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How to manage cotton during the flowering and boll-setting stage? Apply flowering and boll fertilizer heavily, use chemical regulation and pruning to prevent premature senescence
The flowering and boll-setting stage of cotton is the peak period of fertilizer and water demand and the critical period for yield formation. This article introduces the topdressing rate of flowering and boll fertilizer, the standards for irrigation and drainage, the dosage of mepiquat chloride for chemical regulation, the timing of pruning and topping, and pest and disease control techniques, to help cotton growers set more bolls and prevent premature senescence and boll rot.
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When is the cotton flowering and boll stage? How should water and fertilizer management be controlled? How should fertilizer be applied?
After cotton topping, it enters the flowering and boll stage. This period is the key period for cotton yield formation and also the peak period of water and fertilizer demand. During this period, field management of cotton is crucial. So when is the cotton flowering and boll stage? How should water and fertilizer management be controlled? Cotton flowering and boll
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Observe the growth of cotton bolls and apply the cotton flowering and boll fertilizer precisely
In the middle and late stages of cotton growth, flowering and boll fertilizer should be applied accurately according to changes in bolls and leaf color. Generally, where soil fertility is good, seedling and bud fertilizer is plentiful, growth during the bud and flowering stage is vigorous, leaves are large, leaf color is deep, internodes are sparse, bracts do not tightly enclose the flower buds, few bolls are set, and leaf color does not fade at early flowering, flowering and boll fertilizer in such cotton fields should not be applied early; it should be postponed until bolls increase and leaf color turns lighter. Conversely, where soil fertility is poor, seedling and bud fertilizer is applied in small amounts, growth during the bud and flowering stage is weak, leaves are small, leaf color is light, internodes are short and thin, bract color is light, flower buds are few, and leaf color is pale yellow at early flowering, 5-8 kg of urea per mu can be applied as a relay fertilizer
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