运城地区的棉花地膜覆盖栽培,经过1979—1981三年的试验、示范、推广,充分显示出增产幅度大、经济效益高的优势,为棉花稳产高产开辟了一条新的途径,可以因地制宜大力推广。1979年在万荣县旱地布点5个,覆盖面积2亩,亩产皮棉100.9—155.9斤,比未覆盖的增产31—82%;1980年在万荣、临猗、永济、闻喜等8县布点48个,共82亩,实产为:纯旱地亩产皮棉123.1—177.2斤,增产56.6—89.5%。水地亩产144—213斤, Cotton mulching cultivation in Yuncheng area, after three years of experiment, demonstration and popularization in 1979-1981, fully demonstrated the advantages of large yield increase and high economic efficiency, which opened up a new way for cotton to maintain a stable and high yield and could be vigorously popularized according to local conditions. In 1979, there were 5 dry land plots in Wanrong County covering an area of ​​2 mu with a yield of 100.9-155.9 kg of lint per mu, an increase of 31-82% over that uncovered. In 1980, 8 counties such as Wanrong, Linqu, Yongji and Wenxi Dispensing 48, a total of 82 acres, real production: pure dry land per mu lint 123.1-177.2 kg, an increase of 56.6-89.5%. Water yield 144-213 pounds per mu,