地膜覆盖是一种新的栽培体系,它对提高农作物产量和改善品质都具有明显作用。美中不足的是地膜覆盖一次性投资大,长期使用如不及时清除残膜,土壤受污染严重。我省种植棉花采用的是根区覆盖栽培法,常因放苗不及时造成烫苗或放苗后有时发生冻害。由于苗期湿度过大,病害死苗多或蕾期增温快,营养生长过剩而造成狂长,花铃期不便于施肥、浇水和田间管理。为解决这些问题,我省棉花优质高产 Film mulching is a new cultivation system that has a significant effect on improving crop yields and improving quality. The fly in the ointment is the one-time investment in plastic film mulch, long-term use, such as the timely removal of residual film, soil pollution. Cotton cultivation in our province is the root zone covered cultivation method, often due to not timely cause Fangmiao or Fangmiao frost damage occurs sometimes. As the seedling humidity is too large, the disease dead seedlings or buds warming faster, resulting in excessively vegetative growth crazy, blooming period is not convenient for fertilization, watering and field management. In order to solve these problems, our province produces high quality cotton