玉米秸杆粉碎翻压还田,可改土、培肥、高产,已是成功的经验。但也常因缺乏秸秆粉碎机、燃油和费工等原因,使推广受到限制。1988年9月用链轨拖拉机牵引4—5铧犁,作玉米秸秆直立整体翻压还田试验,取得了理想的效果。秸秆埋深20厘米,分布均匀,掩埋严密。技术要点:①拖拉机的行车速度不小于2档;②翻压中应严格按照犁的工作幅宽进行作业,不要漏耕和重耕;③翻压前应把拖拉机在地头的转弯处和第一次进地行道上的秸秆割 Corn straw smashed back into the soil, soil improvement, fertilization, high-yield, is the successful experience. However, promotion is often limited by the lack of straw mills, fuel oil and labor-intensive work. In 1988 September with tractor tractor traction 4-5 plow, corn stalks for the entire vertical pressure back to the field test, and achieved the desired results. Buried depth of 20 cm straw, well-distributed. Technical points: ① tractor driving speed is not less than 2 files; ② turn pressure should be strictly in accordance with the working width of the plow, not tilling and heavy tillage; ③ before turning the tractor at the corner of the bend and the first Time into the sidewalk cut straw