保护性耕作技术是在地表被作物的秸秆和残茬(以下简称“秸秆”)所覆盖情况下,对农田实行免耕、少耕并实施免耕播种的一种农业种植技术。该技术在美国、澳大利亚、加拿大和巴西等国家已比较成熟,我国从二十一世纪初期开始示范推广。保护性耕作机具是保护性耕作技术的关键,没有机具的支撑,保护性耕作难以为继。保护性耕作机具包括秸秆还田机、深松机、植保机械和 Conservation tillage technology is an agro-farming technique where no tillage, no tillage and no-tillage sowing of farmland are carried out under the condition that the surface is covered by stalks and residues of crops (hereinafter referred to as “straw”). This technology has been relatively mature in the United States, Australia, Canada and Brazil. Our country has been demonstrating and popularizing since the early 21st century. Conservation tillage machines are the key to conservation tillage and without the support of machines, conservation tillage is unsustainable. Conservation tillage equipment includes straw returning machines, subsoiling machines, plant protection machinery and