在北疆特早熟棉区的棉花生产中,往往因气候,特别是受秋季低温的影响,棉铃贪青晚熟不能正常吐絮而遭受经济损失。为了探寻棉花的有效催熟途径,我们用克芜踪对贪青晚熟的棉田作化学催熟试验。田间试验结果表明,棉花喷施适量的克芜踪,可加快棉铃吐絮速率,提高霜前花产量,对棉纤维品质无不良影响。其催熟效果优于乙烯利。试验还初步明确了田间使用克芜踪的经济有效用药量及使用技术。 Cotton production in the especially early cotton area of ​​northern Xinjiang often suffer economic losses due to the climate, especially due to the influence of autumnal low temperature, and the boll opening can not be normally flocculent due to late ripening. In order to explore the effective cotton ripening way, we use the Wuhu trace of ripe cotton late ripening for chemical ripening test. The results of field trials showed that spraying cotton with the right amount of Kewu tobacco could speed up the cotton boll opening and flowering rate and increase the flower yield before frost, which had no adverse effect on the quality of cotton fiber. Its ripening effect is better than ethephon. The trial also initially identified the field use of grams of Wu trace of the cost-effective and use of technology.