塑料大棚棚膜上的水滴,对室内光照影响很大。据测试,棚膜上附着一层水滴,可使透光率下降20％～30％。一些菜农对此不是拍打棚面就是放风排湿,不但使棚膜碰坏机会增多,而且放风又降低了棚内温度,做法很不科学。采用下述方法去除水滴安全有效,不防一试。 Plastic shed film on the water droplets, a great influence on indoor lighting. According to the test, the film attached to a layer of water droplets, can reduce the transmittance of 20% to 30%. This is not some vegetable farmers beat the shed surface is the wind and wet, not only to increase the opportunity to touch the greenhouse film, but also reduce the greenhouse shed ventilation temperature, the practice is unscientific. Use the following method to remove water droplets safe and effective, do not prevent a try.