rapeseed.yaml

# 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
#
# Changes:
# - TSUMEM recomputed as ~180 C.d based on data from:
#   https://acsess.onlinelibrary.wiley.com/doi/full/10.2135/cropsci2019.03.0160
#   
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 oilseed rape
    Date: 2022-02-13
    Language: EN
    Format: YAML
    Subject: WOFOST parameters for oilseed rape
    Description: This file provides parameters for one or more oilseed rape varieties calibrated on
        local experimental data or regional cropping calendars for Europe.
    Identifier:
    Relation:
    Source: https://edepot.wur.nl/308997
    Type: Report
    Coverage:
       Region: Europe
    Rights: European Union Public License (EUPL)
    Keyword: Oilseed rape; Brassica campestris
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:
        rapeseed: &rapeseed
            <<: *GenericC3
            #
            # EMERGENCE
            #
            TBASEM:
            - 0.0
            - Lower threshold temperature for emergence
            - ['C']
            TEFFMX:
            - 30.0
            - maximum effective temperature for emergence
            - ['C']
            TSUMEM:
            -  180
            - temperature sum from sowing to emergence
            - ['C.d']
            #
            # PHENOLOGICAL DEVELOPMENT
            #
            IDSL:
            -  1
            - indicates whether pre-anthesis development depends on temperature (=0), plus daylength (=1) , plus vernalization (=2)
            - ['NA']
            DLO:
            - 16.0
            - optimum daylength for development
            - ['hr']
            DLC:
            - 10.0
            - critical daylength (lower threshold)
            - ['hr']
            TSUM1:
            -  240
            - temperature sum from emergence to anthesis
            - ['C.d']
            TSUM2:
            -  600
            - temperature sum from anthesis to maturity
            - ['C.d']
            DTSMTB:
            - [ 0.0,  0.0,
                4.0,  0.0,
               35.0, 31.0,
               45.0, 31.0]
            - 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:
            - 244.00
            - initial total crop dry weight
            - ['kg.ha-1']
            RGRLAI:
            - 0.5000
            - maximum relative increase in LAI
            - ['d-1']
            #
            # CROP GREEN AREA
            #
            SLATB:
            - [0.00, 0.00220,
               2.00, 0.00190]
            - 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:
            - 17.0
            - life span of leaves growing at 35 Celsius
            - ['d']
            TBASE:
            -  0.0
            - lower threshold temperature for ageing of leaves
            - ['C']
            #
            # CO2 ASSIMILATION
            #
            KDIFTB:
            - [0.00, 0.540,
               2.00, 0.540]
            - 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, 40.00,
               0.80, 40.00,
               1.00, 30.00,
               1.20, 40.00,
               1.40, 40.00,
               2.00, 0.00]
            - 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, 0.000,
               10.0, 1.000,
               30.0, 1.000,
               35.0, 0.000]
            - reduction factor of AMAX as function of average daytime (*not* daily)  temperature
            - ['C', '-']
            TMNFTB:
            - [ 0.0, 0.000,
                1.0, 0.000,
                4.0, 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:
            - 0.450
            - 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, 0.200,
               0.300, 0.200,
               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, 0.700,
               0.200, 0.700,
               0.300, 0.500,
               0.700, 0.300,
               1.000, 0.150,
               1.190, 0.150,
               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, 0.300,
               0.200, 0.300,
               0.300, 0.500,
               0.700, 0.700,
               1.000, 0.850,
               1.190, 0.550,
               1.200, 0.700,
               1.350, 0.300,
               1.700, 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,
               1.000, 0.000,
               1.190, 0.300,
               1.200, 0.300,
               1.350, 0.700,
               1.700, 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,
               1.00, 0.000,
               1.01, 0.020,
               1.40, 0.030,
               2.00, 0.040]
            - 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:
            - 125.0
            - 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, 0.0133,
               2.10, 0.0133]
            - 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:
            - 0.0240
            - 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:
            - 0.0073
            - residual N fraction in leaves [kg N kg-1 dry biomass]
            - ['mass.mass-1']
            NRESIDST:
            - 0.0037
            - residual N fraction in stems [kg N kg-1 dry biomass]
            - ['mass.mass-1']
            NRESIDRT:
            - 0.0037
            - 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, 0.0120,
               0.40, 0.0080,
               0.70, 0.0060,
               1.00, 0.0040,
               2.00, 0.0027,
               2.10, 0.0027]
            - 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:
            - 0.0042
            - 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:
            - 0.00107
            - residual P fraction in leaves [kg P kg-1 dry biomass]
            - ['mass.mass-1']
            PRESIDST:
            - 0.00053
            - residual P fraction in stems [kg P kg-1 dry biomass]
            - ['mass.mass-1']
            PRESIDRT:
            - 0.00053
            - 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, 0.1140,
               0.40, 0.0760,
               0.70, 0.0570,
               1.00, 0.0380,
               2.00, 0.0253,
               2.10, 0.0253]
            - 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:
            - 0.0112
            - 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:
            - 0.0127
            - residual K fraction in leaves [kg K kg-1 dry biomass]
            - ['mass.mass-1']
            KRESIDST:
            - 0.0063
            - residual K fraction in stems [kg K kg-1 dry biomass]
            - ['mass.mass-1']
            KRESIDRT:
            - 0.0063
            - 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 potassium uptake
             - ['kg.ha-1.d-1']
    Varieties:
        Oilseed_rape_1001:
            <<: *rapeseed
            Metadata:
                <<: *meta
                Description: Oilseed rape calibrated for Western and Northern Europe including Northern France,
                    Germany, Belgium, Netherlands, Denmark and the UK. Note that the current temperature sums
                    have been estimated for crop simulations starting on the 1st of January because impact of day
                    length and vernalization have not been estimated.
            TSUM1:
            -  240
            - temperature sum from emergence to anthesis
            - ['C.d']
            TSUM2:
            -  600
            - temperature sum from anthesis to maturity
            - ['C.d']
        Oilseed_rape_1002:
            <<: *rapeseed
            Metadata:
                <<: *meta
                Description: Oilseed rape calibrated for Southern France and Southern Italy. Mean date of flowering
                    10 April (Italy) to 25 April (S-France). Maturity date 5 June (Italy) to 16 July (France).
                    Note that the current temperature sums have been estimated for crop simulations starting on
                    the 1st of January because impact of day length and vernalization have not been estimated.
            TSUM1:
            -  200
            - temperature sum from emergence to anthesis
            - ['C.d']
            TSUM2:
            -  700
            - temperature sum from anthesis to maturity
            - ['C.d']
            RGRLAI:
            - 0.0080
            - maximum relative increase in LAI
            - ['d-1']
            SPAN:
            - 22.0
            - life span of leaves growing at 35 Celsius
            - ['d']
            AMAXTB:
            - [0.00, 40.00,
               0.80, 40.00,
               1.00, 30.00,
               1.20, 35.00,
               1.40, 20.00,
               2.00, 0.00]
            - maximum leaf CO2 assimilation rate as function of DVS
            - ['-', 'kg.ha-1.hr-1']
            RMO:
            - 0.0120
            - relative maintenance respiration rate of storage organs
            - ['d-1']
            FLTB:
            - [0.000, 0.600,
               0.200, 0.600,
               0.300, 0.400,
               0.700, 0.200,
               1.000, 0.150,
               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, 0.400,
               0.200, 0.400,
               0.300, 0.600,
               0.700, 0.800,
               1.000, 0.850,
               1.200, 0.700,
               1.350, 0.300,
               1.700, 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,
               1.000, 0.000,
               1.200, 0.300,
               1.350, 0.700,
               1.700, 1.000,
               2.000, 1.000]
            - fraction of total dry matter to storage organs as a function of DVS
            - ['-', 'mass.mass-1']
        Oilseed_rape_1003:
            <<: *rapeseed
            Metadata:
                <<: *meta
                Description: Oilseed rape calibrated for Southern Spain. Mean date of flowering
                    26 and maturity date 5 June.
                    Note that the current temperature sums have been estimated for crop simulations starting on
                    the 1st of January because impact of day length and vernalization have not been estimated.
            TSUM1:
            -  190
            - temperature sum from emergence to anthesis
            - ['C.d']
            TSUM2:
            -  900
            - temperature sum from anthesis to maturity
            - ['C.d']
            RGRLAI:
            - 0.0080
            - maximum relative increase in LAI
            - ['d-1']
            SPAN:
            - 28.0
            - life span of leaves growing at 35 Celsius
            - ['d']
            AMAXTB:
            - [0.00, 40.00,
               0.80, 40.00,
               1.00, 30.00,
               1.20, 35.00,
               1.40, 20.00,
               2.00, 0.00]
            - maximum leaf CO2 assimilation rate as function of DVS
            - ['-', 'kg.ha-1.hr-1']
            RMO:
            - 0.0120
            - relative maintenance respiration rate of storage organs
            - ['d-1']
            FLTB:
            - [0.000, 0.600,
               0.200, 0.600,
               0.300, 0.400,
               0.700, 0.200,
               1.000, 0.150,
               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, 0.400,
               0.200, 0.400,
               0.300, 0.600,
               0.700, 0.800,
               1.000, 0.850,
               1.200, 0.700,
               1.350, 0.300,
               1.700, 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,
               1.000, 0.000,
               1.200, 0.300,
               1.350, 0.700,
               1.700, 1.000,
               2.000, 1.000]
            - fraction of total dry matter to storage organs as a function of DVS
            - ['-', 'mass.mass-1']
        Oilseed_rape_1004:
            <<: *rapeseed
            Metadata:
                <<: *meta
                Description: Oilseed rape calibrated for Spain, except Southern part. Mean date of maturity 25 June.
                    Note that the current temperature sums have been estimated for crop simulations starting on
                    the 1st of January because impact of day length and vernalization have not been estimated.
            DLO:
            - 15.0
            - optimum daylength for development
            - ['hr']
            TSUM1:
            -  195
            - temperature sum from emergence to anthesis
            - ['C.d']
            TSUM2:
            - 1150
            - temperature sum from anthesis to maturity
            - ['C.d']
            RGRLAI:
            - 0.0500
            - maximum relative increase in LAI
            - ['d-1']
            SLATB:
            - [0.00, 0.00190,
               2.00, 0.00170]
            - specific leaf area as a function of DVS
            - ['-', 'ha.kg-1']
            SPAN:
            - 35.0
            - life span of leaves growing at 35 Celsius
            - ['d']
            AMAXTB:
            - [0.00, 31.00,
               0.80, 31.00,
               1.00, 21.00,
               1.20, 26.00,
               1.40, 26.00,
               2.00, 0.00]
            - maximum leaf CO2 assimilation rate as function of DVS
            - ['-', 'kg.ha-1.hr-1']
            CVO:
            - 0.400
            - efficiency of conversion into storage organs
            - ['mass.mass-1']
            RMO:
            - 0.0120
            - relative maintenance respiration rate of storage organs
            - ['d-1']
            FRTB:
            - [0.000, 0.100,
               0.380, 0.100,
               0.500, 0.240,
               0.630, 0.170,
               0.750, 0.100,
               1.250, 0.100,
               1.380, 0.050,
               2.000, 0.000]
            - fraction of total dry matter to roots as a function of DVS
            - ['-', 'mass.mass-1']
            FLTB:
            - [0.000, 0.830,
               0.380, 0.830,
               0.500, 0.750,
               0.630, 0.690,
               0.750, 0.680,
               0.880, 0.560,
               1.000, 0.530,
               1.130, 0.410,
               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, 0.170,
               0.380, 0.170,
               0.500, 0.250,
               0.630, 0.310,
               0.750, 0.320,
               0.880, 0.440,
               1.000, 0.470,
               1.130, 0.560,
               1.200, 0.660,
               1.380, 0.500,
               1.500, 0.450,
               1.630, 0.550,
               1.750, 0.460,
               1.880, 0.400,
               2.000, 0.390]
            - fraction of total dry matter to stems as a function of DVS
            - ['-', 'mass.mass-1']
            FOTB:
            - [0.000, 0.000,
               1.000, 0.000,
               1.130, 0.030,
               1.200, 0.340,
               1.380, 0.500,
               1.500, 0.550,
               1.630, 0.450,
               1.750, 0.540,
               1.880, 0.600,
               2.000, 0.610]
            - fraction of total dry matter to storage organs as a function of DVS
            - ['-', 'mass.mass-1']