The Chelated Micro Element is formulated with material of EDTA, Fe, Zn, Cu, Ca, Mg, Mn by the proess of curing, chelating, concentration, evaporation, granulating. After the chelation with EDTA, the product is exist in free state. As fertilizer, it has the feature of quick solubility, easy absorption by crops, low dosage but high efficiency, non-residue. As material, in the formulation of NPK compound fertilizer of other liquid fertilizer, it has the advantage of easy mixture, non-antagonism, and easy processing. The most important function of micro-element fertilizer is to correct the deficiency, which other element can not replace. Our product can increase the efficency when using it together with big quantity NPK fertilizer.