Weather conditions of domestic wheat production areas in the first ten days of March

Introduction: in this ten day, parts of Northern Xinjiang and northern North China are still in the overwintering stage; most of the north and the north of Jianghuai are in the rejuvenated stage; most of the south of Jianghuai and Jianghan are in the tillering stage; most of Sichuan and Guizhou are in the jointing stage; most of Southwest Sichuan and Yunnan are in the heading stage In Northern Xinjiang, the temperature is 4-6 ℃ higher and covered with 10-25 cm snow, which is good for winter wheat to survive safely Most of the winter wheat areas in the north had significantly lower temperature in February, which delayed the return period of winter wheat to green The temperature in this ten day period increased significantly, the average temperature in ten days was 1-3 ℃ higher than that in the same period of the whole year, with sufficient light, which was conducive to the return of winter wheat to green growth However, the temperature in North China and the eastern part of the Huanghuai river was low, which slowed down the growth and development of winter wheat In the Middle East of Northwest China and the west of North China, the temperature is on the high side, the precipitation is on the low side, and the soil moisture is on the low side, which has a little influence on the green growth of winter wheat At the end of ten days, severe cold weather appeared in most areas of northern China, which caused some of the sprouted winter wheat to suffer from frost damage The temperature in Jianghuai, Jianghan and the eastern part of Southwest China is 1-3 ℃ higher than that in the same period of the whole year, and the sunshine is 50-80 hours, which is good for tillering, jointing and booting of winter wheat In the west of Guizhou and most of Yunnan, there are strong cooling, rainfall (snow) processes, snow disaster and freezing injury, which are very unfavorable to the growth and development of winter wheat at jointing and heading stage