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采用浮染法将荧光助剂、红外辐射剂、着色剂分散进低密度聚乙烯 (LDPE)树脂中 ,通过挤出吹塑制成厚 0 .1 2 mm,宽 1 2 m的无滴、长寿棚膜。光生态膜将 550 nm的绿光变换为红光提高了红光成分 ,有效的调整了辐射进入棚内的太阳光谱 ,补充了红光的辐射强度 ,改善了农作物的光生态环境 ,促进了作物的光合作用。用这种光生态膜苫盖温室进行水稻育秧 ,在哈尔滨市 1 2个县进行大面积试验示范 ,提高了作物的产量 ,使水稻产量提高了 8.6%。
The fluorescent assistant, the infrared radiation agent and the colorant are dispersed in the low-density polyethylene (LDPE) resin by the float-dyeing method, and are prepared by extrusion blow molding, having a thickness of 0.112 mm, a width of 12 m, Green film. Eco-optical film The 550 nm green light is converted to red light to improve the red light component, effectively adjust the radiation into the shed of the solar spectrum, complementing the red light radiation intensity, improve the photoperiod of crops, and promote crops Photosynthesis. Using this eco-film to cover the greenhouse for rice seedling cultivation, a large-scale pilot demonstration was carried out in 12 counties in Harbin to increase the crop yield and increase the rice yield by 8.6%.