合理密植是夺取棉花高产的一项有效措施。但目前的一般单行形式,再缩小株距,增加株数,有困难;缩垄增行又受农机具的限制。几年来,群众在生产实践中创造的大垄双行密植形式,克服了上述矛盾。海城县毛祁公社山后大队1974年试种89亩大垄双行棉花(垄距2.2尺,小行距6寸,株距4寸),每亩理论株数增加 Reasonable and close planting is an effective measure to seize the high yield of cotton. However, at present, the general form of individual trades is further constrained by narrowing the distance between plants and increasing the number of trees. Over the past few years, the masses have created a wide-ridged double-row dense planting pattern in their production practices to overcome the above contradictions. Haicheng County Qi Mao commune team after the trial in 1974, 89 acres of large ridge double-row cotton (ridge distance of 2.2 feet, row spacing of 6 inches, spacing 4 inches), the theoretical number of trees per acre increased