【摘要】 阐述了国内外保护耕作技术的研究进展,分析了保护耕作对作物产量、土壤性状、土壤水分利用的效应以及对作物病虫草害的影响和控制水土流失的作用,提出我国推行保护耕作应注意的关键问题。更多还原

【Abstract】 The research progress on conservation tillage at home and in the world are stated and the effects of conservation tillage on crop yield, soil erosion, soil properties, water use efficiency, crop disease, pest and weed are analyzed. Finally, some key technical issues for the adoption of conservation tillage in China are emphasized.更多还原