花铃期是棉株营养生长和生殖生长同时并进的时期。此期棉株发育最旺盛,边搭丰产架子,边大量现蕾开花结铃,需肥、需水最多,积累干物质也最多,是形成产量的关键时期。因此,棉花要实现丰产优质,必须把好花铃关。其管理技术有以下几点。 1.施好花铃肥。为保证花铃期大量开花结铃对养分的需要,争取多座伏桃和早秋桃,必须重施花铃肥,并补施盖顶肥。花铃 The boll stage is a period during which vegetative and reproductive growth of cotton plants progress simultaneously. This period of cotton plant development is the most flourishing, while taking the high yield shelves, while a large number of budding flowering bell, to be fat, water demand up to the accumulation of dry matter is also the most, is the formation of a critical period of production. Therefore, cotton to achieve high yield and quality, must be good flowers bell off. The management techniques have the following points. 1 good flower bell fertilizer. In order to ensure a large number of flowering bolls flowering bell on the needs of nutrients for more than peach and early autumn peach, must re-flower bell fertilizer, and fill top-dressing fertilizer. Flower bell