The product is composed of many kinds of fermentation bacteria. The main aim is to solve the existing spoilage smell, increase the content of small molecule substance (such as amino acid) , and increase the function of the product after fermentation. It can produce a variety of aromatic metabolites through different metabolic pathways, thus giving a certain aroma; can grow and utilize ammonia-nitrogen under anaerobic conditions, reducing ammonia-nitrogen odor; can produce antibacterial substances, it can inhibit the growth and metabolism of spoilage bacteria and reduce the production of odor, and has a complete enzyme system, which can produce strong neutral, acid, alkaline protease, amylase, cellulase, lipase and other enzymes, can help better processing of protein in raw materials, help to increase the content of amino acids and small molecules in fertilizers, can be directly absorbed and utilized effective phosphorus, effective nitrogen, effective potassium and other components, thus improve the plant nutrition and disease resistance. They also chelate micronutrient and promote their absorption and utilization by plants.