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1.黑色地膜 具有灭草效果好、稳定,且有增产作用。使用于甘蓝、番茄、白菜、马铃薯等蔬菜的地面覆盖,可见光透射率在10％以下,可使膜下杂草生长不良或死亡。 2.绿色地膜 主要是使植物进行光合作用的可见光透过量减少,而绿色光增加,从而降低膜下植物的光合作用,使杂草饥饿衰亡。但绿色膜的抑草效果不稳定。茄子、青椒、甘蓝、番茄、马铃薯、白菜等蔬菜覆盖该膜后有显著早期增产
1. Black film has a good effect of weed control, stability, and increase production. Use cabbage, tomatoes, cabbage, potatoes and other vegetables covering the ground, the visible light transmittance of 10% or less, can make poor growth or death of weeds under the film. 2. Green film is mainly to reduce photosynthesis of plants visible light transmission, and green light increases, thereby reducing the photosynthesis of plants under the film, the weed starvation decline. However, the suppression effect of green film is not stable. Eggplant, green pepper, cabbage, tomato, potato, cabbage and other vegetables covered with the film after the early significant increase