地膜覆盖栽培技术1979年从日本引入我国。各地通过在油料、棉花、粮食和甜菜等各种作物上试验、示范和推广,都获得了明显的增产效益。覆膜甜菜内蒙古自治区从1980年开始试验、示范,结果表明,该项技术由于具有保墒、增温、保持土壤疏松、抑制杂草等作用,从而促进了甜菜早发、全苗、壮苗,提早利用光能,有利肥效的释放、利用,一般增产30％左右。对于糖分的影响,各地试验结果很不一致,有增有减。 Film mulching cultivation technology was introduced into Japan from Japan in 1979. All localities have gained significant yield-increasing benefits through testing, demonstrating and popularizing various crops such as oilseeds, cotton, grain and sugar beet. Inner Mongolia Autonomous Region has been experimenting and demonstrating since 1980, and the results show that this technology promotes the early development of beet, full seedling, strong seedling and early seedling due to its functions of preserving soil moisture, warming, keeping soil loose and inhibiting weeds. The use of light energy, beneficial fertilizer release, utilization, the general increase of about 30%. For the impact of sugar, the test results are very inconsistent around the increase and decrease.