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土壤有机质是土壤肥力的物质基础之一,不仅是土壤养分的主要来源,而且对土壤的理化性质、生物学性质及各个肥力因素,都有重要的影响。因此,它是衡量土壤肥力高低的一项重要指标。为了保持水稻高产稳产时土壤中适宜的有机质含量,首先须了解土壤每年有机质的消耗量,予测土壤有机质含量的变化。为有计划地合理施用有机肥料提供科学依据。
Soil organic matter is one of the material bases of soil fertility. It is not only the main source of soil nutrients, but also has an important influence on soil physical and chemical properties, biological properties and various fertility factors. Therefore, it is a measure of the level of soil fertility is an important indicator. In order to maintain the suitable organic matter content of soils in rice with high and stable yield, we must first understand the annual organic matter consumption and the change of soil organic matter content. To provide a scientific and rational basis for the rational use of organic fertilizers.