由于棚内外的温差较大，棚膜上常附着一层水滴，严重影响棚膜的透光率，使棚内温度降低。如果每平方米棚膜用７．５～１０克细大豆粉（越细越好），对水１５０克，浸泡２小时，用细纱布滤去渣，然后装入喷雾器内，对着棚膜均匀喷雾，可使棚膜上的水滴迅速滑落下来，并可保持棚 Due to the large temperature difference between inside and outside the shed, the film often attached to a layer of water droplets, a serious impact on the transparency of the shed film, so that shed temperatures decreased. If the film per square meter with 7.5 to 10 grams of fine soy flour (the finer the better), 150 grams of water, soak for 2 hours, with a gauze filter to the residue, and then into the sprayer, facing the greenhouse uniform Spray, the film can drop the water droplets quickly fall, and can keep the shed