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农用地膜是指直接覆盖在栽培畦或近地面的薄型农膜。一般厚度为0.008~0.015毫米,基础树脂为聚乙烯。近年来,各种有颜色的农膜纷纷上市,由于不同颜色的农膜对光谱的吸收和反射规律不同,对农作物生长及杂草、病虫害、地温的影响也不一样。因此在使用中要针对不同农作物的特点和种植季节,选择不同颜色的农膜。一、普通地膜厚度0.015毫米,幅宽80~300厘米不等,可根据畦宽选择不同的规
Agricultural film refers to the direct cover in the cultivation of 薄 or near the ground thin plastic sheeting. The general thickness of 0.008 ~ 0.015 mm, the basic resin is polyethylene. In recent years, a variety of colored plastic sheeting have been listed, due to different colors of plastic film on the spectrum of absorption and reflection of different laws on crop growth and weeds, pests and diseases, ground temperature is not the same. Therefore, the use of different crops for the characteristics and planting season, choose different colors of plastic sheeting. First, the ordinary film thickness of 0.015 mm, width of 80 to 300 cm, according to 畦 wide choice of different rules