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棉花是无限生长作物,具有较强的顶端优势,适时打顶可以增加铃重,减少脱落和无效花蕾,使养分更多地运输到果枝上,以供应结实器官,过早或过迟打顶都不能构建合理的群体结构,消耗营养达不到增产的目的,棉花产量的高低,品质的优劣,除了与品种的选择,施肥技术、田管措施有直接关系外,打顶时间是否得当,直接关系棉花产量和植
Cotton is an infinitely grown crop with a strong top edge, timely priming can increase boll weight, reduce shedding and ineffective flower buds, and allow more nutrients to be transported to the fruiting branches for supply to harvested organs, premature or late topping Can not build a reasonable group structure, consumption of nutrients can not achieve the purpose of increasing production, the level of cotton yield, the quality of the pros and cons, in addition to the selection of varieties, fertilization techniques, field control measures are directly related to the toping time is appropriate, direct Relationship between cotton production and planting