Chinese leading professional producer of Potassium Fertilizer,Calcium Nitrate Fertilizer, Magnesium Fertilizer & NPK fertilizer. We, Knlan Chemical, are the leading Professional producer of NPK, Potassium Fertilizer( Potassium NItrate 13-0-46), Magnesium Fertilzer (Magnesium Nitrate 11-0-0 15MgO), Calcium Fertilizer (Calcium Nitrate (11.7-0-0 23caO) & (15.5-0-0 26CaO) , and DAP, MAP, MKP, UP & ...