华北平原一年两熟区保护性耕作技术研究进展

冬小麦-夏玉米一年两熟的种植方式在华北平原区的农业生产中占有极为重要的地位，但传统耕作方式使该区的农业生产不可持续。保护性耕作是一种先进的保水保土的生产技术，对该区的农业可持续发展作用甚大。阐述了保护性耕作的定义、原理及保护性耕作的历史与发展，归纳总结了保护性耕作对播种、出苗、田间杂草、作物生长发育及作物产量等方面的影响研究。以期为华北平原一年两熟区的保护性耕作研究提供一定的参考。

Review on Conservation Tillage of Double Cropping System in North China Plain

Wheat-Maize double cropping system played a very important role in agriculture production in North China Plain, but the traditional tillage method has hindered sustainable agricultural development. Conservation tillage technology is an advanced technology which can protect soil from erosion and can keep soil moist, and is a key technology for keeping the development of sustainable agricultural in this area. In order to offer reference for extension of conservation tillage of two crops a year in North China Plain, this article introduced the definition,principle, history and development of conservation tillage and concluded the influence of conservation tillage system on insemination,emergence,farmland weed,crops growth development and crops yield.