Qiwei Glycine Iron Fertilizer is an organic chelated iron fertilizer produced by China Qiwei Company（www.auson.com.cn）. It contains 95.8% water soluble glycine iron and 18% pure iron. Compared with EDDHA iron fertilizer and EDTA iron fertilizer, it contains 3.5 times more pure iron and has high cost performance. It is the organic chelated iron fertilizer with the highest iron content in China. The QIWEI （www.auson.com.cn）glycine iron fertilizer uses glycine as a chelating agent, not only contains iron elements, but also contains glycine nutrients, and has high plant absorption rate and remarkable effect. It can effectively prevent and correct yellowing caused by iron deficiency, and has the characteristics of wide applicable soil range, good safety effect and the like. Especially in the treatment of flowers yellowing and citrus yellowing, chelated iron has remarkable effects that other iron fertilizers do not have.
Previously, there were many forms of inorganic salts, such as ferrous sulfate, used to supplement iron elements in crops. However, there were many disadvantages (such as ferrous sulfate is easily converted into trivalent iron under natural conditions and loses its function). The application range is narrow, the efficiency is low, and the absorption rate of crops is low. Moreover, due to the alkaline reaction and redox reaction of soil itself, insoluble hydroxides are formed, thus reducing its biological activity. Not only can it not supplement trace elements, but also it can cause soil hardening, which is not conducive to environmental protection and sustainable development of agriculture. Later, the application of chelated EDHA iron and EDDHA iron has made great progress compared with ferrous sulfate, but the iron content is low, only 4.8-6%, and the effect is still not ideal. In addition, EDTA and EDDHA are both inorganic chelating agents, so the crops are not well absorbed and the farmers are not satisfied with the results.
Glycine iron fertilizer is not widely used in agricultural production due to its relatively high price. With the gradual acceptance of the market, I believe farmers will use this high-quality iron fertilizer more and more.