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烤烟喷施乙烯利催熟烤烟喷施乙烯利能促进叶绿素分解，加速烟叶的落黄成熟，同时烟叶质量也略有提高。在烟叶贪青不易落黄或气候寒冷烟叶成熟困难的情况下，喷施乙烯利可以均匀地促进烟叶提早成熟１５－２０天。１．施用时间过早施用会抑制上部叶片的生长而导致减产。一般...
The spraying of ethephon to flue-cured tobacco with flue-cured tobacco sprayed with ethephon can promote the decomposition of chlorophyll, accelerate the fall of yellow tobacco and improve the quality of tobacco leaf at the same time. Spraying ethephon could promote the premature ripening of tobacco leaf for 15-20 days uniformly under the condition that the tobacco leaf is not easy to drop yellow or the climate is cold and mature. 1. Premature application of the application time will inhibit the growth of the upper leaves leading to reduced production. general...