霜降前后,天气逐渐变冷,为防早霜危害,日光温室、大棚等设施生产的草莓需要及时扣膜保温。在正确选择棚膜基础上,为合理使用薄膜、延长棚膜寿命、降低生产成本,在扣膜前后需要注意以下相关环节。正常情况下,棚膜的长度为大棚全长再加上1米。棚膜在宽度方向上把棚膜分为几幅,有单幅、双幅或多幅几种设置方法。单幅:为了避免冷风直接吹到苗木和地面,在单幅棚膜与地面接触部分内部设置一道 Frost down before and after the weather gets colder, in order to prevent premature frost damage, sunlight greenhouse, greenhouses and other facilities need to promptly coated strawberries insulation. In the correct choice of greenhouse film, based on the rational use of the film to extend the shelf life of the film and reduce production costs, the film before and after the need to pay attention to the following aspects. Under normal circumstances, the length of the greenhouse film for the full length of the shed plus 1 meter. Shed film in the width direction of the studio film is divided into several pieces, there are single, double or multiple pieces of several settings. Single: In order to avoid direct cold air blow seedlings and the ground, in a single piece of film and the ground contact with the internal part of the set