以前果实套袋使用的果袋,基本都是用废旧报纸人工糊制的。袋子规格标准很难统一,透光、透气性较差,阻碍果实光合作用。遇雨淋湿易烂。气温高时因透气性较差,袋内形成高温灼伤果实。最致命的是报纸袋的铅污染果实。因而报纸袋利少弊多。一种塑膜套袋的替代品—免 Fruit bags used to bag fruit before are basically made from waste newspapers. Bag specifications difficult to uniform standards, light transmission, poor ventilation, hinder fruit photosynthesis. In case of rain and easy to rot. High temperature due to poor ventilation, the formation of bags of high temperature burns fruit. The deadliest is the newspaper bag of lead contaminated fruit. Newspapers and bags therefore less harmful. A plastic film bag replacement - free