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蔬菜大棚只有通过覆盖棚膜后,才会发挥出温室效应。因此说,选购适宜于蔬菜大棚的薄膜,并采用正确的棚膜覆盖方法,对延长棚膜寿命非常重要。可是,生产中发现不少农户棚室的棚膜覆盖存在方法误区。1.棚膜的选购之误蔬菜大棚薄膜共分两幅,一幅为屋面棚膜,另一幅为放风棚膜。前者建议选购透光率高、无滴消雾性强及
Greenhouses only by covering the greenhouse, will play a greenhouse effect. Therefore, the purchase of suitable greenhouse film, and the use of the correct film covering method, to extend the life of the film is very important. However, there are some misunderstandings about the greenhouse film coverage found in many peasant households in production. 1. The purchase of greenhouse film mistaken Green vegetable film is divided into two, one for the roof shed film, the other for the ventilation shed film. The former proposal to buy high transmittance, non-dripping anti-fog and strong