不同打顶时段对北疆次宜棉区棉花生长发育的影响研究

Effect of Different Topping Time on the Growth and Development of Cotton in North Xinjiang Secondary Suitable Planting Cotton Area

为促进北疆机采棉的收花效率,改善采摘质量,特对北疆次宜棉区中早熟棉花品种的生长发育重要环节即不同打顶时段进行了具体试验,选择一块棉花试验基地,将其设置四个区域,对其分别设置不同的打顶时段,通过调查棉花具体生长状况来探究不同打顶时段与棉花结铃、吐絮期等的影响。

In order to promote the efficiency and improve the picking quality of cotton machinery,we have carried out specific experiments,selected a cotton test base,divided it into four regions,set different topping time,and then according to the specif⁃ic growth status of cotton to explore the impact of topping time and cotton boll,ripening period and so on.