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8.2 Alphabetical list of all acronyms used in FARMSIM

Acronym Explanation Unit
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Apcum cumulative fertilizer nitrogen applied to the rice field [kg N ha-1]
appliedPigManure amount of daily produced manure that is applied to fishpond [%]
avRadiation tabulated average radiation '90-'93 in the Philippines [MJm-2 d-1]
avWatertemp average early morning water temperature of fish growth period [°C]
beforeharvest rice growth period minus seven days [d]
BMin daily recycled buffalo manure [kg N/d]
branrate amount of rice bran harvested [kg/d]
brokenrate amount of broken rice harvested [kg/d]
Brokenrice amount of broken rice available [kg]
BrokenriceRecycle amount of broken rice recycled [%]
BrokenriceUse amount of broken rice recycled [kg]
buffalo manure production of buffalos [kg DM/d]
buffmanconv amount of nitrogen produced by buffal manure [kg N/d]
BuffmanN total amount of buffalo manure nitrogen produced [kg N]
buffmantofish amount of buffalo manure nitrogen applied to the fishpond [kg N/d]
buffmantorice amount of buffalo manure nitrogen applied to the ricefield [kg N/d]
BuffmanureRecycle amount of buffalo manure recycled [%]
BuffmanureUse amount of buffalo manure recycled [kg]
buffmanwaste amount of buffalo manure which is lost by not using [kg N/d]
Bundweedgrowth rate of bundweed growth [kg FW/d]
buyChickfood rate by which food for chicken is purchased [kg/d]
buyPigfood rate by which food for pigs is purchased [kg/d]
chickAB chicken growth constant (food conversion efficiency) [1/d]
chickadlib modelled ad Libitum food intake of chicken [kg/d]
Chickage age of chicken within each chicken life cycle [days]
chickfeeding amount which is fed to chickens [% ad libitum]
ChickFeedinPercent chicken feeding rate in per cent body weight [% body weight]
chickfeedrate amount of food fed to chicken [kg/d]
chickfooddemand amount of chicken food demand according to feeding regime [kg/d]
chickgrowthrate growth rate of chickens [kg/d]
chickmaturing rate by which chicken grow older (to determine chicken age) [d/d]
chickmaxfeed maximal mature ad Libitum food intake of chicken [kg]
chickmaxweight maximal attainable weight of chicken [kg]
Chickproduction total amount of chickens produced [kg]
chickslaughter weight at which chickens are slaughtered [-]
chickslaughtering amount of chickens that are slaughtered [kg]
chickt' ad libitum food intake constant of chicken [days]
ChickTo chicken growth constant [days]
CropWeight total DM produced on rice field (roots and shoots) [kg DM/ha]
culture_period period after which fish is harvested [days]
culture_time rate by which the pond becomes older [d/d]
cut total amount of rice DM harvested (roots and shoots) [kg DM/(ha*d]
dailyNAppl daily nitrogen application to the fishpond [kg N/(ha*d)]
DAT days after rice transplanting [days]
DAT1 date of first fertilizer application to rice field [DAT]
DAT2 date of second fertilizer application to rice field [DAT]
DATEF date of rice flowering [-]
DATEFF date of rice first flowering [-]
DATEH date of rice harvest [-]
DATEHF one week before rice harvest [-]
dateofharvest date of fish harvest [d]
dateofstocking date of stocking the fishpond [d]
DOH days of weed harvest [d]
DOT day of rice transplantig [-]
DOY day of year (julian date) [-]
Efficiency overall farm nitrogen efficiency [%]
epsilon initial global radiation use coefficient of rice [g DM/(MJ*m²)]
fert amount of pig manure applied to the fishpond [kgFW/d]
FertAppl1 amount of nitrogen applied to ricefield on DAT1 [kg N/ha]
FertAppl2 amount of nitrogen applied to ricefield on DAT2 [kg N/ha]
firstflowering day of first rice flowering [-]
FishRate length growth rate of an individual fish [cm/d]
FishWeight weight of an individual fish [g FW]
flowering day of rice flowering [-]
FNL fraction of total rice nitrogen stored in the canopy [g/g]
FSV rice growth calibration parameter [-]
GrowthRate rice growth rate [kg DM/(ha*d)]
Harvest amount of grains and hulls harvested [kg DM/(ha*d)]
hectare size of the rice field on the farm [ha]
Integrator1 external input to the farm [kg N/d]
k fish growth constant [1/d]
LeafN amount of nitrogen in the rice canopy [kg N/ha]
Lenght individual fish length [cm]
LNUptake leaf nitrogen uptake [kg N/(ha*d)]
LNuseCoef initial leaf nitrogen used coefficient [kg DM/kg leaf N
maxLenght maximal attainable fish length [cm]
MaxNCon maximal nitrogen concentration inthe rice plant [kg N/kg]
NAppl rate of nitrogen application to the rice field [kg N/(ha*d)]
NAvail available soil nitrogen [kg N/ha]
NDemand nitrogen demand of the rice crop [kg N/(ha*d)]
newPond cumulative nitrogen input in the pond is set to zero [kg N/(ha*d)]
Ninput cumulative nitrogen input in the fishpond [kg N/ha]
NperHectarperDay average daily nitrogen input in the pond [kg N/(ha*d)]
NtoFish buffalo manure nitrogen applied to the fishpond [kg N/d]
NtoSoil buffalo manure nitrogen applied to the rice field [kg N/d]
nullTempsum after weed harvest temperature sum is set to zero [°C/d]
numberofBuff number of buffalos kept on the farm [-]
NumberofChicks number of chicken cultivated on the farm [-]
NumberofPigs number of pigs cultivated on the farm [-]
NUptake nitrogen uptake of the rice plant [kg N/(ha*d)]
offset time beteen start of simulation and rice transplanting [d]
optimalfeeding optimal nitrogen application rate to the fishpond [kg N/(ha*d)]
out fish length is set to zero after fish harvest [cm/d]
PanicleN amount of nitrogen stored in the rice panicles [kg N/ha]
pigAB pig growth constant (food conversion efficiency) [kg/kg]
pigadlib maximal mature ad Libitum food intake of pigs [kg/d]
pigfeeding feeding rate in percent ad libitum food intake of pigs [%]
PigFeedinPercent feeding rate in percent pig body weight [%]
pigfeedrate feeding rate of pigs [kg/d]
pigfooddemand pig food demand according to feeding regime [kg/d]
piggrowthrate growth rate of a single pig [kg/d]
Pigmanure amount of pig manure available for recycling [kg FW]
PigmanureRecycle percentage of recycled pig manure [%]
PigmanureUse amount of recycled pig manure [kg]
pigmanurewaste amount of lost pig manure by not recycling [kg/d]
pigmaxfeed maximum mature food intake of pigs [kg/d]
pigmaxweight maximum mature pig weight [kg]
pigpotential maximal attainable pig growth performance [kg]
pigt' ad Libitum food intake constant for pigs [d]
pigTo pig growth constant [d]
pmanure daily pig manure production in % bodyweight [% LW]
PNUptake panicle nitrogen uptake [kg N/(ha*d)]
Pond fish production [kg FW]
Pondage time within one fish cycle [d]
PondRate cumulative fish produced [kg FW/d]
Pondsize size of the fishpond [ha]
primaryOutputs total primary farm products [kg N]
purchasedChickfood purchased chicken food [kg]
purchasedPigfood purchased pig food [kg]
Radiation daily average incident radiation [MJ/m²]
Recovery fraction of applied fertilizer which is available to the plant [g/g]
recycle produced buffalo mannure that can potentially be recycled [kg DM/d]
Rice primary product [kg N/ha]
Ricebran farm by-product [kg DM]
RiceBranTo_Fish daily amount applied [kg/d]
RicebranUseFish cumulative rice bran applied to fish pond [kg]
RicebranUsePigs cumulative rice bran fed to pigs [kg]
Ricegrowthperiod rice growth period [d]
Ricestraw amount of rice straw harvested [kg/ha]
RicestrawN amount of rice straw nitrogen harvested [kg N/ha]
RiceWastesN amount of rice wastes nitrogen [kg N/ha]
RSR root - shoot ratio [-]
RUR relative nitrogen uptake coefficient [1/d]
singlechickpotential maximal growth performance of chicken [kg/d]
singlechickweight weight of a single chicken [kg]
singlepigweight weight of a single pig [kg]
SoilSupply nitrogen supply by the soil, soil fertility [kg N/(ha*d)]
StartDOY starting day of the simulation, julian date [-]
Stocking stocking density of the fishpond [no./ha]
strawrate amount of rice straw havested [kg/(ha*d)]
TCNUptake total crop nitrogen uptake [kg N/(ha*d)]
Temp daily average temperature to be accumulated [°C/d]
Temp1 daily average temperature (regression) [°C]
Temp2 daily average temperature (tabulated) [°C]
TempSum accumulated temperature sum [°C]
tochicken broken rice fed to chicken [kg/d]
tofish rice bran fed to fish [kg/d]
topigs rice bran fed to chicken [kg/d]
totalBRin broken rice nitrogen harvested [kg N/d]
TotalBrokenriceN total broken rice nitrogen available [kg N]
TotalBuffmanureN total buffalo manure nitrogen available [kg N]
Totalchickproduction total cumulative chicken produced [kg]
TotalCropN total crop nitrogen [kg/ha]
totalInputs all external inputs [kg N]
totalNratio overall simulated nitrogen concentration in the rice plant [-]
TotalOutputs primary and secondary farm products [kg N]
TotalpigmanureN total pig manure nitrogen produced [kg N]
Totalpigproduction total amount of pigs produced [kg]
totalPMin daily pig manure nitrogen recycled [kg N/d]
totalPond overall fish production [kg FW]
totalricebranIn total rice bran nitrogen available [kg N/d]
TotalRicebranN cumulative rice bran nitrogen available [kg N]
totalRicebranUse amount of rice bran recycled [kg]
totalWeedHarvestN total weed nitrogen harvested [kg N]
totalweedin daily bundweed nitrogen recycled [kg N/d]
totalWeeduse amount of bundweeds recycled [kg FW]
WaterTemp first regression of average daily water temperature [°C]
weedgrowth total harvested weeds [kg/d]
weedout weeds consumed by buffalos [kg/d]
WeedRecycle amount of recycled bundweeds [kg]
Weeds cumulative harvested bundweeds [kg]
WSHT rice shoot weight [kg DM/ha]
Yield amount of primary products havested [kg DM/ha]



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