0, 0.000,
30.0, 1.000,
42.0, 1.000,
51.0, 0.000]
- reduction factor of AMAX as function of average daytime (*not* daily) temperature
- ['C', '-']
TMNFTB:
- [ 5.0, 0.000,
12.0, 1.000]
- reduction factor of gross assimilation rate as function of low minimum temperature
- ['C', '-']
#
# CONVERSION EFFICIENCY OF ASSIMILATES
#
CVL:
- 0.720
- efficiency of conversion into leaves
- ['mass.mass-1']
CVO:
- 0.720
- efficiency of conversion into storage organs
- ['mass.mass-1']
CVR:
- 0.720
- efficiency of conversion into roots
- ['mass.mass-1']
CVS:
- 0.690
- efficiency of conversion into stems
- ['mass.mass-1']
#
# RESPIRATION
#
Q10:
- 2.00
- relative increase in respiration rate per 10 degrees Celsius temperature increase
- ['-']
RML:
- 0.0300
- relative maintenance respiration rate of leaves
- ['d-1']
RMO:
- 0.0100
- relative maintenance respiration rate of storage organs
- ['d-1']
RMR:
- 0.0100
- relative maintenance respiration rate of roots
- ['d-1']
RMS:
- 0.0150
- relative maintenance respiration rate of stems
- ['d-1']
RFSETB:
- [0.00, 1.000,
2.00, 1.000]
- reduction factor for senescence as function of DVS
- ['-', '-']
#
# PARTITIONING
#
FRTB:
- [0.000, 0.400,
1.100, 0.000,
2.000, 0.000]
- fraction of total dry matter to roots as a function of DVS
- ['-', 'mass.mass-1']
FLTB:
- [0.000, 0.620,
0.480, 0.620,
0.900, 0.280,
1.250, 0.000,
1.370, 0.000,
2.000, 0.000]
- fraction of total dry matter to leaves as a function of DVS
- ['-', 'mass.mass-1']
FSTB:
- [0.000, 0.380,
0.480, 0.380,
0.900, 0.720,
1.250, 0.240,
1.370, 0.000,
2.000, 0.000]
- fraction of total dry matter to stems as a function of DVS
- ['-', 'mass.mass-1']
FOTB:
- [0.000, 0.000,
0.480, 0.000,
0.900, 0.000,
1.250, 0.760,
1.370, 1.000,
2.000, 1.000]
- fraction of total dry matter to storage organs as a function of DVS
- ['-', 'mass.mass-1']
#
# DEATH RATES
#
PERDL:
- 0.030
- maximum relative death rate of leaves due to water stress
- ['-']
RDRRTB:
- [0.00, 0.000,
1.50, 0.000,
1.51, 0.020,
2.00, 0.020]
- Relative death rate of stems as a function of DVS
- ['-', 'kg.kg-1.d-1']
RDRSTB:
- [0.00, 0.000,
1.50, 0.000,
1.51, 0.020,
2.00, 0.020]
- relative death rate of roots as a function of DVS
- ['-', 'kg.kg-1.d-1']
#
# WATER USE
#
CFET:
- 1.00
- correction factor transpiration rate
- ['-']
DEPNR:
- 4.50
- crop group number for soil water depletion
- ['-']
IAIRDU:
- 0
- air ducts in roots present (=1) or not (=0)
- ['NA']
IOX:
- 0
- Oxygen stress effect enabled (=1) or not (=0)
- ['NA']
#
# ROOTING DEPTH
#
RDI:
- 10.0
- initial rooting depth
- ['cm']
RRI:
- 1.20
- maximum daily increase in rooting depth
- ['cm.d-1']
RDMCR:
- 75.0
- maximum rooting depth
- ['cm']
#
# MAXIMUM, CRITICAL AND RESIDUAL NITROGEN CONCENTRATION IN DIFFERENT ORGANS
#
NMAXLV_TB:
- [0.00, 0.0600,
0.40, 0.0400,
0.70, 0.0300,
1.00, 0.0200,
2.00, 0.0167,
2.10, 0.0167]
- maximum N concentration in leaves as function of development stage in kg N kg-1 dry biomass
- ['-', 'mass.mass-1']
NMAXRT_FR:
- 0.5000
- maximum N concentration in roots as fraction of maximum N concentration in leaves
- ['-']
NMAXST_FR:
- 0.5000
- maximum N concentration in stems as fraction of maximum N concentration in leaves
- ['-']
NMAXSO:
- 0.0220
- maximum P concentration in storage organs [kg N kg-1 dry biomass]
- ['mass.mass-1']
NCRIT_FR:
- 1.00
- Critical N concentration as fraction of maximum N concentration
- ['-']
NRESIDLV:
- 0.0053
- residual N fraction in leaves [kg N kg-1 dry biomass]
- ['mass.mass-1']
NRESIDST:
- 0.0027
- residual N fraction in stems [kg N kg-1 dry biomass]
- ['mass.mass-1']
NRESIDRT:
- 0.0027
- residual N fraction in roots [kg N kg-1 dry biomass]
- ['mass.mass-1']
TCNT:
- 10
- time coefficient for N translocation to storage organs
- ['d']
NFIX_FR:
- 0.00
- fraction of crop nitrogen uptake by biological fixation
- ['-']
#
# MAXIMUM, CRITICAL AND RESIDUAL PHOSPHORUS CONCENTRATION IN DIFFERENT ORGANS
#
PMAXLV_TB:
- [0.00, 0.0144,
0.40, 0.0096,
0.70, 0.0072,
1.00, 0.0048,
2.00, 0.0040,
2.10, 0.0040]
- maximum P concentration in leaves as function of development stage in kg P kg-1 dry biomass
- ['-', 'mass.mass-1']
PMAXRT_FR:
- 0.5000
- maximum P concentration in roots as fraction of maximum P concentration in leaves
- ['-']
PMAXST_FR:
- 0.5000
- maximum P concentration in stems as fraction of maximum P concentration in leaves
- ['-']
PMAXSO:
- 0.0075
- maximum P concentration in storage organs [kg P kg-1 dry biomass]
- ['mass.mass-1']
PCRIT_FR:
- 1.00
- Critical P concentration as fraction of maximum P concentration
- ['-']
PRESIDLV:
- 0.0005
- residual P fraction in leaves [kg P kg-1 dry biomass]
- ['mass.mass-1']
PRESIDST:
- 0.0003
- residual P fraction in stems [kg P kg-1 dry biomass]
- ['mass.mass-1']
PRESIDRT:
- 0.0003
- residual P fraction in roots [kg P kg-1 dry biomass]
- ['mass.mass-1']
TCPT:
- 10
- time coefficient for P translocation to storage organs
- ['d']
#
# MAXIMUM, CRITICAL AND RESIDUAL POTASSIUM CONCENTRATION IN DIFFERENT ORGANS
#
KMAXLV_TB:
- [0.00, 0.0960,
0.40, 0.0640,
0.70, 0.0480,
1.00, 0.0320,
2.00, 0.0270,
2.10, 0.0270]
- maximum K concentration in leaves as function of development stage in kg K kg-1 dry biomass
- ['-', 'mass.mass-1']
KMAXRT_FR:
- 0.5000
- maximum K concentration in roots as fraction of maximum K concentration in leaves
- ['-']
KMAXST_FR:
- 0.5000
- maximum K concentration in stems as fraction of maximum K concentration in leaves
- ['-']
KMAXSO:
- 0.0060
- maximum K concentration in storage organs [kg K kg-1 dry biomass]
- ['mass.mass-1']
KCRIT_FR:
- 1.00
- Critical K concentration as fraction of maximum K concentration
- ['-']
KRESIDLV:
- 0.0067
- residual K fraction in leaves [kg K kg-1 dry biomass]
- ['mass.mass-1']
KRESIDST:
- 0.0033
- residual K fraction in stems [kg K kg-1 dry biomass]
- ['mass.mass-1']
KRESIDRT:
- 0.0033
- residual K fraction in roots [kg K kg-1 dry biomass]
- ['mass.mass-1']
TCKT:
- 10
- time coefficient for K translocation to storage organs
- ['d']
#
# IMPORT DVS RELATED TO N/P/K UPTAKE AND TRANSLOCATION
#
DVS_NPK_STOP:
- 1.30
- development stage above which no crop N/P/K uptake occurs
- ['-']
DVS_NPK_TRANSL:
- 0.80
- development stage above which N/P/K translocation to storage organs does occur
- ['-']
#
# IMPACT OF N/P/K STRESS ON PROCESSES
#
NLAI_NPK:
- 1.00
- coefficient for the reduction due to nutrient NPK stress of the LAI increase (during juvenile phase)
- ['-']
NSLA_NPK:
- 0.50
- coefficient for the effect of nutrient NPK stress on SLA reduction
- ['-']
NPART:
- 1.00
- coefficient for the effect of nutrient N stress on leaf allocation
- ['-']
NLUE_NPK:
- 1.10
- coefficient for the reduction of gross CO2 assimilation rate due to nutrient (N-P-K) stress
- ['-']
NPK_TRANSLRT_FR:
- 0.50
- NPK translocation from roots as a fraction of total NPK amounts translocated from leaves and stems
- ['-']
RDRLV_NPK:
- 0.05
- maximum relative death rate of leaves due to nutrient NPK stress
- ['-']
#
# Maximum N/P/K uptake rates, see changelog.txt
#
RNUPTAKEMAX:
- 7.2
- Maximum rate of daily nitrogen uptake
- ['kg.ha-1.d-1']
RPUPTAKEMAX:
- 0.8
- Maximum rate of daily phosphorus uptake
- ['kg..ha-1.d-1']
RKUPTAKEMAX:
- 7.4
- Maximum rate of daily phosphorus uptake
- ['kg.ha-1.d-1']
temperate_maize: &temperate_maize
<<: *GenericC4
#
# EMERGENCE
#
TBASEM:
- 4.0
- Lower threshold temperature for emergence
- ['C']
TEFFMX:
- 30.0
- maximum effective temperature for emergence
- ['C']
TSUMEM:
- 110
- temperature sum from sowing to emergence
- ['C.d']
#
# PHENOLOGICAL DEVELOPMENT
#
IDSL:
- 0
- indicates whether pre-anthesis development depends on temperature (=0), plus daylength (=1) , plus vernalization (=2)
- ['NA']
DLO:
- -99.0
- optimum daylength for development
- ['hr']
DLC:
- -99.0
- critical daylength (lower threshold)
- ['hr']
TSUM1:
- 695
- temperature sum from emergence to anthesis
- ['C.d']
TSUM2:
- 800
- temperature sum from anthesis to maturity
- ['C.d']
DTSMTB:
- [ 0.0, 0.0,
6.0, 0.0,
30.0, 24.0,
35.0, 24.0]
- daily increase in temperature sum as function of daily average temperature
- ['C', 'C']
DVSI:
- 0.0
- Initial development stage
- ['-']
DVSEND:
- 2.0
- development stage at harvest (= 2.0 at maturity)
- ['-']
VERNBASE:
- 14.0
- Base vernalization requirement
- ['d']
VERNSAT:
- 70.0
- Saturated vernalization requirement
- ['d']
VERNDVS:
- 0.30
- Critical DVS for vernalization to switch off
- ['-']
VERNRTB:
- [-8.0, 0.0,
-4.0, 0.0,
3.0, 1.0,
10.0, 1.0,
17.0, 0.0,
20.0, 0.0]
- Temperature response function for vernalization
- ['C', '-']
#
# INITIAL STATES
#
TDWI:
- 50.00
- initial total crop dry weight
- ['kg.ha-1']
RGRLAI:
- 0.0294
- maximum relative increase in LAI
- ['d-1']
#
# CROP GREEN AREA
#
SLATB:
- [0.00, 0.00260,
0.78, 0.00120,
2.00, 0.00120]
- specific leaf area as a function of DVS
- ['-', 'ha.kg-1']
SPA:
- 0.0000
- specific pod area
- ['ha.kg-1']
SSATB:
- [0.00, 0.0000,
2.00, 0.0000]
- specific stem area as function of DVS
- ['-', 'ha.kg-1']
SPAN:
- 33.0
- life span of leaves growing at 35 Celsius
- ['d']
TBASE:
- 10.0
- lower threshold temperature for ageing of leaves
- ['C']
#
# CO2 ASSIMILATION
#
KDIFTB:
- [0.00, 0.600,
2.00, 0.600]
- extinction coefficient for diffuse visible light as function of DVS
- ['-', '-']
EFFTB:
- [ 0.0, 0.450,
40.0, 0.450]
- initial light-use efficiency single leaf as function of daily mean temperature
- ['C', 'kg.ha-1.hr-1.J-1.m2.s1']
AMAXTB:
- [0.00, 70.00,
1.25, 70.00,
1.50, 63.00,
1.75, 49.00,
2.00, 21.00]
- maximum leaf CO2 assimilation rate as function of DVS
- ['-', 'kg.ha-1.hr-1']
REFCO2L:
- 360
- CO2 level at which AMAX and EFF were measured
- ['PPM']
TMPFTB:
- [ 0.0, 0.010,
9.0, 0.050,
16.0, 0.800,
18.0, 0.940,
20.0, 1.000,
30.0, 1.000,
36.0, 0.950,
42.0, 0.560]
- reduction factor of AMAX as function of average daytime (*not* daily) temperature
- ['C', '-']
TMNFTB:
- [ 5.0, 0.000,
8.0, 1.000]
- reduction factor of gross assimilation rate as function of low minimum temperature
- ['C', '-']
#
# CONVERSION EFFICIENCY OF ASSIMILATES
#
CVL:
- 0.680
- efficiency of conversion into leaves
- ['mass.mass-1']
CVO:
- 0.671
- efficiency of conversion into storage organs
- ['mass.mass-1']
CVR:
- 0.690
- efficiency of conversion into roots
- ['mass.mass-1']
CVS:
- 0.658
- efficiency of conversion into stems
- ['mass.mass-1']
#
# RESPIRATION
#
Q10:
- 2.00
- relative increase in respiration rate per 10 degrees Celsius temperature increase
- ['-']
RML:
- 0.0300
- relative maintenance respiration rate of leaves
- ['d-1']
RMO:
- 0.0100
- relative maintenance respiration rate of storage organs
- ['d-1']
RMR:
- 0.0150
- relative maintenance respiration rate of roots
- ['d-1']
RMS:
- 0.0150
- relative maintenance respiration rate of stems
- ['d-1']
RFSETB:
- [0.00, 1.000,
1.50, 1.000,
1.75, 0.750,
2.00, 0.250]
- reduction factor for senescence as function of DVS
- ['-', '-']
#
# PARTITIONING
#
FRTB:
- [0.000, 0.400,
0.100, 0.370,
0.200, 0.340,
0.300, 0.310,
0.400, 0.270,
0.500, 0.230,
0.600, 0.190,
0.700, 0.150,
0.800, 0.100,
0.900, 0.060,
1.000, 0.000,
2.000, 0.000]
- fraction of total dry matter to roots as a function of DVS
- ['-', 'mass.mass-1']
FLTB:
- [0.000, 0.620,
0.330, 0.620,
0.880, 0.150,
0.950, 0.150,
1.100, 0.100,
1.200, 0.000,
2.000, 0.000]
- fraction of total dry matter to leaves as a function of DVS
- ['-', 'mass.mass-1']
FSTB:
- [0.000, 0.380,
0.330, 0.380,
0.880, 0.850,
0.950, 0.850,
1.100, 0.400,
1.200, 0.000,
2.000, 0.000]
- fraction of total dry matter to stems as a function of DVS
- ['-', 'mass.mass-1']
FOTB:
- [0.950, 0.000,
1.100, 0.500,
1.200, 1.000,
2.000, 1.000]
- fraction of total dry matter to storage organs as a function of DVS
- ['-', 'mass.mass-1']
#
# DEATH RATES
#
PERDL:
- 0.030
- maximum relative death rate of leaves due to water stress
- ['-']
RDRRTB:
- [0.00, 0.000,
1.50, 0.000,
1.51, 0.020,
2.00, 0.020]
- Relative death rate of stems as a function of DVS
- ['-', 'kg.kg-1.d-1']
RDRSTB:
- [0.00, 0.000,
1.50, 0.000,
1.51, 0.020,
2.00, 0.020]
- relative death rate of roots as a function of DVS
- ['-', 'kg.kg-1.d-1']
#
# WATER USE
#
CFET:
- 1.00
- correction factor transpiration rate
- ['-']
DEPNR:
- 4.50
- crop group number for soil water depletion
- ['-']
IAIRDU:
- 0
- air ducts in roots present (=1) or not (=0)
- ['NA']
IOX:
- 0
- Oxygen stress effect enabled (=1) or not (=0)
- ['NA']
#
# ROOTING DEPTH
#
RDI:
- 10.0
- initial rooting depth
- ['cm']
RRI:
- 2.20
- maximum daily increase in rooting depth
- ['cm.d-1']
RDMCR:
- 100.0
- maximum rooting depth
- ['cm']
#
# MAXIMUM, CRITICAL AND RESIDUAL NITROGEN CONCENTRATION IN DIFFERENT ORGANS
#
NMAXLV_TB:
- [0.00, 0.0600,
0.40, 0.0400,
0.70, 0.0300,
1.00, 0.0200,
2.00, 0.0167,
2.10, 0.0167]
- maximum N concentration in leaves as function of development stage in kg N kg-1 dry biomass
- ['-', 'mass.mass-1']
NMAXRT_FR:
- 0.5000
- maximum N concentration in roots as fraction of maximum N concentration in leaves
- ['-']
NMAXST_FR:
- 0.5000
- maximum N concentration in stems as fraction of maximum N concentration in leaves
- ['-']
NMAXSO:
- 0.0152
- maximum P concentration in storage organs [kg N kg-1 dry biomass]
- ['mass.mass-1']
NCRIT_FR:
- 1.00
- Critical N concentration as fraction of maximum N concentration
- ['-']
NRESIDLV:
- 0.0053
- residual N fraction in leaves [kg N kg-1 dry biomass]
- ['mass.mass-1']
NRESIDST:
- 0.0027
- residual N fraction in stems [kg N kg-1 dry biomass]
- ['mass.mass-1']
NRESIDRT:
- 0.0027
- residual N fraction in roots [kg N kg-1 dry biomass]
- ['mass.mass-1']
TCNT:
- 10
- time coefficient for N translocation to storage organs
- ['d']
NFIX_FR:
- 0.00
- fraction of crop nitrogen uptake by biological fixation
- ['-']
#
# MAXIMUM, CRITICAL AND RESIDUAL PHOSPHORUS CONCENTRATION IN DIFFERENT ORGANS
#
PMAXLV_TB:
- [0.00, 0.0144,
0.40, 0.0096,
0.70, 0.0072,
1.00, 0.0048,
2.00, 0.0040,
2.10, 0.0040]
- maximum P concentration in leaves as function of development stage in kg P kg-1 dry biomass
- ['-', 'mass.mass-1']
PMAXRT_FR:
- 0.5000
- maximum P concentration in roots as fraction of maximum P concentration in leaves
- ['-']
PMAXST_FR:
- 0.5000
- maximum P concentration in stems as fraction of maximum P concentration in leaves
- ['-']
PMAXSO:
- 0.0027
- maximum P concentration in storage organs [kg P kg-1 dry biomass]
- ['mass.mass-1']
PCRIT_FR:
- 1.00
- Critical P concentration as fraction of maximum P concentration
- ['-']
PRESIDLV:
- 0.00053
- residual P fraction in leaves [kg P kg-1 dry biomass]
- ['mass.mass-1']
PRESIDST:
- 0.00027
- residual P fraction in stems [kg P kg-1 dry biomass]
- ['mass.mass-1']
PRESIDRT:
- 0.00027
- residual P fraction in roots [kg P kg-1 dry biomass]
- ['mass.mass-1']
TCPT:
- 10
- time coefficient for P translocation to storage organs
- ['d']
#
# MAXIMUM, CRITICAL AND RESIDUAL POTASSIUM CONCENTRATION IN DIFFERENT ORGANS
#
KMAXLV_TB:
- [0.00, 0.0960,
0.40, 0.0640,
0.70, 0.0480,
1.00, 0.0320,
2.00, 0.0270,
2.10, 0.0270]
- maximum K concentration in leaves as function of development stage in kg K kg-1 dry biomass
- ['-', 'mass.mass-1']
KMAXRT_FR:
- 0.5000
- maximum K concentration in roots as fraction of maximum K concentration in leaves
- ['-']
KMAXST_FR:
- 0.5000
- maximum K concentration in stems as fraction of maximum K concentration in leaves
- ['-']
KMAXSO:
- 0.0032
- maximum K concentration in storage organs [kg K kg-1 dry biomass]
- ['mass.mass-1']
KCRIT_FR:
- 1.00
- Critical K concentration as fraction of maximum K concentration
- ['-']
KRESIDLV:
- 0.0067
- residual K fraction in leaves [kg K kg-1 dry biomass]
- ['mass.mass-1']
KRESIDST:
- 0.0033
- residual K fraction in stems [kg K kg-1 dry biomass]
- ['mass.mass-1']
KRESIDRT:
- 0.0033
- residual K fraction in roots [kg K kg-1 dry biomass]
- ['mass.mass-1']
TCKT:
- 10
- time coefficient for K translocation to storage organs
- ['d']
#