留茬免耕保土肥田的耕种方式，适合山区坡耕地，既有保持水土、培肥地力的良好生态效应，又能获得增产增收、省工增效的经济效益。 １９９９年，集安市在双岔乡的坡耕地上进行了玉米不刨根茬免耕示范，即原垄根茬中间深刨埯，配以适量的氮、磷、钾肥与长效增效剂肥和保氮素一次 Stubble tillage and tillage fertile land farming methods suitable for mountainous slopes of cultivated land, both to maintain soil and water, fertility and fertility of the good ecological effects, but also to increase production and increase economic benefits of labor efficiency. In 1999, Ji’an City, on the sloping farmland of Shuangchao Township, conducted a demonstration of no-tillage and no-tillage corn cultivation, that is, the deep-rooted planing of the original ridge stubble with the appropriate amount of nitrogen, phosphorus and potassium and long- And nitrogen security once