论文部分内容阅读
当前农膜市场需求旺盛,有五类新型农用薄膜深受农民欢迎。①黑色膜:能防止土壤中的水分蒸发、抑制杂草生长。②银灰膜:光反射率达40%,能反射紫外线,有驱避蚜虫作用。③银色反光膜:其反光率达80%～100%,用于果园地面覆盖,有增进果实品质、促使早熟和增产的作用。④除草膜:在薄膜表面粘有除草剂,可杀死杂草幼芽。⑤切口膜:在薄膜上具有规律性的暗条状切条纹,在整地撒种后铺上此膜,幼苗可以从暗条中钻出,从而可免去破膜操作,而作物根
Current demand for plastic sheeting market, there are five types of new agricultural film welcomed by farmers. ① black film: to prevent soil water evaporation, inhibition of weed growth. ② silver film: light reflectivity of 40%, can reflect UV, there are repellent aphids. ③ silver reflective film: the reflective rate of 80% to 100%, for orchard ground cover, improve fruit quality, prompting premature and increased production. ④ weeding film: sticky herbicide in the film surface, weeds can kill shoots. ⑤ incision film: the film has a regular pattern of dark strip cut in soil preparation after spreading this film, the seedlings can be drilled from the dark strip, which can eliminate the rupture of membranes, and crop roots