塑料薄膜地面覆盖是一种投资少、收益大的重要增产措施。但地膜覆盖后锄草困难。如果薄膜本身就有杀草能力,不仅可以起到杀草作用,而且可简化作业工序、节省劳力、利于机械化作业。为此,1979年,我国农业部、轻工业部就下达了除草膜的研制任务。1980年以后,大连塑料研究所、太原塑料研究所、呼和浩特市二轻科研所等相继研制成功并投入批量生产。太原塑料研究所研制的除草膜在黄瓜、豆角、茄子、辣椒、大白菜等蔬菜上及棉花上的应用,除了有提高地温、保水作用外,与普通透明地面覆盖膜相比,有明显的杀草效果,杀草率达85％以上,也有显著的增产效果,普遍增产约20％。生产除草膜的方法主要采用挤出吹塑法。此方法 Plastic film floor covering is a less investment, big gains in the production of an important measure to increase production. However, weeding after mulching difficulties. If the film itself has the ability to kill grass, not only can play a role in killing grass, and can simplify the operation processes, saving labor, which is conducive to mechanized operations. To this end, in 1979, China’s Ministry of Agriculture, Ministry of Light Industry issued a research and development of herbicidal membrane task. After 1980, Dalian Institute of Plastics, Taiyuan Institute of Plastics, Hohhot Second Light Institute and other research have been successfully developed and put into mass production. Taiyuan Institute of Plastics developed herbicidal film in cucumber, beans, eggplant, peppers, cabbage and other vegetables and cotton on the application, in addition to improve the ground temperature, water retention, compared with ordinary transparent ground cover film, there is a clear kill Grass effect, killing more than 85% of the grass, but also a significant increase in yield, the general increase of about 20%. The main method of producing weeding film extrusion blow molding. This method