MySheen

Beware of cotton premature senescence in summer

Published: 2024-11-22 Author: mysheen
Last Updated: 2024/11/22, After the emergence of premature senescence of cotton, remedial measures are of little significance, focusing on prevention. The first ten days of August is the peak period of cotton flowering and bolling. if the vegetative growth and reproductive growth are well coordinated, it is not easy to senescence prematurely. The earlier the occurrence of premature senility, the more serious the yield reduction. In serious years, premature senility occurred in the middle and late August. How to prevent cotton premature senescence and increase cotton yield is an urgent problem to be solved in cotton production. Here are some measures to prevent cotton premature senility. Pay attention to the way of watering. The summer drought leads to the premature senescence of cotton. If there is no rain in Fuli, it should be watered in time.

After the emergence of premature senescence of cotton, remedial measures are of little significance, focusing on prevention. The first ten days of August is the peak period of cotton flowering and bolling. if the vegetative growth and reproductive growth are well coordinated, it is not easy to senescence prematurely. The earlier the occurrence of premature senility, the more serious the yield reduction. In serious years, premature senility occurred in the middle and late August. How to prevent cotton premature senescence and increase cotton yield is an urgent problem to be solved in cotton production. Here are some measures to prevent cotton premature senility.

Pay attention to the way of watering. Summer drought leads to premature senescence of cotton. No rain in Fuli should be watered in time. Interlaced ditch irrigation should be used and flood irrigation should be avoided. In the cotton field which may have premature senescence in the pruning, it is no longer fine pruning after August, and some superfluous buds can be retained to ensure that there are enough vegetative organs in the cotton field for photosynthesis.

Foliar fertilizer should be sprayed immediately after topping, once every 8-10 days, first nitrogen and then potassium, which can be sprayed until August 10-15. Once fattened, it is difficult to achieve the top of autumn peach. In the later stage, sufficient spraying of available potassium fertilizer twice is very important for bolls, bolls and bolls in the upper part, and potassium is indispensable for the development of cotton fiber, so potassium application can improve lint percentage, especially in years with heavy rainfall in summer days, especially for low-lying cotton fields. Potassium spraying is more necessary. After the end of July, it can also be combined with pest control, spraying with 2-3% urea and 0.2% potassium dihydrogen phosphate every 7-10 days. In case of rain in summer days, ploughing should be broken in time to facilitate root growth, and ploughing should not be too deep to avoid root damage.

 
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