Last Week, Some Cotton Areas Had High Rainfall And High Temperature.

In the eastern part of Northwest China, the western and southern part of North China and the southern part of the country, there was heavy rainfall within the week of Huang Huai. The rainfall was 50~100 millimeters, and some areas were more than 100 millimeters, 1~4 times more than that of the same period of the same year. This caused some farmland soil to be wet, and the low-lying farmland appeared waterlogging. Rainfall accompanied by small amount of sunshine at the same time. The sunshine in most areas was less than 30 hours, which was not conducive to flowering and pollination of cotton.

In the Jianghuai and Jianghan areas, the temperature is 1~4 degrees higher and the precipitation is less than 5. In the eastern part of Yangtze Huaihe River and the southern part of Jianghan, there is also a high temperature of 3~5 days maximum temperature of 35 degrees Celsius. In terms of disasters, hail weather occurred in Xinjiang, Anhui and other provinces during the week. Thunderstorms and strong winds occurred in provinces such as Shandong and Anhui, and local cotton and other crops were affected. Under the influence of continuous high temperature and little rain, the Jianghuai River, the southern part of Jianghan, the northeastern part of the Yangtze River and the western part of the Yangtze River decreased rapidly. The growth and development of drought outcrops, cotton and other crops were affected in some parts of Hubei and Hunan.

It is estimated that in the next week, there will be more rainfall in the southeastern part of Northwest China, central and southern parts of North China, Huang Huai, Western Sichuan basin, Southern China coast and Western Yunnan. The rainfall in most areas is 40~70 millimeters, with 80~120 millimeters and 150~220 millimeters in some areas. Precipitation is beneficial to increasing soil moisture and storing water in reservoirs and reservoirs. However, local heavy rainfall can easily cause short-term water accumulation or waterlogging in low-lying farmland, which will affect the growth and development of crops. In the Jianghuai, Jiangnan and Chongqing areas, there will be a large range of high temperature with a daily maximum temperature exceeding 35 degrees Celsius. Among them, the number of high temperature days in the southern part of the Yangtze River can reach 5~7 days. Continuous high temperature will lead to drought or persistent development in these areas, which is not conducive to flowering and Bolling of cotton.

It is suggested that all localities should strengthen field management, rationally fertilize, and promote healthy growth and normal growth of crops. In order to reduce the adverse effects of Waterlogging on upland crops such as cotton, it is necessary to clear the gully and drain waterlogging in a timely manner after heavy rainfall. Cotton fields should be timely controlled to improve ventilation and light transmittance, prevent the shading of cotton fields and reduce the abscission of flowers and bolls.