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棉花苗床内搬钵及化控均有明显的控上促下效果,与对照相比,苗、蕾期棉株叶面积及地上部干物重较小,根系干重比例明显提高。~(32)P示踪结果,搬钵及化控处理在移栽后36天中,地上部单位干重脉冲数均高于对照,其中搬钵处理达1％显著水平,表明这两种处理棉株根系吸收强度增大。但生殖器官脉冲数占全株的比例并无增加趋向,皮棉产量也无显著差异。因此,搬钵及化控虽能有效地缩短缓苗期,但生产上必须采取综合措施才能达到高产的目的。化控不但有与搬钵相近的促控效果,而且可以省工节本,因此,生产上采用化控代替搬钵以缩短麦后移栽棉的缓苗期是可行的。
Compared with the control, the cotton leaf area and shoot dry weight of cotton seedling at budding and budding stage were smaller, and the proportion of root dry weight was significantly increased. ~ (32) P tracer results, moving mortar and chemical control treatment in the 36 days after transplanting, the dry weight of the ground above the unit number were higher than the control, wherein the removal of bowl up to 1% significant level, indicating that the two treatments Cotton plant root absorption intensity increases. However, the proportion of reproductive organs in the whole plant did not increase the pulse rate, lint yield was no significant difference. Therefore, moving mortar and chemical control can effectively reduce the hurried seedling stage, but the production must take comprehensive measures to achieve the purpose of high yield. Chemical control not only has the same control effect as moving mortar, but also can save time and labor costs. Therefore, it is feasible to adopt chemical control instead of moving mortar to shorten the time for rejuvenating cotton after transplanting wheat.