1979年我们在学习国内外有关地膜覆盖栽培经验的基础上,进行了农膜地面覆盖栽培试验,探索其生产效果及经济收益,为以后进一步试验和示范推广积累经验。试验材料和方法试验分别在呼和浩特市郊区两个蔬菜公社四个大队进行。试验的作物种类和面积如表一。 In 1979, we studied the cultivation of plastic film mulching at home and abroad on the basis of the plastic film ground covering cultivation experiments to explore its production and economic benefits, for further experimental and demonstration to promote the accumulation of experience. Test materials and methods were tested in Hohhot suburb of two vegetable communes four brigades. The types and areas of crops tested are shown in Table 1.