摘要
保护性耕作是在少耕、免耕基础上发展起来的一种土壤耕作方式。其主要内容是作物收获后残茬、秸秆留在田间覆盖地面,春季不进行整地,使用免耕播种机进行播种,喷施化学药剂防治病虫草害,尽量减少机械进田次数,保护耕层土壤的自然结构,实现经济、生态、社会效益的有机统一。
protected cultivation is a kind of soil cultivation methods on the basis of less cultivation and free of cultivation. The contents mainly are making crop remains and straw remain in the field after harvest, not soil preparation in spring, using free of cultivation seeder to sow, spraying chemical drug to prevent the harm of disease, worms and rank grass, reducing the times of machine entering the field, protecting the natural structure of cultivation soil, and achieving the organic unite of economy benefit, ecology benefit and society benefit.
出处
《吉林农业科技学院学报》
2008年第2期22-23,共2页
Journal of Jilin Agricultural Science and Technology University
关键词
保护性耕作
少耕
免耕
秸秆覆盖
protected cultivation
protected cultivation
free of cultivation
straw cover