/// <summary>
/// Use the GrazingInputs to initialise the forage object
/// </summary>
/// <param name="forage">The forage object</param>
/// <param name="grazingInput">The grazing inputs</param>
/// <param name="units">The units</param>
public void PassGrazingInputs(ForageInfo forage, GrazType.GrazingInputs grazingInput, string units)
{
double scaleInput;
if (units == "kg/ha") // Convert to kg/ha
{
scaleInput = 1.0;
}
else if (units == "g/m^2")
{
scaleInput = 10.0;
}
else
{
throw new Exception("Stock: Unit (" + units + ") not recognised");
}
if (forage != null)
{
forage.SetAvailForage(GrazType.ScaleGrazingInputs(grazingInput, scaleInput));
}
else
{
throw new Exception("Stock: Forage not recognised");
}
}
/// <summary>
/// Populate the dry matter pool
/// </summary>
/// <param name="model">The stock model</param>
/// <param name="propCode">The property code</param>
/// <param name="useYoung">For young</param>
/// <param name="useAll">For all groups</param>
/// <param name="useTag">For tag number</param>
/// <param name="poolValues">The DM pool value returned</param>
/// <returns>True if the propCode is valid</returns>
public static bool PopulateDMPoolValue(StockList model, int propCode, bool useYoung, bool useAll, bool useTag, ref DMPoolHead[] poolValues)
{
int numPasses;
AnimalGroup animalGroup;
GrazType.DM_Pool pool = new GrazType.DM_Pool();
GrazType.DM_Pool totalPool = new GrazType.DM_Pool();
int denom;
int passIdx, idx;
bool result = true;
for (int i = 0; i < poolValues.Length; i++)
{
poolValues[i] = new DMPoolHead();
}
if (useTag)
{
numPasses = poolValues.Length;
}
else
{
numPasses = 1;
}
for (passIdx = 1; passIdx <= numPasses; passIdx++)
{
GrazType.ZeroDMPool(ref totalPool);
denom = 0;
for (idx = 1; idx <= model.Count(); idx++)
{
if (!useTag || (model.GetTag(idx) == passIdx))
{
if (!useYoung)
{
animalGroup = model.At(idx);
}
else
{
animalGroup = model.At(idx).Young;
}
GrazType.ZeroDMPool(ref pool);
if (animalGroup != null)
{
int n = (int)GrazType.TOMElement.n;
int p = (int)GrazType.TOMElement.p;
int s = (int)GrazType.TOMElement.s;
switch (propCode)
{
case StockProps.prpINTAKE:
pool.DM = animalGroup.AnimalState.DM_Intake.Total;
pool.Nu[n] = animalGroup.AnimalState.CP_Intake.Total / GrazType.N2Protein;
pool.Nu[p] = animalGroup.AnimalState.Phos_Intake.Total;
pool.Nu[s] = animalGroup.AnimalState.Sulf_Intake.Total;
pool.AshAlk = (animalGroup.AnimalState.PaddockIntake.AshAlkalinity * animalGroup.AnimalState.PaddockIntake.Biomass)
+ (animalGroup.AnimalState.SuppIntake.AshAlkalinity * animalGroup.AnimalState.SuppIntake.Biomass);
break;
case StockProps.prpINTAKE_PAST:
pool.DM = animalGroup.AnimalState.DM_Intake.Herbage;
pool.Nu[n] = animalGroup.AnimalState.CP_Intake.Herbage / GrazType.N2Protein;
pool.Nu[p] = animalGroup.AnimalState.Phos_Intake.Herbage;
pool.Nu[s] = animalGroup.AnimalState.Sulf_Intake.Herbage;
pool.AshAlk = animalGroup.AnimalState.PaddockIntake.AshAlkalinity * animalGroup.AnimalState.PaddockIntake.Biomass;
break;
case StockProps.prpINTAKE_SUPP:
pool.DM = animalGroup.AnimalState.DM_Intake.Supp;
pool.Nu[n] = animalGroup.AnimalState.CP_Intake.Supp / GrazType.N2Protein;
pool.Nu[p] = animalGroup.AnimalState.Phos_Intake.Supp;
pool.Nu[s] = animalGroup.AnimalState.Sulf_Intake.Supp;
pool.AshAlk = animalGroup.AnimalState.SuppIntake.AshAlkalinity * animalGroup.AnimalState.SuppIntake.Biomass;
break;
case StockProps.prpFAECES:
GrazType.AddDMPool(animalGroup.AnimalState.OrgFaeces, pool);
GrazType.AddDMPool(animalGroup.AnimalState.InOrgFaeces, pool);
break;
case StockProps.prpINORG_FAECES:
GrazType.AddDMPool(animalGroup.AnimalState.InOrgFaeces, pool);
break;
default:
result = false;
break;
}
}
if (!useTag && !useAll)
{
DMPool2Value(pool, ref poolValues[idx - 1], (propCode == StockProps.prpINORG_FAECES));
}
else if (animalGroup != null)
{
GrazType.AddDMPool(GrazType.MultiplyDMPool(pool, animalGroup.NoAnimals), totalPool);
denom = denom + animalGroup.NoAnimals;
}
}
} // _ loop over animal groups _
if (useTag || useAll)
{
if (denom > 0)
{
totalPool = GrazType.PoolFraction(totalPool, 1.0 / denom);
}
if (useAll)
{
DMPool2Value(totalPool, ref poolValues[0], (propCode == StockProps.prpINORG_FAECES));
}
else
{
DMPool2Value(totalPool, ref poolValues[passIdx - 1], (propCode == StockProps.prpINORG_FAECES));
}
}
}
return(result);
}
/// <summary>
/// Populate the dry matter pool
/// </summary>
/// <param name="Model"></param>
/// <param name="iCode"></param>
/// <param name="bUseYoung"></param>
/// <param name="bUseAll"></param>
/// <param name="bUseTag"></param>
/// <param name="aValue"></param>
/// <returns></returns>
public static bool PopulateDMPoolValue(TStockList Model, int iCode, bool bUseYoung, bool bUseAll, bool bUseTag, ref TDMPoolHead[] aValue)
{
int iNoPasses;
TAnimalGroup aGroup;
GrazType.DM_Pool Pool = new GrazType.DM_Pool();
GrazType.DM_Pool TotalPool = new GrazType.DM_Pool();
int iDenom;
int iPass, Idx;
bool Result = true;
for (int i = 0; i < aValue.Length; i++)
{
aValue[i] = new TDMPoolHead();
}
if (bUseTag)
{
iNoPasses = aValue.Length;
}
else
{
iNoPasses = 1;
}
for (iPass = 1; iPass <= iNoPasses; iPass++)
{
GrazType.ZeroDMPool(ref TotalPool);
iDenom = 0;
for (Idx = 1; Idx <= Model.Count(); Idx++)
{
if (!bUseTag || (Model.getTag(Idx) == iPass))
{
if (!bUseYoung)
{
aGroup = Model.At(Idx);
}
else
{
aGroup = Model.At(Idx).Young;
}
GrazType.ZeroDMPool(ref Pool);
if (aGroup != null)
{
int N = (int)GrazType.TOMElement.N;
int P = (int)GrazType.TOMElement.P;
int S = (int)GrazType.TOMElement.S;
switch (iCode)
{
case StockProps.prpINTAKE:
Pool.DM = aGroup.AnimalState.DM_Intake.Total;
Pool.Nu[N] = aGroup.AnimalState.CP_Intake.Total / GrazType.N2Protein;
Pool.Nu[P] = aGroup.AnimalState.Phos_Intake.Total;
Pool.Nu[S] = aGroup.AnimalState.Sulf_Intake.Total;
Pool.AshAlk = aGroup.AnimalState.PaddockIntake.AshAlkalinity * aGroup.AnimalState.PaddockIntake.Biomass
+ aGroup.AnimalState.SuppIntake.AshAlkalinity * aGroup.AnimalState.SuppIntake.Biomass;
break;
case StockProps.prpINTAKE_PAST:
Pool.DM = aGroup.AnimalState.DM_Intake.Herbage;
Pool.Nu[N] = aGroup.AnimalState.CP_Intake.Herbage / GrazType.N2Protein;
Pool.Nu[P] = aGroup.AnimalState.Phos_Intake.Herbage;
Pool.Nu[S] = aGroup.AnimalState.Sulf_Intake.Herbage;
Pool.AshAlk = aGroup.AnimalState.PaddockIntake.AshAlkalinity * aGroup.AnimalState.PaddockIntake.Biomass;
break;
case StockProps.prpINTAKE_SUPP:
Pool.DM = aGroup.AnimalState.DM_Intake.Supp;
Pool.Nu[N] = aGroup.AnimalState.CP_Intake.Supp / GrazType.N2Protein;
Pool.Nu[P] = aGroup.AnimalState.Phos_Intake.Supp;
Pool.Nu[S] = aGroup.AnimalState.Sulf_Intake.Supp;
Pool.AshAlk = aGroup.AnimalState.SuppIntake.AshAlkalinity * aGroup.AnimalState.SuppIntake.Biomass;
break;
case StockProps.prpFAECES:
GrazType.AddDMPool(aGroup.AnimalState.OrgFaeces, Pool);
GrazType.AddDMPool(aGroup.AnimalState.InOrgFaeces, Pool);
break;
case StockProps.prpINORG_FAECES:
GrazType.AddDMPool(aGroup.AnimalState.InOrgFaeces, Pool);
break;
default:
Result = false;
break;
}
}
if (!bUseTag && !bUseAll)
{
DMPool2Value(Pool, aValue[Idx - 1], (iCode == StockProps.prpINORG_FAECES));
}
else if (aGroup != null)
{
GrazType.AddDMPool(GrazType.MultiplyDMPool(Pool, aGroup.NoAnimals), TotalPool);
iDenom = iDenom + aGroup.NoAnimals;
}
}
} //_ loop over animal groups _
if (bUseTag || bUseAll)
{
if (iDenom > 0)
{
TotalPool = GrazType.PoolFraction(TotalPool, 1.0 / iDenom);
}
if (bUseAll)
{
DMPool2Value(TotalPool, aValue[0], (iCode == StockProps.prpINORG_FAECES));
}
else
{
DMPool2Value(TotalPool, aValue[iPass - 1], (iCode == StockProps.prpINORG_FAECES));
}
}
}
return(Result);
}
/// <summary>
/// Copies a Plant/AgPasture object biomass organs into GrazingInputs object
/// This object may then get scaled to kg/ha
/// </summary>
/// <param name="forageObj">The forage object - a Plant/AgPasture component</param>
/// <returns>The grazing inputs</returns>
private GrazType.GrazingInputs Crop2GrazingInputs(IPlantDamage forageObj)
{
GrazType.GrazingInputs result = new GrazType.GrazingInputs();
GrazType.zeroGrazingInputs(ref result);
result.TotalGreen = 0;
result.TotalDead = 0;
double totalDMD = 0;
double totalN = 0;
double nConc;
double meanDMD;
double dmd;
// calculate the green available based on the total green in this paddock
double greenPropn = 0;
// ** should really take into account the height ratio here e.g. Params.HeightRatio
if (this.PastureGreenDM > GrazType.Ungrazeable)
{
greenPropn = 1.0 - (GrazType.Ungrazeable / this.PastureGreenDM);
}
// calculate the total live and dead biomass
foreach (IOrganDamage biomass in forageObj.Organs)
{
if (biomass.IsAboveGround)
{
if (biomass.Live.Wt > 0 || biomass.Dead.Wt > 0)
{
result.TotalGreen += (greenPropn * biomass.Live.Wt); // g/m^2
result.TotalDead += biomass.Dead.Wt;
// we can find the dmd of structural, assume storage and metabolic are 100% digestible
dmd = (biomass.Live.DMDOfStructural * greenPropn * biomass.Live.StructuralWt) + (1 * greenPropn * biomass.Live.StorageWt) + (1 * greenPropn * biomass.Live.MetabolicWt); // storage and metab are 100% dmd
dmd += ((biomass.Dead.DMDOfStructural * biomass.Dead.StructuralWt) + (1 * biomass.Dead.StorageWt) + (1 * biomass.Dead.MetabolicWt));
totalDMD += dmd;
totalN += (greenPropn * biomass.Live.N) + (biomass.Dead.Wt > 0 ? biomass.Dead.N : 0); // g/m^2
}
}
}
// TODO: Improve this routine
double availDM = result.TotalGreen + result.TotalDead;
if (availDM > 0)
{
meanDMD = totalDMD / availDM; // calc the average dmd for the plant
nConc = totalN / availDM; // N conc
// get the dmd distribution
double[] dmdPropns; // = new double[GrazType.DigClassNo + 1];
// green 0.85-0.45, dead 0.70-0.30
dmdPropns = ForageInfo.CalcDMDDistribution(meanDMD, 0.85, 0.45); // FIX ME: the DMD ranges should be organ- and development-specific values
for (int idx = 1; idx <= GrazType.DigClassNo; idx++)
{
result.Herbage[idx].Biomass = dmdPropns[idx] * availDM;
result.Herbage[idx].CrudeProtein = nConc * GrazType.N2Protein;
result.Herbage[idx].Digestibility = GrazType.ClassDig[idx];
result.Herbage[idx].Degradability = Math.Min(0.90, result.Herbage[idx].Digestibility + 0.10);
result.Herbage[idx].HeightRatio = 1;
result.Herbage[idx].PhosContent = 0; // N * 0.05?
result.Herbage[idx].SulfContent = 0; // N * 0.07?
result.Herbage[idx].AshAlkalinity = 0.70; // TODO: use a modelled value
}
if (forageObj is IPlant plant)
{
switch (plant.PlantType)
{
case "AGPLucerne":
case "AGPRedClover":
case "AGPWhiteClover":
result.LegumePropn = 1;
break;
default:
result.LegumePropn = 0;
break;
}
}
result.SelectFactor = 0; // TODO: set from Plant model value
// TODO: Store any seed pools
}
return(result);
}
