... fertilizers such as NPK compound fertilizer, composts, Nitrogenou fertilizer(ammonium sulphate, ammo di ammonium ... of formular fertilizers(NPK), water soluble fertilizer, chemical fertilizer, humic acid fertilizer, slow-release fertilizer, ammonium sulphate, potassium sulphate,potassium ... to the demand of customers. Lvfeng Fertilizer Product ListProduct FormulationAppearanceORGANIC FERTILIZERSN.P.K. ...