Cold air will affect most of the south, and it is necessary to do cold and freeze protection work.

In the next three days, affected by the spread of strong cold air, the temperature in most parts of the country will generally drop by 4-8 °C, and the local temperature will drop by more than 10 °C. On the 16th, Jianghuai, Jianghan, Jiangnan North and West, Guizhou The lowest temperature in the region will fall below 0 °C.
At present, most of the winter wheat in Jianghuai, Jianghan and Southwest China is in the stage of seedling growth to tillering, and some areas have been jointed; most of the middle and lower reaches of the Yangtze River and southwestern areas are in the fifth true leaf to transplanting stage, and some parts of Sichuan and Guizhou enter the opening to the present stage. period. During the cooling process, frost will appear in Jianghuai, Jianghan, north-central Jiangnan and parts of Guizhou, which will affect the winter wheat and rapeseed plants growing in seedling stage to varying degrees, which may lead to icing and shrinkage of the leaves; The growth of open vegetables, potatoes, tobacco, fruit trees, economic forests, and livestock and aquaculture will also be unfavorable.
Agricultural production advice
1. Winter crops, vegetables, flue-cured tobacco, etc. in the south should be protected against cold and frost by straw, film covering, etc., while applying hot phosphorus and potassium fertilizer to improve the cold resistance of crops and reduce the impact of cold (freezing).
2. Fruit trees can adopt measures such as whitening of tree trunks, covering with tree shrouds and cultivating trees, so as to enhance the ability of plants to resist cold and freeze, and to prevent fumigation at night; for bananas, alfalfa and other fruits can be bagged to prevent cold (frozen) .
3, poultry house should take measures to do wind and warm work, to maintain appropriate temperature, to ensure the safety of livestock. Aquaculture areas should promptly overhaul oxygenation and heating equipment, properly deepen the pool water, and do a good job of heat preservation and antifreeze.