我地是棉花主产区，为了使棉花高产，我们一般采用地膜营养钵育苗，但在揭膜后，棉苗高脚，且极易染病，甚至出现脱水严重而死苗的现象，技术不易掌握；在生长发育阶段，采用重施化肥往往造成棉苗疯长，再用助壮素、矮壮素等压苗，药少见效不大，药多棉苗停止生长，造成药害等 I am the main producing areas of cotton, in order to make cotton high yield, we generally use plastic film nutrition bowl nursery, but after uncovering, cotton seedling tall, and highly susceptible to disease, dehydration and even severe death phenomenon, technology is not easy to master ; In the growth and development stage, the use of heavy chemical fertilizers often result in soaring cotton seedlings, and then help mellitus, chlorpheniramine and other pressure seedlings, medicine rarely effective, multi-drug cotton seedling growth, resulting in injury and so on