Only the first filtrate sample (Table 3) had a higher amount of P (2.67 g L1) than that in raw manure (1.36 g L1) due to solubility in water of calcium phosphates obtained at this pH
Onlythe first filtrate sample (Table 3) had a higher amount of P(2.67 g L1) than that in raw manure (1.36 g L1) due to solubility inwater of calcium phosphates obtained at this pH