论文部分内容阅读
我区种植棉花50,600亩,1982年以来,亩产稳定在150斤以上。我区在施好棉花盖顶肥的基础上,于8月10一15日普遍采用矮壮素封顶,均收到良好的增产效果。据丁北乡农科站两年考察封顶效果表明:用矮壮素封顶的棉株,上部5台果枝平均长度比对照短16.6厘米,果枝节距短0.3厘米,单株成铃数增3.45个,铃重增加0.18克,亩产增14.8%。增产原因(一)棉花铃期用矮壮素封顶后,叶色深绿,褪绿时间比对照推迟20天左右,制造有机养料的能力远远高于对照棉株。(二)在重施花铃肥以后,适时适量使用矮壮素封顶,起到了化学整枝打边心的作用,棉田内看不到赘芽丛生现象,有效地抑制了茎枝叶的生长,使养分集中攻结桃。
In our district, there are 50,600 mu of cotton planted. Since 1982, the per-mu yield has stabilized at over 150 kilos. My area is good cotton cover top fertilizer on the basis of commonly used in August 10 to 15 CCC cap, have received a good yield. According to Dingbei Peasants Agricultural Station two years inspection cap effect showed that: CCC top cotton plant, the upper part of the average length of 5 fruiting branches 16.6 cm shorter than the control, fruiting branches pitch 0.3 cm short, bolls per plant increased 3.45 , Boll weight increased 0.18 grams, increased by 14.8% per mu. Yield reasons (A) cotton boll stage with chlormequat capped, the dark green leaves, chlorotic time delayed 20 days compared with the control, the ability to produce organic nutrients is much higher than the control cotton plants. (B) in the re-implementation of boll fertilizer, timely use of appropriate amount of CCL capped, played the role of chemical pruning edge of the edge of the play, cotton buds can not see the phenomenon of clusters of buds, effectively inhibiting the growth of stems and leaves, the concentration of nutrients attack Peach.