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1975～1976年示范试验的结果1.“乙烯利”促进棉花早熟的效应。经过示范试验,可以看出在不同地区、品种条件下,棉花应用“乙烯利”催熟均有明显效应。如海宁县黄湾公社6个大队(10个生产队)对22亩“协作2号”等品种进行示范试验,在适宜的浓度范围内,于9月下旬施用(施用后一周内日平均气温为20.5—22℃)拔杆时开铃率比对照高21.3—29.5%;即使在10月上、中旬使用(10月7—17日),施用后一周内日平均
Results from the demonstration experiment from 1975 to 1976 1. “Ethephon” promotes cotton precocity. After demonstration tests, we can see that in different regions and varieties, cotton application of “ethephon” ripening have a significant effect. For example, six batches (10 production teams) of Huangwan Commune of Haining County carried out demonstration tests on 22 mu of “No. 2 of Cooperatives” and so on, and applied them in the end of September in a suitable concentration range (the average daily temperature in one week after application is 20.5-22 ℃), the boll opening rate was 21.3-29.5% higher than that of the control when pulled out; even in the middle of October and October (October 7-17), the average daily average