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棉花整枝打顶工作,现在正在重新被人认识。究竟在我区棉花是整枝打顶好呢?还是不整枝打顶好?这是大家很关心的课题。基于此,我站1982年在地膜棉田上对长绒棉、陆地棉进行了小区试验,并对站内外地膜棉、常规棉进行了田间调查。我们考察的主要问题是:棉花不打顶是否引起徒长?对棉花生育后期的成铃、吐絮及产量是否会带来严重恶果?不打顶在防止地膜棉后期早衰上有何意义?现将结果初步报道如下,以期引起进一步共同讨论。
Cotton pruning topping work is now being re-recognized. After all, cotton in our area is good for pruning or is it not good for pruning? This is a topic that everyone is very concerned about. Based on this, I station in 1982 in the field of cotton membrane on the long-staple cotton, Upland cotton-plot test, and outside the station membrane cotton, conventional cotton conducted a field survey. The main questions we examined are: Does not the cotton top cause leggy growth? Will it cause serious consequences on the bolls, bolls and yield of the late cotton growth stage? Does it not mean to prevent the premature decline of the cotton membrane? The preliminary reports are as follows, aiming to arouse further discussion.