With natural organic substances as raw materials, amino acid is a chelating agent, It is a kind of organic fertilizer after the process of fermentation, filtration, extraction, and a variety of processes that refined them.The quality of the raw materials is high, and the formula is scientific.It is rich in humic acid, amino acid and nitrogen, phosphorus, potassium and other major elements and trace elements, It helps to regulate soil, strengthen the root, increase the amount of dry matters in crops, increase yield and improve quality, It also helps with the resistance against the coldness and has other effects. Execution standard: NY1106-2010