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正确选用有色农膜,对农作物能起到增产、增收、防病和改善品质的作用,若选用颜色不当,往往适得其反。现将7种有色农膜的使用方法介绍如下。蓝色农膜又叫蓝色增光膜,主要特点是保温性能好,升温快,在弱光条件下透光率高于普通农膜,而在强光条件下又低于普通农膜。在蓝色光照下,农作物光合作用加快,可增加作物氮碳含量和蛋白质含量,改
Correct use of colored plastic sheeting, the crop can play a yield, income, disease prevention and improve the quality of the role, if the use of inappropriate color, often counterproductive. The use of seven kinds of colored plastic film are as follows. Blue plastic film, also known as blue light film, the main feature is good insulation properties, warming fast, light transmittance in low light conditions than ordinary plastic sheeting, but also in the light conditions lower than normal plastic sheeting. In the blue light, crop photosynthesis to speed up, can increase crop nitrogen and carbon content and protein content, change