自从地膜棉的新技术推广以来,各地在覆盖方式上进行了许多试验和改进,取得了比较一致的看法,但也存在着分歧。本文试图通过对不同覆盖方式的发展,气象效益、光合率和经济效率的利弊,作些介绍分析。为生产单位种植地膜棉时采用适宜的覆盖方式,提供些科学依据。 Since the popularization of new technology of mulching cotton, many experiments and improvements have been made on the ways of mulching around the region, and a more consistent view has been reached. However, there are also differences. This article tries to introduce and analyze the pros and cons of different coverage ways, meteorological benefits, photosynthetic rates and economic efficiency. For the production of plastic film mulberry planting areas with appropriate coverage, to provide some scientific basis.