With more than 20 years experience of activity, now Topusing becomes one of the most efficient and reliable fertilizers and plant growth regulators manufacturers and suppliers. Our products have been exporting to over 80 countries; we select superior raw materials, manufactured according to the top standards. Our products include : Single fertilizers (MAP,MKP , SOP, NOP,CN ,CAN , UP,Magnesium nitrate , Ammonium polyphosphate liquid )Compound NPK Water soluble NPK , Liquid fertilizers Organic fertilizers (Humic acid , Potassium Humate , Fulvic acid. Amino acid ,seaweed extract )Chelated Microelements(EDTA Acid , EDTA 2Na, EDTA Zn,Mn,CU,Fe , EDDHA Fe6 , DTPA Fe,...)Trace elements (Copper sulphate , Ferrous sulphate , Magnesium sulphate , Manganese sulphate , Sodium molybdate , Ammonium molybdate , Boric acid , Potassium silicate ...)Slow release fertilizersBase fertilizers