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冬、春塑料大棚栽培,由于棚室内外的温差较大,棚膜上常附着一层水滴,严重影响棚膜的透光率,降低棚内温度。据测定,拥膜上附着水滴后,一般可使棚膜的透光率下降20~30%。怎样才能除去棚膜上的水滴呢?现介绍一种简便易行的方法。具体做法是:把大豆磨成细粉(越细越好)?
Winter and spring plastic greenhouse cultivation, as a result of the large temperature difference between the greenhouse inside and outside, often attached to the greenhouse film layer of water droplets, a serious impact on the transparency of the greenhouse film, reducing greenhouse temperature. According to the determination, hug attached to the water droplets, the general film can be shed light transmittance decreased by 20 to 30%. How to remove the water droplets on the film? Now introduce a simple and easy way. The specific approach is: grinding soybeans into fine powder (the finer the better)?