编辑同志: 我们这里有不少人反映,用旧薄膜育苗或育秧效果很好。据我们在苏庄大队对棉花营养钵苗床调查,确实是这样。透光性强。使用过的薄膜内层每天早上没有水珠,太阳一出,光线直接照射到苗床内;而新薄膜内层,每天早上布满了水珠,有时床内形成雾气,阻挡阳光照射,需要人工拍掉水珠,日照时间要比旧薄膜覆盖的苗床短1—2小时。 Editorial comrades: We have a lot of people here, with the old film nursery or nursery effect is very good. According to our investigation of cotton nursery bed seedbed in Su Zhuang Brigade, this is indeed the case. Strong translucency. Used inner layer of the film every morning without water droplets, the sun one, the light shines directly into the seedbed; the new film inner layer, every morning covered with water droplets, and sometimes the formation of the bed fog, blocking the sun, the need for artificial Drop the beads, sunshine time than the old film covered seedbed short 1-2 hours.