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ji xie hua bao hu xing geng zuo ji shu yu jie ben zeng xiao
Author(s): 
Pages: 113
Year: Issue:  2
Journal: Farm Machinery Using & Maintenance

Abstract:  保护性耕作技术是对农田实行免耕,少耕,尽可能减少土壤耕作,并保证作物收获后留有25cm以上的根茬,地表有不低于30%的作物秸秆,残茬覆盖,实行免耕播种,用化学结合机械的方法防治病虫草害的耕作技术.保护性耕作四项关键技术作用:一是秸秆残茬与表土处理技术的作用.
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