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一、40%乙烯利、50%噻苯隆脱叶催熟1.确定最佳喷药期由于催熟、脱叶剂对铃期大于45天的棉铃有增加铃重、改进品质的作用,对铃期35天左右的棉铃重稍有降低,对铃期25天左右的棉铃可能逼熟,而铃期小于10天的幼铃则脱落。可见,铃期大于45天是理想的最佳喷药期。但是,由于生长期的限制,不可能所有棉铃的铃期都能大于45天。所以,为了充分而有效地发挥药剂的脱叶、催熟效应,喷药时主体铃
First, 40% ethephon, 50% thidiazuron leaf ripening 1. To determine the best spraying period As a result of ripening, leaf decay agent bolls greater than 45 days of bolls have increased boll weight, improve quality of the role of The boll weight of the 35-day boll weight decreased slightly, the boll boll of 25-day boll age might be ripe, and the bell-sized boll less than 10 days bolted off. Can be seen that the ring is greater than 45 days is the best time to spray the best. However, due to the limitation of growth period, it is impossible for all bolls to have a boll duration of more than 45 days. Therefore, in order to fully and effectively show the decoction of medicaments, ripening effect, the main boll when spraying