Analysis of Agrometeorological conditions of autumn sowing in China and production suggestions

Introduction: it is estimated that in October, except for the temperature in the southeast of North China, the east of Huanghuai River, the southeast of northwest, the east of southwest and the north of South China, the temperature in most parts of the country is on the high side This will be conducive to the mature harvest of crops in the field, timely stubble, and the smooth progress of autumn sowing, and provide sufficient heat for the seedling emergence and seedling growth of winter wheat and rape It is estimated that in October, the precipitation in the East and south of Northeast China, North China, most of Huanghuai and northeast of Southwest China is more than that in the same period of the year This will further improve the moisture content in North China and southwest China, and provide sufficient water for autumn sowing; however, due to the recent excessive precipitation in some areas of Huanghuai, the precipitation in October will aggravate the soil moisture condition, which is not conducive to the smooth progress of autumn sowing After autumn, the precipitation in the Midwest of Northwest China and some parts of the west of Jiangnan is less, and there are different degrees of drought The continuous lack of rain in October will lead to the development of drought, which is not conducive to the timely growth of autumn seeds and crop seedlings Suggestions: 1 Most parts of the country have entered the busy season of autumn harvest and autumn planting All regions should seize the fine weather, harvest and dry the mature autumn harvest crops in time, so as to avoid late stubble and delay autumn sowing 2 All regions should grasp the current good soil moisture conditions and carry out autumn sowing in time Huanghuai and Jianghuai wet areas should turn over the land and dry the fields The central and western regions of Northwest China and the western regions of Jiangnan should actively build soil moisture to ensure the smooth seeding of winter wheat and rape For the fields that have already sprouted, the seedlings should be checked and replanted in time to achieve the full seedling.