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矮壮素,是一种具有抑制植物细胞伸长而不抑制细胞分裂特性的生长调节剂。它能使植株矮壮、节间变短、茎杆变粗而不影响生殖器官的发育。因而能防止作物疯长、倒伏,促进作物增产。实践表明,棉花用矮壮素处理后,主茎变矮,果枝变短,叶片呈现深绿色,变厚而略小,蕾较大,也呈深绿色。株型紧凑,能抑制旺长,改善通风透光条件,减少蕾铃脱落,提高棉花产量。棉花使用矮壮素的关键时期,是苗期到初花期。使用浓度和方法应该掌握:(1)蕾期:现蕾后有疯长趋势,应用低浓度(十万分之一到二)药液。每亩40—50斤,快速喷施在棉株顶部。(2)初花期:高水肥棉地,雨后往往水发旺长,应在七月上旬每亩
Chlormequat, a growth regulator that inhibits plant cell elongation without inhibiting cell division. It makes plants sturdy, internodes shorter, thicker stems without affecting reproductive organ development. Thus preventing crop growth, lodging, and promote crop yield. Practice shows that cotton treated with CCC, the main stem shorter, fruiting branches shorter, dark green leaves, thicker and slightly smaller, larger bud, but also dark green. Plant compact, can inhibit the flourishing, improve ventilation and light conditions, reduce the loss of buds and improve cotton production. The key period for cotton to use CCC is seedling to early flowering. The use of concentration and methods should be: (1) bud stage: there is a trend of soaring after the bud, the application of low concentrations (one hundred thousandth to two) liquid. 40-50 kg per acre, rapid spraying at the top of the cotton plant. (2) First flowering: high water and fertilizer cotton, water is often long after the rain, should be in early July per acre