终霜冻害历来被认为是棉花播期的限制因子,通常的提法是“霜前播种,霜后出苗”。在当前,新疆大面积采用地膜植棉的情况下,依地温播期可以提前到4月10日前后,不少的同志担心霜冻可能会成为地膜棉花的重要灾害,为了弄清地膜棉花苗期霜冻危害情况,1982年进行盆栽试验及田间实地调查,现将试验结果及调查情况报道如下: The frost damage has always been considered as a limiting factor for cotton sowing date, the usual reference is “pre-frost sowing, frost emergence.” At present, under the circumstance that cotton planting is used on a large area in Xinjiang, the sowing date according to the soil temperature can be advanced to around April 10, and many comrades are worried that the frost may become an important disaster for the mulching cotton. In order to find out the mulching cotton seedling frost Endanger the situation, carried on the pot experiment and the field field investigation in 1982, now the test result and the survey situation reports as follows: