Waterlogged cotton field early take measures to remedy

Recently, the province experienced continuous rainy weather with heavy rainfall, resulting in some waterlogged cotton fields. Zhang Peitong, a cotton researcher at the Jiangsu Academy of Agricultural Sciences, said in an interview with reporters that the functions and growth of roots, leaves, and other organs of cotton after severe waterlogging have been severely affected, and cotton wilt and verticillium wilt have been aggravated. After the cotton fields are damaged by waterlogging, measures should be taken to remediate them, so as to promote the rapid recovery and growth of cotton plants and prevent the effects of diseases.
The shorter the flooding time is, the smaller the damage is, and the easier it is to recover. The drainage system should be dredged and drained quickly. Frequent rainfall during the rainy season. Clean up the ditch, Tiantougou, and drains in time to ensure the openness of the ditch. After the heavy rain, it is necessary to inspect the gully system in a timely manner to clear the silt system in time so that the rain will stop. At the same time, be prepared to prevent further rainfall.
Timely support of heavy rains is often accompanied by strong winds. Cotton plants are easy to fall down and should be fed immediately after the rain stops. Because the soil is soft, the cotton plant is easy to fall again after the support, and it should be completed with Qinggou and Peilong. During the operation, you should lightly step on it to reduce the damage to the cotton roots.
In scientifically fertilized cotton fields that are affected by flooding, they should be sprayed with foliar fertilizer immediately after the rain stops. They can be sprayed with foliar fertilizer such as urea (2%), potassium dihydrogen phosphate (0.4%), and green wind 95. Once in 5 days, spray more than 3 times continuously. When the soil moisture in the field is appropriate, timely application of available nitrogen fertilizer, usually 10 kg of urea per acre. After the fertilization, we paid close attention to the growth of cotton and found that there was a long trend and timely spraying of mepyl chloride.
When the soil moisture content of the cultivating cotton field is appropriate, timely cultivating in order to loosen the soil, increase the oxygen content of the soil, and promote the recovery of the cotton root system.
Prevention of Verticillium wilt is susceptible to blight and verticillium wilt from flower budding to flowering. In case of continuous heavy rain, the surface runoff is large, which is conducive to the spread of germs. With proper temperature and humidity conditions, the disease will develop rapidly. At present, the sporadic disease field should be removed in time and transported out of the field and buried or burned. Cotton field with high incidence of Fusarium wilt and Verticillium wilt should be combined with chemical control at the same time as cleaning serious diseased plants. It is possible to use 50% carbendazim WP for each mu, or 12.5% ​​for more than 12.5% ​​salicylic acid suspension. Milliliter, or Bixiu Dan 50% Bromobromide isocyanuric acid soluble powder 20 grams, etc., mixed with fulvic acid and green wind 95 and other foliar spray, and the diseased plants are watered with 1% ammonium sulfate solution or 2% ammonium bicarbonate The solution and 50% carbendazim wettable powder (1000 times liquid) mixture to control the development of the disease, promote plant growth robust, improve disease resistance and compensation.