It is expected that there will be a strong wind and cool weather from north to south in the province from the night of the 17th to the 20th. There will be weak precipitation in some areas, the process will cool down 8~10°C, and the gusts in the rivers and plains and plains will reach 7-8; after the cold air The lowest temperature in the north of the country can be reduced to 16-18 °C in the north, 15 °C in the local mountainous area; 19~21 °C in the southern part of the country; after 19 days, the cold weather in the northern part of Jiangxi Province can be around 3 days (that is, the late winter rice cold damage). Locally reach moderate cold dew.
Recently, in most places in Jiangxi Province, the heading and flowering period is in the second night. The cold dew wind has an adverse effect on the heading and flowering of late rice, which may cause the seed setting rate to decrease and affect the yield. It is recommended that the two-night field at the beginning of the heading should be sprayed with “9:20†in time to promote early-early spikes; before the cold air comes to other fields, use deep water, spray heat preservation agent and warming agent to reduce the influence of cold air; When the air turns fine, it will be drained in time to improve the soil temperature. For the water and land transportation, aerial work, construction in progress, outdoor billboards, temporary structures, etc., attention should be paid to the adverse effects of cold air and strong winds; urban and rural residents should add clothing in time to prevent diseases such as colds.
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