塑料薄膜覆盖是一种简易的人工气候室,它能有效地改变棚内温湿度条件,是北方地区蔬菜增产的重要措施之一。同时还可以根据不同作物采用各种有色塑料薄膜覆盖,改变入射光的光谱来影响棚内光质条件和作物的生理过程,为提高产量和改善品质 Plastic film covering is a simple artificial climate chamber, which can effectively change the greenhouse temperature and humidity conditions, is one of the important measures to increase the yield of vegetables in the northern region. At the same time can also be based on different crops covered with a variety of colored plastic film, changing the spectrum of incident light to affect the shed light quality conditions and crop physiological processes, in order to improve yield and improve quality