Xinhe: Cotton enters the boll cracking stage. How to strengthen post-production management
At the end of August, the cotton fields in Xinhe County began to enter the boll cracking stage. On the 29th, agricultural technicians from the Xinhe County Meteorological Bureau went to the cotton fields to conduct cotton surveys and found that some cotton plants have begun to crack and entered the boll cracking stage, but there are still There has not been a large area of cracked bells, and the current cracked bell rate is only 3%. Because the quality of cotton management in the later stage will directly affect the yield and quality of cotton, agricultural technicians from the Xinhe County Meteorological Bureau provide farmers with cotton field management measures in the later stage of boll cracking.
The first is the meteorological conditions during the cotton boll-bursting period.
Suitable meteorological conditions: The suitable temperature for cotton fluffing is the average air temperature of 25~30℃ and the relative soil humidity of 55~70%. High temperature and sunny weather are conducive to vomiting.
Unfavorable meteorological conditions: the lowest temperature for cotton tufting is 16°C, and continuous rainy weather aggravates cotton boll rot, causing cotton to become green and late to ripen, causing poor fiber development, etc.
It is expected that Xinhe County will be mainly sunny to cloudy in the next three days, with thundershowers from afternoon to night, with a maximum temperature of 30℃, a minimum temperature of 17℃, northerly gusts of level 4 to 5, and outlet winds of level 5 to 6. The temperature will not change. Large; relative humidity 40~60%. The climatic conditions in Xinhe County will have little impact on cotton in the next three days. The average temperature will remain at 30~31℃. The precipitation is predicted to be small and will not have a serious impact.
In September, cotton is in the boll-breaking and fluffing period. The closer to the later stage of cotton growth, the more important field management is. Therefore, Xinhe County agricultural technicians suggest that in the later stage of cotton fields, pruning, fertilizer supplementation, insect control and disease prevention should be done in a timely manner. Only by removing weeds and other field management measures in the field can we achieve stable and high cotton yields. Because pruning can improve the ventilation and light transmission conditions of cotton fields, clear weeds in the field in time, increase light transmittance, and reduce nutrient consumption, it is beneficial to increase autumn peaches, increase boll weight, promote early maturity, and prevent boll rot; at the same time, the root absorption capacity of cotton plants is weakened in the later period. In order to supplement the insufficient absorption of nutrients by the roots, external top dressing can be used to supplement nutrients. Secondly, there are many sudden diseases and insect pests after the flocculation period, which must be prevented and controlled in time. Thereby improving the cotton boll maturity and fluffing rate, ensuring an increase in cotton income and production.
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