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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。在我国棉花提高质量增加出口的新形势下,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年又继续该项工作,取得积极效果。材料与方法本年我们仍采用陕1155品种。在每亩4566株密度相同条件下,于吐絮期选地膜棉各360株,对两类棉株相同节位各采摘10个正常吐絮棉铃,晒干称重,轧取皮棉,计算铃重和衣分
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. Under the new situation of China’s cotton export increasing in quality and quantity, in order to find out the impact of plastic film mulching on the quality of cotton fiber, on the basis of the two years I conducted, this work was continued in 1985 with positive results. Materials and methods This year we still use Shaanxi 1155 varieties. At the same density of 4566 plants per acre, 360 cotton membrane cottons were selected in the boll opening period. Ten normal cotton boll bolls were picked at the same node of the two cotton varieties, dried and weighed, Minute