棚室内湿度偏高,不利于蔬菜作物的正常生长发育。高湿高温易使植株徒长,高湿低温又易诱发沤根,造成植株死亡。棚室内高湿还给蔬菜多种病害的发生及蔓延创造了条件。因此科学地控制棚室内空气湿度是十分重要的。下面介绍几种降低棚室内空气湿度的有效措施:1、用无滴膜覆盖。无滴膜可以克服膜内侧附着大量水滴的弊端,明显降低湿度,且透光性能好,透光率比一般农膜高10%～15%,有利于增温降湿。 Indoor high humidity shed is not conducive to the normal growth and development of vegetable crops. High temperature and humidity easily make the plant leggy, high humidity and easy to induce root, resulting in plant death. Indoor humidity shed vegetables to a variety of diseases and the spread has created the conditions. Therefore, it is very important to control the indoor air humidity scientifically. Here are some effective measures to reduce indoor humidity indoors: 1, with no drip film cover. Non-drip film can overcome the disadvantages of large amount of water droplets adhering to the inner side of the film, obviously reducing the humidity, and the translucent performance is good, the light transmittance is 10% -15% higher than that of the general agricultural film, which is favorable for increasing the temperature and reducing the humidity.