地膜的种类很多,有透明膜、除草膜、营养膜、防蚜膜、切口膜、黑色膜、反光膜等。由于地膜的厚度、颜色及性能不同,故在选择使用时,应根据作物的种类,栽培目的,效益的高低,科学地选用。一、春季用地膜覆盖作物,能提高地温,促进作物生长发育,选用透光率高的透明膜为好。二、用于栽培花生的地膜,应采 Many types of plastic film, a transparent film, weeding film, nutrition film, anti-aphid film, incision film, black film, reflective film. As the film thickness, color and performance are different, so the choice of use, should be based on the type of crop, cultivation purposes, the level of effectiveness, the scientific selection. First, the spring mulching crops, can increase the ground temperature and promote crop growth and development, the selection of transparent film with high transmittance as well. Second, for the cultivation of peanut film, should be taken