... Granular 2.0-4.0mmNPK fertilizerN12 P12 K17Fertilizer is a material that is added to the soil to supply one or ... elements are nitrogen, potassium and phosphorus), the secondary elements are calcium, sulfur, magnesium, and other elements are boron, manganese, ... mono and dibasic ammonium phosphates (containing nitrogen and phosphate), calcium ammonium nitrate, potassium chloride (muriate of potash).