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土壤有机质是构成土壤肥力的重要因素之一,而有机质在土壤中数量的维持,主要取决于有机残体——作物秸秆等的还田数量和在土壤中的分解速度。我国农民素有沤制和使用秸秆肥维持地力的传统,但是,长期以来由于施入土壤中的机质数量减少,质量较差,加之频繁耕耘加速了土壤微生物的活动和有机质的分解[1],从而造成了收少支多的不平衡现象。黄准海等地区的土壤大多含有机质低(一般在0.5—1.0%以内),
Soil organic matter is one of the important factors that make up soil fertility. The maintenance of organic matter in soil mainly depends on the amount of organic residues such as crop stalks and the rate of soil decomposition. However, for a long time, the quantity of organic matter applied to the soil was reduced and its quality was poor. In addition, the frequent cultivation accelerated the activities of soil microorganisms and the decomposition of organic matter [1] , Resulting in the imbalance of income and expenditure. Huang Zhunhai and other regions of the soil mostly contain low organic matter (usually within 0.5-1.0%),