private Task <CalcManureViewModel> GetManureAsync(string fldName)
{
CalcManureViewModel mvm = new CalcManureViewModel();
mvm.manures = new List <DisplayNutrientManure>();
List <NutrientManure> fldManures = _ud.GetFieldNutrientsManures(fldName);
foreach (var m in fldManures)
{
DisplayNutrientManure dm = new DisplayNutrientManure()
{
fldName = fldName,
manId = m.id,
matType = _ud.GetFarmManure(Convert.ToInt32(m.manureId)).name,
applType = _sd.GetApplication(m.applicationId).name,
rate = m.rate.ToString() + " " + _sd.GetUnit(m.unitId).name,
yrN = m.yrN.ToString(),
yrP = m.yrP2o5.ToString(),
yrK = m.yrK2o.ToString(),
ltN = m.ltN.ToString(),
ltP = m.ltP2o5.ToString(),
ltK = m.ltK2o.ToString(),
};
mvm.manures.Add(dm);
}
return(Task.FromResult(mvm));
}
public NutrientInputs GetNutrientInputs(NutrientInputs nutrientInputs)
{
FarmManure mymanure = _ud.GetFarmManure(Convert.ToInt32(manure));
ConversionFactor _cf = _sd.GetConversionFactor();
decimal potassiumAvailabilityFirstYear = _cf.potassiumAvailabilityFirstYear;
decimal potassiumAvailabilityLongTerm = _cf.potassiumAvailabilityLongTerm;
decimal potassiumKtoK2Oconversion = _cf.potassiumKtoK2Oconversion;
decimal phosphorousAvailabilityFirstYear = _cf.phosphorousAvailabilityFirstYear;
decimal phosphorousAvailabilityLongTerm = _cf.phosphorousAvailabilityLongTerm;
decimal phosphorousPtoP2O5Kconversion = _cf.phosphorousPtoP2O5Kconversion;
decimal lbPerTonConversion = _cf.lbPerTonConversion;
decimal tenThousand = 10000;
// get conversion factor for selected units to lb/ac
Unit myunit = _sd.GetUnit(applicationRateUnits);
decimal conversion = myunit.conversion_lbton;
// for solid manures specified in cubic yards per ac, convert application rate to tons/ac
if (myunit.id == 6 && mymanure.solid_liquid.ToUpper() == "SOLID")
{
Manure manure = _sd.GetManure(mymanure.manureId.ToString());
applicationRate = applicationRate * manure.cubic_Yard_Conversion;
}
// get potassium first year
nutrientInputs.K2O_FirstYear = Convert.ToInt32(decimal.Multiply(applicationRate, mymanure.potassium)
* lbPerTonConversion
* potassiumKtoK2Oconversion
* potassiumAvailabilityFirstYear
* conversion);
// get potassium long term
nutrientInputs.K2O_LongTerm = Convert.ToInt32(decimal.Multiply(applicationRate, mymanure.potassium)
* lbPerTonConversion
* potassiumKtoK2Oconversion
* potassiumAvailabilityLongTerm
* conversion);
// get phosphorous first year
nutrientInputs.P2O5_FirstYear = Convert.ToInt32(decimal.Multiply(applicationRate, mymanure.phosphorous)
* lbPerTonConversion
* phosphorousPtoP2O5Kconversion
* phosphorousAvailabilityFirstYear
* conversion);
// get phosphorous long term
nutrientInputs.P2O5_LongTerm = Convert.ToInt32(decimal.Multiply(applicationRate, mymanure.phosphorous)
* lbPerTonConversion
* phosphorousPtoP2O5Kconversion
* phosphorousAvailabilityLongTerm
* conversion);
// get N values
// Organic N% = Total N% - NH4-N ppm / 10,000
decimal organicN = mymanure.nitrogen - (Convert.ToDecimal(mymanure.ammonia) / tenThousand);
NOrganicMineralizations nOrganicMineralizations = new NOrganicMineralizations();
int regionid = _ud.FarmDetails().farmRegion.Value;
Region region = _sd.GetRegion(regionid);
nOrganicMineralizations = GetNMineralization(mymanure.id, region.locationid);
nOrganicMineralizations.OrganicN_FirstYear = firstYearOrganicNAvailablityPct / 100; // get data from screen
//decimal ammoniaRetention = GetAmmoniaRetention(mymanure.id, Convert.ToInt32(applicationSeason));
decimal ammoniaRetention = ammoniaNRetentionPct / 100; // get data from screen
// N 1st year lb/ton = [NH4-N ppm/10,000 * NH4 retention + NO3-N/10,000 + Organic N % * 1st yr Mineralization] * 20
decimal a = decimal.Divide(mymanure.ammonia, tenThousand) * ammoniaRetention;
decimal b1 = decimal.Multiply(organicN, nOrganicMineralizations.OrganicN_FirstYear);
//E07US20
decimal c1 = a + b1 + Convert.ToDecimal(mymanure.nitrate) / tenThousand;
decimal N_Firstyear = decimal.Multiply(c1, lbPerTonConversion);
nutrientInputs.N_FirstYear = Convert.ToInt32(applicationRate * N_Firstyear * conversion);
// same for long term
decimal b2 = decimal.Multiply(organicN, nOrganicMineralizations.OrganicN_LongTerm);
//E07US20
decimal c2 = a + b2 + Convert.ToDecimal(mymanure.nitrate) / tenThousand;
decimal N_LongTerm = decimal.Multiply(c2, lbPerTonConversion);
nutrientInputs.N_LongTerm = Convert.ToInt32(applicationRate * N_LongTerm * conversion);
return(nutrientInputs);
}