棉花现蕾后,植株进入营养生长与生殖生长并进时期,井仍以营养生长为主,并延续到开花盛期,约25—30天。此时期根系生长达高峰期,营养体迅速增大,蕾期对水肥十分敏感,水肥不足植株生长缓慢,影响生殖生长,若水肥过多,植株徒长.因此蕾期栽培管理要协调好营养生长和生殖生长的关系,要求在壮苗早发的基础上实现稳长,增蕾稳长,搭好丰产架子。 田间增蕾稳长的长相为:开花时11—12个叶片,单株果枝7—8个,达到株型紧凑、茎杆粗壮节间短、叶片大小适中、果枝多、蕾多、蕾大、早开花。 棉花蕾期管理的主要任务是:对于生长势弱的棉花,应促进快长,尽量增大叶面积、多现蕾;对于中等产量和高产的棉花则在于实现壮株稳长,搭好丰产架子,节密蕾多早开花,一切措施围绕“稳长”这一要求 Cotton budding, the plant entered the vegetative and reproductive growth into the period, the well is still the main vegetative growth, and continued to flowering period, about 25-30 days. During this period, the root growth peaked, the vegetative body rapidly increased, and the bud stage was very sensitive to water and fertilizer. The plants with insufficient water and fertilizer grew slowly and affected the reproductive growth. If excessive water and fertilizer, The relationship between reproductive growth requires strong growth on the basis of strong early seedlings, increased bud stability, set a good yield shelves. Stable growth of the field by the bud as the phase: when the flowering 11-12 leaves, fruiting branches 7-8 months, to compact plant type, stalks stout internodes short, moderate leaf size, fruiting branches and more Lei Lei, Lei big, Early flowering. The main task of cotton bud management is: for weak growth of cotton, should promote fast growth, as far as possible to increase the leaf area, more budding; for medium-yield and high yield of cotton is to achieve strong and stable growth of Zhuang, take a good yield shelves , Section Budlet early bloom, all measures around the “steady” requirement