Strong cold air strikes, agricultural production pays attention to cold and freeze
Affected by the cold weather, from 05:00 to 05:00 yesterday, snowfall or sleet occurred in most of Beijing and north-central Hebei, accompanied by severe winds and cool weather. It is expected that between day and night, strong cold air will sweep across the eastern part of the country, and some areas have heavy snow. Experts advise the public to pay attention to wind and cold and traffic safety, and facilities agriculture and animal husbandry should take measures to prevent cold and freeze.
The Central Meteorological Observatory issued a blizzard orange warning at 6:00 today. It is estimated that from the 4th to the 6th, there will be rainy sleet or snow precipitation weather in the south-central region of central and eastern Inner Mongolia, most of North China, northern Huanghuai, and eastern part of Northeast China. From the 4th to the 5th, the south-central part of Inner Mongolia There are heavy snow (5～9 mm) in the north and west of Hebei and most of Beijing. Among them, part of the south-central part of Inner Mongolia, north of Hebei, western part of Beijing and other places have blizzard (10-18 mm), and the southern part of Inner Mongolia There is heavy blizzard (20-30 mm) in the local area.
Affected by strong cold air, from 4th to 5th, the southern part of Inner Mongolia, parts of eastern part of North China, southern part of Northeast China, eastern Huanghuai, eastern part of Jianghuai, and parts of central and eastern Jiangnan will be cooled by 6-8 °C. The temperature drop in the peninsula can reach 10~12 °C. There are 5 to 6 grades in the eastern part of Inner Mongolia, the south of the northeastern region, North China, Huanghuai and Jianghuai, and the north wind of the gust 7 is. The Central Meteorological Observatory continued to issue a cold wave blue warning at 6 o'clock today.
Cold and frost-proof work should be done for the wind and snowfall
Facility agriculture should strengthen the greenhouse scaffolding, and the windy weather should be pressed against the greenhouse film. If there is a tympanic membrane in the windy weather during the day, immediately press the membrane line or put down the part (half-volume) of grass in the middle of the roof in front of the greenhouse. If the curvature of the front roof of the greenhouse is small and the pressure of the laminating film is not strong, it is best to use a bamboo pole or a wooden pole to press the membrane. When the night lamination line is blown away by the wind, it should be pulled back to the original position in time. Hey, use a wooden pole or stone to press it firmly. Before the arrival of the blizzard, check the fixing of the plastic film. The film line or the pressure bar must be fixed firmly and the grass cover should be tightly pressed. Such weather can be properly disclosed later, but it must be emphasized that in the case of even cloudy snow, the daily exposure time should not be less than 4 to 5 hours. Although there is no direct light in this kind of weather, it can be warmed by the scattered light, and there is a short-term temperature drop after the exposure, but it is generally 3 to 4 °C higher than 30 minutes after the uncovering.
Animal husbandry should pay attention to the work of keeping warm animals and feed reserves to prevent the adverse effects of strong winds, cooling and snowfall. For example, for the cowshed and shed in the open shed, it can be tightly sealed with plastic film or straw to prevent the wind from entering the temple. At the same time, it is best to put dry straw on the bar to keep warm, and care for young and infirm livestock to ensure that the room temperature reaches 15 To 18 degrees. In addition, the civil structure of the barn should be reinforced, remove the roof of the snow, to prevent the collapse of the barn.
In the northern winter wheat area, attention should be paid to cultivating strong seedlings to prevent freezing damage. In the northern winter wheat area, we should pay close attention to the weather changes, and according to the cooling situation and the timely fertilization and watering of the wheat field, promote the formation of strong seedlings and prevent frost damage. For plots with insufficient moisture (less than 12% soil moisture in the 0-3 cm soil layer during the three-leaf period), the daily average temperature should be stable at 3 °C ~ 4 °C, that is, when the soil is frozen overnight, the winter water is poured; The seedlings should be poured first, and the fermented seedlings should be poured after the seedlings, and the strong seedlings that are sufficient for the bottom can also be poured. It can be combined with irrigation water, but the amount of nitrogen applied should not be too large. Generally, 3 to 5 kg of urea per acre or 10 to 15 kg of ammonium bicarbonate; for fields that are not fertilized, potassium or phosphorus or potassium, It is also possible to apply an appropriate amount of phosphorus and potassium fertilizer in the ditch before irrigation.
In addition, meteorologists remind the public to pay attention to wind and cold and traffic safety, and reduce unnecessary outdoor activities. The government and relevant departments are responsible for emergency work against snow and frost damage, paying particular attention to strengthening roads, power facilities, simple buildings and trees. Maintenance, especially the use of tree-supported transmission lines, road cleaning and snow melting work.
Specific forecast:
From 08:00 to 5:00 on the 4th, there were large blizzards in the south-central part of Inner Mongolia, north and west of Hebei, and most of Beijing. There were heavy blizzards (20-30 mm) in the south-south of eastern Inner Mongolia; northeastern part of Hebei. There are moderate rains in southern and eastern Liaoning, and heavy rains in parts of eastern Liaoning. There are 5 to 6 grades in the eastern part of Inner Mongolia, the south of the northeastern region, North China, Huanghuai and Jianghuai, and the north wind of the gust 7 is. In the north and central part of the Yellow Sea, there will be 7-8 grades and gusts of 9 grades of southeast winds. The Bohai Sea will have 5-7 grades and gusts of 8 grades.
From 08:00 to 6:00 on the 5th, there were small to medium snow (rain) or sleet in the northern part of Xinjiang, the south-central part of the northeastern part, and the Shandong peninsula. Some parts of the northwestern part of Xinjiang have heavy snow. There are small to moderate rains or showers in most parts of southwest China, parts of central and western China, and southeastern Tibet. There are 5 to 6 northerly winds in the central and southern parts of the Northeast, the eastern part of Huanghuai, and the eastern part of the Yangtze River. There are 5 to 7 northwest winds in the Bohai Sea, the Bohai Strait, the northern and southern parts of the Yellow Sea, and 6 to 8 in the middle of the Yellow Sea. The Bohai Sea, the Bohai Strait, and the Yellow Sea will have a 6 to 7 level, and a gust of 8 to the west to the northwest.
From 08:00 to 7:00 on the 6th, there are small to medium snow (rain) or sleet in the northern part of Xinjiang, the eastern part of the northeastern part of China, the western Sichuan Plateau, and the southeastern part of Tibet. Among them, some parts of the northwestern part of Xinjiang have heavy snow. In the southeastern part of the northwestern region, most of the southwestern region, the western part of the south of the Yangtze River, and the central and western parts of southern China, there are small to moderate rains. There are 5 to 6 winds in the central and western Inner Mongolia, the eastern part of the eastern region, and the Shandong Peninsula.
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