Assertion: manure | /r/HasProperty | calculated
Facets:
Source sentences:
text: If the soil test P level is low, the manure or compost rate should be calculated to meet the pasture need for N because such an application will tend to allow for building soil P fertility.
text: But if the soil P level is already in the optimum range, the manure or compost rate should be calculated to meet the pasture need for P maintenance.