我是个公社干部,家里只有7分自留地,为了帮助群众实行科学种田,提高经济效益,我把这7分地当作试验田种。1982年试验地膜覆盖棉花,取得经验,1983年就在全公社推广了310亩,平均亩产166斤,增产十分显著。去年又搞了一膜两用(种两茬菜)、一膜三用(种三茬菜)、地膜覆盖土豆等试验,效果也很好。现将地膜覆盖土豆试验介绍如下。试验面积0.12亩,施足底肥,4月15日下种,共种360窝,每窝2株,小暑后整枝3次,大暑后分两次打顶。8月18日第一次收获,挖出大薯块,留下小薯块,保护好根部,割去地上部分,追施猪粪。8月30日二茬土豆长出新芽,10月2日第二次收获.第一次收了734斤,第二次收了259斤。二茬土豆40%在地面结薯,太阳晒成绿 I am a commune cadre, only 7 points at home to retain their own land, in order to help the masses to carry out scientific farming, improve economic efficiency, I put these 7 points as a pilot field. In 1982, we experimented with mulching of cotton and gained experience. In 1983, it spread 310 mu in the whole commune with an average yield of 166 jin and the yield was very significant. Last year, they engaged in a film dual-use (kind of two crop vegetables), a film three-use (three kinds of crop), mulching and other plastic film test, the effect is also very good. Now the film covered potato test described below. Test area of ​​0.12 acres, Shi enough base fertilizer, April 15 under the planted, a total of 360 litters, 2 litters per litter, after three hours of small heat summer, twice after the summer heat top. August 18 the first harvest, dug big potato, leaving small tubers, to protect the roots, cut off the ground part, topdressing pig manure. On August 30, the second crop of potatoes grew new shoots and the second harvest on October 2. The first harvest of 734 catties and the second harvest of 259 catties. Two stubble potatoes 40% potato in the ground, the sun becomes green