Best fertilizer 15 15 15 npk compound fertilizer NPK Compound fertilizer is a type of fertilizer containing two or three nutrient of nitrogen, phosphate,and potassium.The main raw material have ammonium sulphate, urea,potassium sulfate, potassium chloride,potassium nitrate,mono ammonium phosphate and so on.Currently our production technology includes:spray granulation,steam granulation,extrusion granulation. NPK Compound fertilizer can supply two or three main nutrients and trace elements,its nutrient release uniformly,its efficiency is stable and long and has less disadvantage on the soil.In general the appearance is granule with low hygroscopicity and not easy to agglomerate. It’s easy to store and transport so you can save costs.. NPK Compound Fertilizer Appearance Granule Item Standard…