棉花壮苗早发是多现早蕾,多结早桃,达到早熟丰产的基础。沔阳县红潭公社潮愿八生产队,1972年60亩棉花大面积对比试验证明:4月底齐苗,并加强苗期早管细管达到壮苗早发的,比管理迟,苗弱迟发的,现蕾、开花早7—9天;伏前桃多1.5个,伏前桃和伏桃比例高21.5％;10月15日以前的收花量达95％以上,每亩增产皮棉17.4％,早熟增产效果显著。壮苗早发的标准,经新洲、沔阳、天门等县棉区群众多年植棉丰产实践总结为:“清明谷雨播,四月底齐苗,割麦(小麦茬花)三、四叶,秆粗根发达;芒种早现蕾,真叶七、八片,苗高四、五寸,叶薄顶芽肥;小暑前开花,稳搭丰产架,果枝上十个,蕾多密节巴”。他们并总结棉花全苗、壮苗与早发的辩证关系是:“全苗是壮苗的前提,壮苗是早发的基础,而 Early seedling cotton seedlings are more early buds, early knot more knot, to achieve the basis of early maturity and high yield. Leiyang Hongtong commune tide is willing to eight production teams in 1972, 60 acres of cotton large area comparative test proved: Qi Miao by the end of April, and to strengthen early seedling early seedlings to strong seedlings early onset, than the late management, weak seed late Hair, bud, flowering as early as 7-9 days; Peachuo volvorn 1.5, volts and peach Vase high proportion of 21.5%; before October 15, the amount of flowering of more than 95%, yield of 17.4 per mu of lint per mu %, Early maturity yield significant effect. Strong seedlings early hair standards, the Xinzhou, Leiyang, Tianmen counties cotton area for many years cotton high yield practice summed up as: “Clear Sky rain, the end of April Qi Miao, cut wheat (wheat stubble flower) three or four leaves, Stalks with thick roots developed; bud early budding, true leaves seven, eight, seedling height four, five inches, thin bud bud; small summer before flowering, stable take the horsepower, fruiting branches on the ten, Lei multi-dense bar. They sum up the whole cotton seedling, strong seedling and early onset of the dialectical relationship is: ”the whole seedlings are strong premise, strong seedling is the basis of early onset, and