土壤微生物作为土壤分解系统中必不可少的一部分，对于土壤结构的形成具有重

As an essential part of the soil decomposition system, soil microorganisms play an important role in the formation of soil structure. They carry out processes such as oxidation, ammoniation, nitrification, sulfide and nitrogen fixation in the soil to promote the decomposition of soil organic matter and the transformation of nutrients , Making the energy flow and nutrient circulation in the soil more adequate (Zhang Hanbo et al., 2003). Because the change of soil microenvironment can significantly affect the change of soil microorganisms, with the change of soil ecological mechanism and environmental stress, the composition of soil communities can also change rapidly. Fertilization, as an important agricultural management measure, plays a decisive role in the difference in soil physical and chemical properties. Different fertilization measures lead to changes in the stability of soil organic matter by affecting the basic physical and chemical properties of the soil and nutrient content, which in turn affects the soil microbial community using this organic matter Changes in structure and microbial biological activity

Soil microorganisms, as an essential part of soil decomposition system, play an important role in the formation of soil structure, they carry out oxidation, ammonia, nitrification, vulcanization and nitrogen fixation processes in the soil, promote the decomposition of soil organic matter and the conversion of nutrients, so that the soil energy flow and nutrient circulation is more fully (Zhang Hanbo, 2003). Because the change of soil microenvironment can significantly affect the change of soil microorganism, the composition of soil community can change rapidly with the change of soil ecological mechanism and environmental stress. As an important agricultural management measure, fertilization plays a decisive role in the difference of soil physical and chemical properties, and different fertilization measures cause changes in soil organic matter stability by affecting the basic physical and chemical properties of soil and nutrient content, which in turn affects the changes in the structure of soil microbial community and biological activity of microorganisms using this organic matter.

As an essential part of soil decomposition system, soil microorganisms play an important role in the formation of soil structure. They carry out oxidation, ammoniation, nitrification, sulfuration and nitrogen fixation in the soil, promote the decomposition of soil organic matter and the transformation of nutrients, and make the energy flow and nutrient circulation in the soil more adequate (Zhang Hanbo et al., 2003). Because the change of soil micro environment can significantly affect the change of soil microorganism, with the change of soil ecological mechanism and environmental stress, the composition of soil community can also change rapidly. As an important agricultural management measure, fertilization plays a decisive role in the difference of soil physical and chemical properties. Different fertilization measures affect the stability of soil organic matter by affecting the basic physical and chemical properties and nutrient content of soil, and then affect the change of soil microbial community structure and microbial biological activity using this organic matter