营口市玉米机械化保护性耕作技术应用效果

摘要

根据营口市实施保护性耕作的示范及实践，以传统耕作为对照，选取碎秆覆盖浅旋、碎秆覆盖少耕、整秆覆盖少耕3种保护性耕作模式进行对比试验，探讨保护性耕作对土壤温度、含水量、风蚀、肥力的影响。试验结果表明：保护性耕作技术能防治水土流失、培肥地力、提高降水利用率；整秆覆盖少耕模式适合在辽宁省大部分地区推广应用。%Comparative trial was conducted on the effect of conservation tillage in Yingkou with traditional tillage as the control, selecting 3 kinds of conservation tillage patterns, namely, the crushed stalk mulching shallow rotary tillage, crushed stalk mulching minimal tillage, and whole stalk mulching minimal tillage. The effects of conservation tillage on soil temperature, moisture, wind erosion, and soil fertility were explored. The test results showed that the conservation tillage technology can prevent soil erosion, increase soil fertility, improve the utilization rate of rainfall;and the whole stalk mulching minimal tillage mode is suitable for popularization and application in most areas of Liaoning province.