黑土肥力变化特点及其与土壤复合胶体性质的关系
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THE CHARACTERISTICS OF VARIATION OF BLACK SOIL FERTILITY IN RELATION TO THE PROPERTIES OF SOIL COLLOIDAL COMPLEX
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    摘要:

    黑土占黑龙江省耕地面积一半以上,是肥沃的土壤.但是,开垦后用养结合不好,土壤肥力呈现明显下降的趋势.本文拟从研究黑土肥力下降及其与土壤复合胶体的关系,以及有机质培肥黑土的效果及其对土壤复合胶体的影响,探索黑土肥力下降原因及培育高产黑土的技术途径,以便为快速培育高产黑土提供科学依据.为此,我们采集不同开垦年限的黑土和施用有机质不同程度培肥的黑土,进行了比较研究.

    Abstract:

    Owing to long duration of cultivation and mismanagement of black soils, the quantity and quality of organic matter and other main indices of soil fertility were decreased gradually. At the same time the properties of colloidal complex, contents of organic matter and nutrients, buffer capacity and water- and nutrient-holding capacity were decreared, and the absorbing capacity of phosphorous was increased. While with the increasing of the quantity of organic matter and regeneration and improvement in the quality of organic matter in soil by application of organic manure, some indices of soil fertility were increased correspondingly. At the same time the properties of the colloidal complex were improved, the contents of organic matter and nutrients, availability of phosphorous, buffer capacity, water and nutrient-holding capacity were increased, and combined status of humus was also improved, which brought about the promotion of the fertility of black soils.

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李庆民,尹达龙.黑土肥力变化特点及其与土壤复合胶体性质的关系[J].土壤学报,1982,19(4):351-359. Li Qing-ming, Yin Da-long. THE CHARACTERISTICS OF VARIATION OF BLACK SOIL FERTILITY IN RELATION TO THE PROPERTIES OF SOIL COLLOIDAL COMPLEX[J]. Acta Pedologica Sinica,1982,19(4):351-359.

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  • 在线发布日期: 2013-02-25
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