The recent temperature in Hunan is significantly higher, the precipitation is generally less, and the sunshine is sufficient. At the end of the year, affected by strong cold air, the temperature drop in all parts of the province was large. Most of the local processes cooled down to over 14 °C. Light rain occurred in most places, which made the soil moisture slightly improved compared with the previous period, but the cooling slowed the early growth and lacked resistance. The growth of rapeseed with cold exercise has a slight effect. At present, the province's rapeseed is generally in the bolting period, and the accumulated temperature at the end of the planting period is 1395～1785°C, and most places are 102-170°C more than the same period of the previous year. The warm light conditions make rapeseed grow faster, but the warm weather conditions lead to the decline of cold resistance of wintering crops. At the same time, it is also beneficial to the wintering of eggs and the growth of pathogens.
It is expected that the average temperature in the whole province will be slightly lower or lower in mid-February, with Shonan at around 6 °C, other regions at around 5 °C, and extreme extreme temperatures at -4 to -2 °C. The rainfall in the province is slightly less or less, from 10 to 20 mm in the north and 20 to 40 mm in other areas. The rainy day is about 6 days. The main precipitation process in the first ten days: from 12 to 13 days, it was affected by the high-altitude glide trough and the cold air from the south. There was a light rain or sleet weather in the province. There was moderate rain or sleet in the southern Hunan area, and freezing occurred in the mountainous areas. It was affected by high and low troughs around 16 to 17 days. There was a small to moderate rain process in the province, and there was moderate to heavy rain in the south of Hunan. &;
According to the weather forecast in mid-February, the recommendations for agricultural production are as follows:
1. It is expected that the temperature will be low in the middle of the year, and there may be rain (snow) freezing weather. All localities should take countermeasures in advance, and apply organic fertilizers such as soil and fertilizer to the rape fields to increase soil temperature and enhance their cold resistance.
2. At present, rapeseed is still in the vegetative growth period. While doing well in the management of fertilizer and water in the field of rapeseed, it is necessary to pay attention to the work of clearing the ditch after rain (snow) weather to reduce the humidity in the field and promote the growth of crop roots.
3. At present, it is the transition period from winter to spring. The cold air activity is frequent and the temperature is relatively large. It is necessary to strengthen the management of vegetables and greenhouse vegetables in the field, and prevent cold and freeze. Strengthen the storage management of all kinds of vegetables and fruits. When the weather is warming up, pay attention to reducing the covering and prevent the high temperature from decaying and deteriorating.
4. Grasp the good weather and prepare the material preparation for spring ploughing as soon as possible. At the same time, all localities should strengthen the prevention and control of spring pests and diseases.
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