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土壤有机质是土壤的重要组成成分,它与土壤团粒结构的数量和质量有很大的关系。绿肥能提供大量的有机物质,经过分解,能在土壤中形成一定量的土壤有机质,它促进团粒结构的形成,使团聚体的数量和质量有一定的增加。绿肥中富集的钙素和根系分泌的有机物质,对土壤团粒结构的形成也有促进作用。土壤团聚体的增加,改善了土壤的理化性状,使土壤保水、透水、保肥能力都加强,土
Soil organic matter is an important component of soil, which has a great relationship with the quantity and quality of soil aggregate structure. Green manure can provide a large amount of organic matter, after decomposition, can form a certain amount of soil organic matter in the soil, which promotes the formation of aggregate structure and increases the quantity and quality of aggregates. The accumulation of calcium in green manure and the organic matter secreted by the root also promote the formation of soil aggregate structure. Soil aggregates increased to improve the physical and chemical properties of the soil, so that the soil water, water permeability, fertility are strengthened, soil