... % Single Super Phosphate fertilizer 1,Valid P2O5:16.0% 2,Calcium:19-25% 3,Free Phosphoric acid:4.50 ... % 4,Moisture:3.0% 16% Single Super Phosphate fertilizer 1, Other ... Valid P2O5:16.0 pct min 10, Free Phosphoric acid:4.50 pct max 11, Calcium:19-25 ... , Fused Magnesium Phosphate FMP fertilizer and Single Super Phosphate SSP fertilizer, Potassium Phosphate Monobasic MKP ...