保护性耕作技术是众多减少土壤侵蚀方法中的一种。从广义上来说,保护性耕作是对一种耕作体系的定义,是指在作物收获后,将足够的谷物秸秆覆盖在地表以保护土壤不被侵蚀。总的来说,覆盖量达到30%时,就被认为是保护性耕作。根据土壤类型、谷物轮作方式、冬季作物以及其他的因素,秸秆覆盖方式有所不同。 Conservation tillage technology is one of many ways to reduce soil erosion. Broadly speaking, conservation tillage is the definition of a tillage system in which, after harvesting of the crop, enough grain straw is placed on the ground to protect the soil from erosion. In general, covering up to 30% is considered conservation tillage. Depending on the type of soil, the rotation of cereals, winter crops and other factors, there are differences in the ways straw is mulched.