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黑土和黑钙土是东北地区的主要农业土壤,土质肥沃,生产潜力大,是我国粮豆生产的重要基地。黑土和黑钙土肥力重要标志之一是结构性好,水稳性团粒结构较其他土壤多。本文仅就土壤有机无机复合体与几种黑土和黑钙土结构性能及肥力之间的关系进行探讨。 供试土壤的采集地点是,南部黑土采自哈尔滨,北部黑土分别采自黑龙江省北安县赵光的荒地及开垦14年的耕地,草甸黑土亦取自赵光的荒地,典型黑钙土由黑龙江省龙江县朱家坎集,碳酸盐黑钙土在黑龙江
Black soil and chernozem are the major agricultural soils in Northeast China with fertile soil and great potential for production. They are important bases for the production of grain in our country. One of the most important symbols of fertility of black soil and calcareous soil is its good structure and more water-stable crumb structure than other soils. This article only discusses the relationship between soil organic-inorganic complex and the structure and fertility of several black and calcareous soil. The test sites were collected from the southern black soil in Harbin and the northern black soil in the wasteland of Zhao Guang of Bei’an County in Heilongjiang Province and cultivated land reclaimed for 14 years respectively. The black meadow soil was also taken from the wasteland of Zhao Light. Longjiang County, Heilongjiang Province Zhujiakan set, carbonate Chernozem in Heilongjiang