status(low_input, under_supplied).
status(balanced_loam, balanced).
status(sandy_high, over_supplied).
status(clay_surplus, over_supplied).
availableN_kg_ha(low_input, 58.5).
availableN_kg_ha(balanced_loam, 110.0).
availableN_kg_ha(sandy_high, 117.0).
availableN_kg_ha(clay_surplus, 147.20000000000002).
deficitN_kg_ha(low_input, 51.5).
deficitN_kg_ha(balanced_loam, 0.0).
deficitN_kg_ha(sandy_high, 0.0).
deficitN_kg_ha(clay_surplus, 0.0).
surplusN_kg_ha(sandy_high, 12.0).
surplusN_kg_ha(clay_surplus, 27.200000000000017).
surplusN_kg_ha(low_input, 0.0).
surplusN_kg_ha(balanced_loam, 0.0).
leachingIndex(sandy_high, 4.1999999999999993).
leachingIndex(clay_surplus, 2.1760000000000015).
leachingIndex(low_input, 0.0).
leachingIndex(balanced_loam, 0.0).
highestLeachingRisk(field_nitrogen_balance, sandy_high).