Since November, the cold air has been very hardworking, but none of them can be played.
This time, it came true...
Farmers' friends pay attention to protecting the crops in the land! (There are additional antifreeze measures at the end of the article)
The Central Meteorological Observatory issued a cold wave blue warning at 18:00 on November 8th:
It is estimated that from 20:00 on the 8th to 08:00 on the 8th, the minimum temperature or average temperature in the eastern part of the northwestern region, most of Inner Mongolia, most of North China, northeastern part of China, Huanghuai, western and northern Jianghan, northwestern Jianghuai, and western Jiangnan will decline. 6～8°C, in which parts of northwestern Shaanxi, western and northern Shanxi, central Inner Mongolia, southern Heilongjiang, southern Jilin, northern Liaoning, etc., can cool down to 10~12°C, and the above areas will be accompanied by 4~6 winds. The gust can reach level 7.
In the early morning of the 11th, the lowest temperature 0°C line will be located in the southern part of Gansu, the northern part of the Guanzhong Plain in Shaanxi, and the central part of Hebei to the southern part of the Liaodong Peninsula.
It is estimated that from 20:00 on the 8th to 20 o'clock on the 10th, the lowest temperature or average temperature in the eastern part of the northwestern region, most of Inner Mongolia, most of North China, the northeastern part of China, and the northern part of Huanghuai will fall by 6-8 °C, including the northwestern Shaanxi and western Shanxi. In some parts of Inner Mongolia, central Jilin, northern Liaoning, and other parts of Liaoning, the temperature can reach 10~12 °C. The above areas will be accompanied by 4-6 winds, and the gusts can reach 7 levels.
After the cold air, except for parts of the southwest and southern China, the temperature in the rest will change from the previous high to the low, and will drop to the lowest temperature in the near future on the 11th.
In many places, including Harbin, Beijing, Zhengzhou, etc., the highest temperature will also refresh the lowest record in the second half of this year. For example, Zhengzhou had a maximum temperature of 25 °C yesterday, and only 10 °C on the 11th; the lowest temperature starting from Beijing on the 10th will also fall to around 0 °C.
In addition to cooling, the cold air stocking is very complete! In the cold air key care areas in Inner Mongolia, Northeast China, there will be obvious rain and snow!
It is expected that sleet or snow will occur on the 9th to 10th in the central and eastern Inner Mongolia and most of the northeastern regions. Among them, some areas of northeastern Inner Mongolia, northern Heilongjiang, and eastern Jilin mountains have medium to heavy snow and local snowstorms.
This will be the largest and strongest snowfall in the Northeast since the winter!
After the snowfall, there will be obvious snow in eastern Inner Mongolia, Heilongjiang, Jilin and other places. The local snow is more than 10 cm. It is necessary to be alert to the impact of snow and road freezing on traffic.
How to prevent freezing? Refer to the following measures:
1. Appropriate amount of warm fertilizer to improve the cold resistance of crop plants
In winter, appropriate amount of phosphorus, potassium, boron fertilizer and warm fertilizers such as ash, fire-burned soil or soil-fertilized fertilizer and rotten pig chicken faeces can be added to increase soil temperature, improve plant cold resistance, and cooperate with spraying foliar fertilizer. Improve the soil, promote the growth of the plant and improve the cold resistance of the crop itself.
2, do a good job of crop plant protection, improve winter cold resistance
(1) Coverage. Before the cold, the whole plant can be used for the short crops to protect the cold. The tall crops can be made of waste plastic bags, or covered with straw curtains and other cold-proof materials, which can increase the temperature by 2-3 °C.
(2) Tree trunking. Before the cold weather, the main poles and main techniques of fruit trees and other crops are wrapped with straw or plastic film, which can effectively prevent the occurrence of freezing damage.
(3) Root neck soil. High-ridge cultivation of crops before freezing, the cold-proof effect is also very good.
(4) Irrigation. Irrigation before freezing: If the drought is severe in autumn and winter, the water can be permeated once before the cold. If conditions permit, the water can be re-irrigated once the cold air arrives. The effect is better. Irrigation after freezing: After the crop is frozen, the leaves lose a lot of water, and it is necessary to immediately irrigate the water to reduce the loss of water from the crops.
3, take the cropland smoke, dispel the cold current frost.
Before the onset of low temperature or on the night of frost, weeds, chaff, sawdust, dried leaves or other smoked materials in the crop field for fumigation, stacking 3-5 piles per acre, burning smoke at around 10 o'clock in the evening, and smoking 6-10 hours of marriage time is appropriate.
4. Spray antifreeze to protect crops.
Spraying plant antifreeze, when the temperature is above -5 °C, the crop can be protected from frost. Spraying the refrigerant is one of the methods of preventing rain and reducing disasters with both labor saving and antifreezing effects.
5. Strengthen field management and do a good job in pest control: timely cultivating the soil, making the soil loose and breathable, doing a good job of clearing the ditch, so as to facilitate the growth of the root system, timely remove the frozen dead plants and yellow leaves and dead leaves, and do a good job in winter. Various pest control to make crops grow robustly.
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