Affected by the strong El Niño, since late June, especially in early July, most areas of Hubei province have experienced heavy precipitation and heavy rainfall. The total rainfall reaches 400 mm or more. The rainfall is large, the frequency is high, and the duration is long. rare. The water level in the rivers and lakes has continued to rise to a high level. The waterlogging disasters of cotton cover a wide range of areas with large areas and heavy losses. The impact is unprecedented. In order to effectively remediate and resume production after the disaster, guide large-scale cotton disaster relief efforts, and give play to the support role of science and technology in disaster relief. There are four main performances of current cotton disasters: First, the cotton fields with high water content and high topography; Water is not much, dark water is difficult to drain, and the development of cotton roots and the normal growth of cotton are severely inhibited. The second is disaster relief, low-lying cotton fields, serious water, and cotton plants flooded. The third is that the waterlogging and coexistence of cotton fields, washed by the rain and sand, the seedlings poured sand, waterlogging and heaviness. The fourth is the flooding of cotton fields that have been in the top for more than 3 days. The classification proposes the following technical opinions. 1, for the damage to cotton fields. (1) To dredge the four ditch in time, clear the ditch, reduce the groundwater level, catch the gap between the rain and sunny days, quickly clean the ditch, reduce the groundwater level, so that the water can be drained, dark water filter; (2) Slough soil breaks down the soil and reduces soil moisture. After sunny days, loose soil, cultivator, broken board, and loose temperature, create good loose soil ventilation conditions, and promote root growth and development; (3) strengthen the tone. At present, it is the peak period of cotton growth. Rainy climate is likely to form water seedlings. To strengthen the spraying of dilute amines, according to the size of the seedlings, 1-2 grams per mu is a critical period for shaping the ideal plant type of cotton; (4 ) Strengthen extra-root fertilizer. The loss of fertilizer from the cotton-stained cotton field must be supplemented with fertilizers from outside the roots, 20-30 kg of compound fertilizer in the Mushi, and the ability of the cotton seedlings to be absorbed by the roots of the seedlings is reduced. Foliar spraying fertilizer must be applied to spray 2% urea plus 0.2% dihydrogen phosphate. Potassium or cotton-specific fertilizers and foliar fertilizers are sprayed 1-2 times on leaves; (5) Controlling leafhoppers and cotton aphids can be sprayed with 2.0% bifenthrin 1000-fold solution. The control of cotton blind lice can be sprayed with 10% high efficiency cypermethrin 1500 times. To strengthen the prevention and control of blind warts will not only be conducive to the occurrence and harm of blind warts, but also be detrimental to the prevention and control of work, and should catch the rain gap and use long-acting special-effect pesticides for prevention and control; (6) Prevention of fusarium wilt and Verticillium wilt can be used 700 times of thiophanate-methyl irrigation root control; (7) control of grass damage; (8) timely support seedlings. At present, the soil is softened by water and the cotton seedlings are easy to fall. It is necessary to strengthen field inspections and properly adjust the amount of soil moisture. 2, for the disaster relief cotton fields. In the implementation of the eight measures of waterlogging cotton fields at the same time. The first is to strengthen the application of accelerating regulators and promote the rapid recovery of cotton seedlings. Once in 4 days, spray 3 times. The second is to strengthen the cultivation of ridges. On the one hand, it enhances the permeability of the soil, raises the ground temperature, and promotes the development of the root system. On the other hand, the growth of the roots of the cotton seedlings was inhibited and the lodging resistance was reduced. By cultivating the soil for ridges, cotton was resistant to lodging. 3, cotton fields for the coexistence of waterlogging. While implementing the disaster relief measures for the disaster-ridden cotton fields, it is necessary to do a good job in helping the seedlings and seedlings in a timely manner. Washing seedlings should be carried out when the water in the cotton fields is held. Wash off the sand on the cotton leaves and cotton stalks. If there is no accumulation of water in the cotton fields, use a sprayer to spray water to wash the seedlings. 4. For cotton seedlings that have been flooded for more than 3 days. General cotton seedlings have no hope of survival and they are ready to change their species. To change crops such as rice, soybeans, vegetables, corn, red peony, and autumn quinoa, rice will be broadcast live for the second night, and will be settled before July 9th at the latest, and harvesting with early rice before July 25th will also result in a better harvest. . Brama Fillet,Frozen Brama Fillet,Brama Brama Fillet,Frozen Brama Brama Fillet Zhejiang Zhoushan Jiaze Aquatic Co., Ltd. , https://www.tianjia-aquatics.com