【摘要】 针对传统机械化耕作方法存在的问题 ,提出了以培肥地力为核心 ,结合秸秆根茬粉碎还田 ,实行秋翻、灭茬、深松 3年轮换的机械化土壤耕作制度。这种耕作制度能打破多年秋翻形成的坚硬犁底层 ,改善土壤理化性状 ,增强土壤蓄水保肥能力 ,减少土壤耕作环节的物质和能源消耗 ,降低农业生产成本 ,提高经济效益与生态效益。更多还原

【Abstract】 The problems in conventional mechanized tillage practice were discussed A new mechanized soil tillage system was put forward, in which the increase of soil fertility was stressed accompanied by the returning of the smashed stubble into soil; a cycle of three years with turning up the soil in autumn, cleaning the stubble and deeply loosing the soil In such system the hard plough pan could be broken, the chemical and physical properties of soil could be improved, water capacity of the soil could be increased and the consumption of both materials and energy could be reduced, thus the cost of production and the economic and ecological benefit could be increased更多还原