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所谓“保护性耕作技术” ,特指能保护生态环境的耕作技术。其主要特征 :作物收获之后进行深松作业 ,使土壤的犁底层松动但并不翻转表层 ;作物播种时在留有残茬秸秆的田中直接下种 ,不破坏土壤的表层结构。保护性耕作技术的实质性特点是 :历年的作物秸秆不断地在土壤表层上累积
The so-called “conservation tillage technology”, especially to protect the ecological farming techniques. Its main features: subsoiling operation after harvesting of the crops, loosening of the plow bottom layer of the soil but not turning over the surface layer; directly sowing the crops in the field with stubble stubble left without damaging the surface structure of the soil. The essential features of conservation tillage technology are: Crop stalks continue to accumulate on the soil surface over the years