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棉花单产的提高,取决于单位面积上的总株数和单株结铃数。只有两者高度的统一起来,才能达到早熟高产的目的。1965年我所在总结分析历年植棉经验,以及学习启东大面积密植高产经验的基础上,全所2,400亩棉花(内鄂光棉135亩,余为岱字棉15号),采取了以密植为中心的栽培技术措施,每亩密度由1964年的2,400株左右,增加到4,000多株,少数田块达5,000—6,000株,平均亩产122.3斤(皮棉,下同),其中有64宙,亩产在140斤以上,平均亩
Cotton yield increase, depends on the total number of plants per unit area and the number of bolls per plant. Only a high degree of unity between the two can achieve the purpose of early maturity and high yield. In 1965, based on a summary of the experiences of cotton-planting in the past years as well as the experience of large-scale intensive planting and high-yielding cultivation in Qidong, 2,400 mu of cotton (135 mu of Eangguang cotton and 11 Daigulianmian cotton) The cultivation density per acre increased from about 2,400 in 1964 to more than 4,000, with a small number of fields ranging from 5,000 to 6,000. The average yield per mu is 122.3 kg (lint, the same below), of which 64 are per mu 140 pounds or more, the average mu