... composts, Nitrogenou fertilizer(ammonium sulphate, ammo fertilizer npk 20-10-10Complete Compound Fertilizer Formula Flexible Fertilizerfertilizer as a ... each nutrient required. Absolute precision is not necessary in view of soil variability even within the same field.Complex ... 18-18-18, NPK 19-19-19, NPK 20-20-20, NPK 28-14-14, NPK 6-12-36, NPK ... 20-10-10, NPK 16-8-24, NPK 11 ...