论文部分内容阅读
一、基本情况广东大部分地区,秋冬温暖,冬季无霜雪,不仅没有霜后花,而且能搞再生棉。本所1958年种了一块海岛棉丰产地,面积1.51亩(包括排水沟面积0.4亩)。4月22日播种,第一期花于9月30日前收完,实收籽棉209、89斤,平均每亩收籽棉139斤。在八月底进行整枝,主干不打顶,剪除全部旧木枝,旧果枝在第一节以后剪去,并在边行留两区不剪技以作对照。再生棉可收籽棉724斤,平均亩收籽棉479斤,为第一期产量的3.4倍。
First, the basic situation In most parts of Guangdong, warm in autumn and winter, no snow frost in winter, not only did not bloom after the cream, but also engage in renewable cotton. Our institute planted a piece of island cotton abundance in 1958, covering an area of 1.51 mu (including drainage area of 0.4 mu). April 22 planting, the first phase of flowers before September 30 to finish, the actual received seed cotton 209,89 pounds, an average of 139 pounds per mu received seed cotton. At the end of August, a pruning operation was carried out with the main trunk not topped off. All old branches were cut off and the old branches were cut off after the first section. Recycled cotton seed cotton can receive 724 kg, an average of 479 kg of seed received cotton, 3.4 times the first phase of production.