麦茬花就是在夏季播种的棉花。夏花产量的高低,纤维品质的好坏,除了与品种、栽培技术等条件有关外,与棉花播种期关系非常密切,实践证明夏播棉花播种越早产量越高,纤维品质越好。“春争日、夏争时”这一农谚深刻说明夏花早种的重要性。我所于1977年在新乡县七里营试验黑山棉1号,分别于6月8日,8日、13日播种,分别比6月18日播种每亩增产皮棉72.5%、51.3%和28.2%,霜前子棉分别多21.3%、18.1% Wheat stubble is planted in the summer of cotton. Summer flowers yield level, the fiber quality is good or bad, except with the variety, cultivation techniques and other conditions, and cotton sowing period is very close, practice proved that sowing cotton sowing the sooner the higher the yield, the better fiber quality. The saying goes: “Spring strives for glory at the beginning of summer, and when the summer strikes,” a farmer’s remark profoundly illustrates the importance of early summer flowers. In 1977, we experimented with Heishan Mian 1 at Qiliying in Xinxiang County, sowing on June 8, 8 and 13, respectively, and 72.5%, 51.3% and 28.2% of the lint yield per acre respectively than that on June 18, Pre-frost cotton were 21.3% more, respectively, 18.1%