This product is weak acid aqueous solution with high purity and low conductivity value.it can improve nutrient absorptivity of crop and suitable for saline-alkali soil but can not burn leaves and roots of crop.chlorine is not included in accumulation of lower salt,special suitable for fear-chlorion crops.like:tobacco,flowers and plants,potato.this is high-tech products,that applied LLD-HK technology in fertilizer and guarantee fast dissolved,fully absorbed,soil conservation.besides,added Japan AM nitrification inhibitor,it controls nitration reaction speed of ammoniacal nitrogen,reduce nitrogen losses,improve the utilization of nitrogen fertilizer.