地膜覆盖栽培是提高棉花产量的突破性技术措施。但在前几年地膜覆盖的研究中,多偏重于覆盖增产效应,对品质研究较少。在提高质量和增加出口的新形势要求下,为了摸清地膜覆盖对棉花纤维品质等影响,我所在两年研究的基础上,1985年又继续了这项工作,现报道如下。 Film mulching cultivation is a breakthrough technical measure to increase cotton yield. However, a few years ago in the study of plastic film mulching, more emphasis on covering the yield-increasing effect on the quality of less research. In order to find out the impact of plastic film mulching on the quality of cotton fiber under the new situation of improving quality and increasing exports, on the basis of the two years I conducted, this work was continued in 1985 and is reported as follows.