保护性耕作是相对于传统翻耕祼露休闲的一种新型耕作技术,是相对传统精耕细作的一种变革,我国对于保护性耕作的定义是对农田实行免耕、少耕,尽可能减少土壤耕作(减少到种子能够出苗即可),并用作物秸秆覆盖地表,减少土壤风蚀、水蚀,提高土壤肥力和抗旱能力的一项先进农业耕作技 Conservation tillage is a new tillage technology relative to traditional tillage and leisure. It is a change relative to the traditional intensive cultivation. Our country’s definition of conservation tillage is to implement no-tillage and less tillage on farmland and minimize soil tillage (Reduced to the seeds can emerge), and use of crop straw covering the surface, reduce soil erosion, water erosion, improve soil fertility and drought tolerance of an advanced farming technology