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shen song he shen song ji ju
Pages: 10-12
Year: Issue:  10
Journal: Farm Machinery

Keyword:  深松草甸白浆土犁底层透水性能蓄水能力高产稳产顺梁草甸黑土土壤养分土壤孔隙度;
Abstract: <正> 红兴隆管局所属农场的土壤,多数为草甸黑土、草甸白浆土和岗地白浆土,由于连年耕翻、湿地作业,结果在耕层下形成了坚硬的犁底层。使土壤既不抗涝又不抗旱,水、肥、气、热状态变劣,是造成单产不高,总产不稳的原因之一。为了改变土壤的状况,使粮食高产稳产,实行深松耕法是一项有效的措施。深松耕法能加深耕作层,打破犁底层,形成有虚有实的耕层;增强了耕层土壤的蓄水能力,改善了底层土壤的透水性能,既有利于蓄水防旱,又利于渗水防涝;在3~5°的坡地上能控制地表泾流,防
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