The role of green food production
With the continuous improvement of people's living standards, especially people's requirements for improving the quality of life, the world is actively developing green agriculture (ecological organic agriculture) to produce safe and pollution-free green food. In the process of producing green food, chemical fertilizers, chemical pesticides and other chemical substances should not be used or used as little (or limited use) as possible. It requires that the fertilizer must first protect and promote the growth and quality of the application object; secondly, it does not cause the application object to produce and accumulate harmful substances; thirdly, it has no adverse effect on the ecological environment. Microbial fertilizer basically conforms to the above three principles. In recent years, China has made a variety of microbial fertilizers with bacteria with special functions, which can not only alleviate or reduce the pollution of agricultural products, but also improve the quality of agricultural products.
The role of microbial fertilizers in environmental protection
It is an economically feasible and effective way to use the specific functions of microorganisms to decompose and ferment municipal solid waste and agricultural and animal husbandry wastes to make microbial fertilizers. There are mainly two methods that have been applied at present. One is to process a large amount of municipal solid waste as raw materials and directly process them into microbial organic compound fertilizers by factories; ), and then compost various agricultural and animal husbandry materials to speed up the fermentation process, shorten the compost cycle, and improve the quality and maturity of the compost. In addition, microbial fertilizers are used as soil purifiers.
Soil improvement
Beneficial microorganisms in microbial fertilizers can produce sugars, which account for 0.1% of soil organic matter. Combined with plant mucilage, mineral embryos and organic colloids, they can improve soil aggregate structure, enhance soil physical properties and reduce soil particle loss. Under certain conditions, it can also participate in the formation of humus. Therefore, the application of microbial fertilizers can improve soil physical properties, which is beneficial to improve soil fertility.
