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北京丰润达开发公司生产的液态地膜 ,具有一般固体地膜的保墒增温作用 ,而且当气温达到 2 5℃时 ,可自行分解 ,不污染环境。为解决日益严重的白色污染问题 ,1999年春汤原农场引进了此液态地膜 ,并在大豆上进行了小区试验。1 试验材料与方法1.1 试验材料液态地膜由北京丰润达?
Beijing Fengrun of the development of liquid film production company, with the general solid film moisturizing warming effect, and when the temperature reaches 25 ℃, can be self-decomposition, does not pollute the environment. In order to solve the increasingly serious problem of white pollution, this liquid film was introduced into the original farm in Tangchun in 1999 and plots were conducted on soybean. 1 Test Materials and Methods 1.1 Test Materials Liquid film from Beijing Fengrun up?