日本近年来正迅速发展一种浮面覆盖技术。据估计，1987年全日本约有1800公顷作物使用了此项新技术。浮面覆盖技术简单易行，它不需要支架，只要把一些具有通气性、透光性的覆盖新材料直接覆盖在作物上，就可以达到防寒、防霜、防风、防暑、防虫、防乌等目的。这是继地膜覆盖以 In recent years, Japan is rapidly developing a floating surface coverage technology. It is estimated that about 1,800 hectares of crops were used throughout 1987 in Japan. Floating surface covering technology is simple and easy, it does not require a bracket, as long as some of the breathable, translucent cover new material directly on the crop, you can achieve the purpose of cold, frost, wind, sunstroke, pest control, . This is the second film covered with