Soil organic matter content is one of the important indicators to measure soil fertility. It plays an important role in providing nutrients needed for crop growth, improving soil structure, and increasing soil water conservation. Application of organic fertilizer is an effective method to accelerate the accumulation of soil organic matter. For soil nutrient content, soil nutrient analyzer can be used for effective measurement, which provides data support for soil fertility research.
Under the action of microorganisms, green manure gradually decomposes and releases nutrients for crop absorption and utilization, and gradually transforms into humus and participates in the circulation of soil organic matter. In this experiment, the soil nutrient analyzer mainly applied the chemical fertilizer or single application of Ziyun Ying to overturned Ziyunying to increase soil organic matter content. The combination of fertilizer and Ziyunying overturning can increase soil total nitrogen content at the same time. Single application of chemical fertilizer is not conducive to the accumulation of soil organic matter and total nitrogen. The combination of chemical fertilizer and milk vetch can significantly increase the content of soil available nitrogen. This is due to the accumulation of a large number of rhizobia in the roots of legume green manure, which has a strong biological nitrogen effect. After the green manure is returned to the soil, the soil can be increased by microbial decomposition. Nitrogen content for crop absorption and utilization. Compared with ck, the amount of soil bacteria treated with chemical fertilizer alone increased significantly, while the fungus had a strong dependence on soil nutrients. This phenomenon can be verified from the analysis of the correlation between microbial population and soil nutrients. Single application of chemical fertilizer or single application of Ziyun Ying is not conducive to the growth and reproduction of soil fungi and actinomycetes. In addition to MV+60%F treatment, the bacteria also showed this rule. Winter manure green manure could increase soil microbial population. The conclusion is that winter manure can increase soil bacteria, fungi and actinomycetes.
Through the soil nutrient measuring instrument, it was found that long-term winter green manure not only directly increased aboveground and root biomass and root exudates, but also promoted the growth of microorganisms. At the same time, the green manure increased the soil nutrients after turning into the soil, but also provided sufficient microorganisms. The carbon source and soil microbial population were higher than in winter.
Under the action of microorganisms, green manure gradually decomposes and releases nutrients for crop absorption and utilization, and gradually transforms into humus and participates in the circulation of soil organic matter. In this experiment, the soil nutrient analyzer mainly applied the chemical fertilizer or single application of Ziyun Ying to overturned Ziyunying to increase soil organic matter content. The combination of fertilizer and Ziyunying overturning can increase soil total nitrogen content at the same time. Single application of chemical fertilizer is not conducive to the accumulation of soil organic matter and total nitrogen. The combination of chemical fertilizer and milk vetch can significantly increase the content of soil available nitrogen. This is due to the accumulation of a large number of rhizobia in the roots of legume green manure, which has a strong biological nitrogen effect. After the green manure is returned to the soil, the soil can be increased by microbial decomposition. Nitrogen content for crop absorption and utilization. Compared with ck, the amount of soil bacteria treated with chemical fertilizer alone increased significantly, while the fungus had a strong dependence on soil nutrients. This phenomenon can be verified from the analysis of the correlation between microbial population and soil nutrients. Single application of chemical fertilizer or single application of Ziyun Ying is not conducive to the growth and reproduction of soil fungi and actinomycetes. In addition to MV+60%F treatment, the bacteria also showed this rule. Winter manure green manure could increase soil microbial population. The conclusion is that winter manure can increase soil bacteria, fungi and actinomycetes.
Through the soil nutrient measuring instrument, it was found that long-term winter green manure not only directly increased aboveground and root biomass and root exudates, but also promoted the growth of microorganisms. At the same time, the green manure increased the soil nutrients after turning into the soil, but also provided sufficient microorganisms. The carbon source and soil microbial population were higher than in winter.
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