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土壤有机质指土壤中以各种形式存在的含碳有机化合物,是土壤的重要组成部分,是衡量土壤肥力高低的重要指标,对土壤的理化性状及肥力因素具有较大的影响。近年来,由于大量施用化肥,少施或不施用有机肥,严重影响了土壤对农作物的有效供给,粮食产量难以提高。因此,提升土壤有机质势在必行。增施有机肥有机肥是很好的土壤改良剂,它既能熟化土壤,保持土壤的良好结构,又能增强土壤的保肥供肥和缓冲能力,不断供给作物生长需要的养分,为
Soil organic matter refers to the various forms of carbon-containing organic compounds present in the soil and is an important part of the soil. It is an important indicator of soil fertility and has a great impact on soil physical and chemical properties and fertility factors. In recent years, due to the large amount of chemical fertilizers applied, the application of organic fertilizers with little or no application seriously hinders the effective supply of crops to the soil and the yield of grain is hard to be increased. Therefore, to promote soil organic matter is imperative. Organic fertilizer application of organic fertilizer is a good soil improver, it can not only mature soil, maintain the good structure of the soil, but also enhance soil fertility and buffering capacity, continuous supply of crop nutrients needed for the