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土壤是能重复利用的农业资源。土壤中生活着种类繁多、数量巨大的土壤微生物,据测定每一克土壤中就含有300-500万个微生物。土壤作为微生物生活的环境,在适宜的条件下,这些微生物繁殖极快,活动旺盛,它们对施入或土壤中残留的有机质的分解、腐殖质的形成、养分的活化、释放、保持及土壤结构的形成、理化性状的改善都有重要作用。土壤中的微生物群,就像隐形保姆一样,是维护土壤健康的重要因素,起到了保护土壤生产力的不可替代的作用。
Soil is a reusable agricultural resource. The soil is home to a huge variety of soil microorganisms, which are found to contain between 3 and 5 million microorganisms per gram of soil. Soil, as a living environment for microorganisms, reproduces extremely rapidly and vigorously under appropriate conditions, and their activity on the decomposition, humus formation, nutrient activation, release, maintenance and soil structure of organic matter applied to or in the soil Formation, physical and chemical properties have an important role in improving. Microorganisms in the soil, like invisible babysitters, are important factors in maintaining soil health and play an irreplaceable role in protecting soil productivity.