随着保护地生产的发展,塑料薄膜的应用逐渐增多.为了提高废旧薄膜的利用率,包头青年农场通过试验证明:利用菜窖存放的塑料薄膜比土埋、凉房存放效果要好.原因是:1、菜窖光线较弱,能避免因光线照射引起薄膜老化.2、温度适宜,避免因土埋或凉房存放温度过高或过低破坏薄膜的内部结构。3、水分适宜能有效控制薄膜的化学变化。 With the development of protected area production, the application of plastic film is gradually increasing.In order to improve the utilization rate of waste film, Baotou Youth Farm proves that the plastic film stored in vegetable cellar is better than soil burial and cool room storage because of: 1, weak light in the cellar, to avoid the aging of the film caused by light exposure.2, the temperature is suitable to avoid the internal structure of the film due to the high or low temperature storage in the soil or cool room. 3, water suitable to effectively control the chemical changes in the film.