为后代留下一片净土──关于地膜回收机械化的几点思考尚达声（一）被誉为农业“白色革命”的地膜覆盖栽培技术，自八十年代引进新疆以来，以其显著的增产效益，吸引了广大农民。特别是地膜覆盖机问世之后，地膜覆盖植棉面积直线上升，并迅速向甜菜、玉米、蔬菜等作物的地... Leaving a piece of pure land for future generations ─ ─ on the mechanization of plastic film recycling Shanda sound (A) known as the agricultural “white revolution” mulching cultivation techniques, since the introduction of Xinjiang in the 1980s, with its significant yield-generating benefits , Has attracted the majority of farmers. Especially after the film mulching machine came out, the area covered by plastic mulching increased linearly and quickly moved to the fields of beet, corn, vegetables and other crops.