Fig. 2. Relationship between the increase in (a) CaCl2–P and (b) resin P and change in exchangeable Ca (
Ca) for soils following incubation with poultry litter, poultry manure, and sewage sludge applied at 100 mg P kg-1 soil.
Fig. 2. Relationship between the increase in (a) CaCl2–P and (b) resin P and change in exchangeable Ca (Ca) for soils following incubation with poultry litter, poultry manure, and sewage sludge applied at 100 mg P kg-1 soil.