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Two cold air processes in the next ten days are not good for autumn crops and facility agricultural production
According to the forecast of the Central Meteorological Observatory, there will be two cold air processes in the next ten days, and some areas will have a significant cooling, which will adversely affect autumn crops and agricultural production.
Specific forecast: From October 31 to November 3, cold air will affect the middle and lower reaches of the Yangtze River and its north, and the temperature will drop by 4-8 °C. The temperature in some parts of Inner Mongolia and the northeastern part of the Northeast will drop by 10 °C. Left and right, accompanied by 4 to 5 northerly winds. From November 4th to 8th, another cold air will affect most of China from west to east; in most parts of the north, there are 4 to 6 northerly winds, and the temperature drops by 4-8 °C, including in North China and Northeast China. The cooling rate in some areas can reach 10~12 °C. However, in the next 10 days, the southern boundary of the first frost line in eastern China will not be significantly southward, and will remain in the northern part of Henan and parts of northern Susong. Most of the winter wheat in the north is in the period of emergence and tillering. Most of the transplanted rapeseed in the Yangtze River Basin is in the transplanting period, and the live rapeseed is in the seedling stage. The cooling weather has little effect on the tiller growth of winter wheat in northern China and the transplanting of rape in the middle and lower reaches of the Yangtze River, but it has certain adverse effects on facility agriculture and animal husbandry production.
Recommendation:
First, the northern winter wheat area should strengthen field management, timely loose soil, fertilizer, cold air before the arrival, timely suppression, anti-freeze and protection; timely watering in areas with ambiguous deviations, promote effective tillering and wheat seedling rooting, and strive to form strong seedlings before winter .
Second, facility agriculture needs to do windproof reinforcement and insulation work, and open-air vegetables should be harvested and stored in time to avoid low temperature hazards. The northern pastoral area needs to do the cold, warm and windproof work of the livestock.
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