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麦后直播、秋雨多和肥料足的套种棉花,常常出现开絮晚、烂桃多、铃轻、衣分低等现象。各地报导,施用乙烯利对前期40天以上日龄的棉桃,催熟效果好,但对中后期40天以下日龄的棉桃,喷施后,常出现铃重减轻、衣分降低的现象。我们是在各地研究乙烯利催熟的基础上,由1976年开始,着重筛选和乙烯利混用的新药,要求对中后期
Live broadcast after the wheat, autumn and fertile enough cotton interplanting cotton, often appear open lotus late, rotten peach, bell lighter, lower clothing points and so on. It has been reported in various places that the use of ethephon is effective in ripening cotton bolls at the early days of more than 40 days. However, bolls weight loss and lint percentage often appear after bolting on cotton bolls aged at or below 40 days. We are in various parts of the study based on ethephon ripening, starting from 1976, focusing on screening and ethephon mixed with new drugs, requiring the late