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四川棉区受丘陵粮（油）棉两熟制雨养栽培条件的限制，棉苗移栽后入夏前由于自然有效热量不足，两苗期阶段日数偏长，不利壮苗早发、早熟优质高产。总结应用棉田地膜覆盖增温保水补偿原理和生物学效应演变规律，从开发利用春季热量、实施安全快速培育适龄棉苗出发，通过苗床延长盖膜日数，增地温促发根发苗，以壮促早、缩短苗期、调节和提高棉株最佳开花结铃数和比率。据试验示范验证，全盖育苗的壮苗早发效应突出，移栽的后续效应明显，对于实施节本促早调节栽培，具有较大的实用意义。
Sichuan Province by the hills of grain (oil) cotton crop cultivation conditions of the two rains, cotton seedlings transplanted into the summer due to the lack of effective natural heat, the two seedling stage the number of days longer, unfavorable strong early seedlings, early maturity quality high yield. Summarizes the application cotton soil mulching warming and water conservation compensation principle and the evolution of biological effects, from the development and utilization of spring heat, the implementation of safe and rapid development of appropriate age cotton seedlings, seedbed extended cover days, increase temperature to promote hair root seedlings to strong Early, shorten the seedling stage, regulate and improve the cotton plant flowering number and the best rate. According to the demonstration test, full-seedling seedling seedling early emergence effect prominent, the follow-up effect of transplanting obvious, for the implementation of cost-effective early adjustment and cultivation, has great practical significance.