近几年,为了提高作物产量,农民种田普遍使用地膜。但也有些耕地不适宜盖地膜,概括起来有以下五种田。 一是纯旱田 除雨季外,长期于旱的耕地盖地膜不仅起不到应有的作用,反而加重旱情。 二是沙土田 沙土田盖地膜,中午地面温度升高,尤其 In recent years, in order to improve crop yields, farmers commonly use plastic film farming. But some cultivated land is not suitable for cover film, summed up the following five fields. First, pure dry field except the rainy season, long-term dry land cover film not only failed to play its due role, but aggravate the drought. Second, the sandy soil cover the ground film, noon ground temperature, especially