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土壤有机质是土壤养分的重要组成部分,是植物生长所需各种养分的来源,土壤的许多属性都直接或间接地与土壤有机质相关,所以它的含量是土壤肥力高低的重要指标。为了揭示绿肥在灰漠土中的分解特点和残留量,评价它在保持和促进土壤有机质平衡中的作用,为今后合理利用绿肥提供依据,我们于1982—1985年采用盆栽试验研究不同绿肥在土壤中的腐解和残留对土壤有机质含量的影响。
Soil organic matter is an important component of soil nutrients and a source of nutrients for plant growth. Many of the soil properties are directly or indirectly related to soil organic matter, so its content is an important indicator of soil fertility. In order to reveal the decomposing characteristics and residual amount of green manure in gray desert soil and evaluate the role of green manure in maintaining and promoting the balance of soil organic matter, we provide the basis for rational use of green manures in the future. In 1982-1985, we used pot experiment to study the effect of different green manures on soil Effect of Decomposition and Residue on Soil Organic Matter Content.