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棉花全程化控栽培,就是在棉花整个一生中,根据棉花生长发育状况,运用植物生长调节剂进行处理,定向调控棉株各器官的生长,改善其生理功能,最终实现棉花高产优质。目前生产上应用面积最大,成效最显著的调节剂是缩节安(助壮素)和乙烯利。1、缩节安化学调控技术缩节安生产上常用的多为含量25%的水剂,具有轻促重控的作用,可防止棉花蕾期旺长,导致蕾铃脱落。①用法与用量一般在棉花播种前用150-200mg/kg 的缩节安溶液浸种8-12小时。或在3片真叶前用10-20mg/kg 喷施一次,可诱导棉花测根发生,达到促根、壮苗,增强棉苗逆作用。大田喷施缩节安一般2-3次,第1次于初蕾期。亩用0.5-1.0克纯
Cotton is the whole chemical control cultivation, is in cotton throughout the life, according to the growth and development of cotton, the use of plant growth regulators for processing, directional control of cotton plant growth and improve their physiological functions, and ultimately achieve high yield and quality of cotton. At present, the largest area of production, the most effective regulator is shrinking security (mepiquat chloride) and ethephon. 1, reducing the chemical control technology Shrinking An often more commonly used in the production of 25% of the water content, with the role of light weight control, to prevent the cotton budding prosperous long, leading to fall off the bud. ① Usage and dosage Generally cotton sowing with 150-200mg / kg shrinking solution soaked 8-12 hours. Or 3 true leaves before spraying with 10-20mg / kg, can induce cotton rooting, to promote root, strong seedling, cotton seedling to enhance the adverse effects. Field spray shrink safety general 2-3 times, the first time in early bud stage. Mu with 0.5-1.0 grams of pure