The La Ni a phenomenon has formed, what precautions do farmers in China need to prepare?

La Niña is a condition in which the waters of the central and eastern Pacific Ocean become abnormally cold. The southeast trade winds blow the surface of the sun-scorched sea water to the western part of the Pacific Ocean, causing the western sea level to increase by nearly 60 cm compared with the eastern sea, the western sea temperature increases, the air pressure drops, the moist air accumulates to form typhoons and tropical storms, and the eastern bottom sea water rises, causing the eastern Pacific Ocean water to become colder, which means that this winter is cold, when the sea surface temperature drops, it will also mean that the La Niña phenomenon is coming, according to Japanese meteorological experts**, the current La Niña phenomenon is 90% coming, and the domestic official has determined, This winter is set for a moderately strong La Niña.

On the one hand, agricultural management should also pay attention to the effects of cold in autumn and winter. When sowing winter wheat, avoid sowing too late, which will lead to the formation of strong seedlings before winter, which will affect the winter and cause the next crop to fail! In addition, water sources should be irrigated in time before winter to ensure soil moisture.

On the other hand, as a farmer in a rural area, entering the autumn and winter season, the temperature drops, it is necessary to strengthen the insulation and ventilation of the pig farm fence to avoid the stress reaction of the pig farm, and to disinfect the fence in time to avoid strangers from entering! Chinese herbal ingredients can be added to the feed to ensure the safety of pigs in winter!

Of course, farmers who grow fruit trees and vegetable greenhouses should also prevent the risk of cold weather and heavy snow after winter. Fruit tree farmers should turn the soil, fertilize and water in time before the arrival of winter, strengthen pest control, and prune in time to ensure safety and stability in winter!

However, in recent years, as human activities continue to emit greenhouse gases, the trend is to warm, so even if La Niña hits this year, this winter will not be "super cold", but just slightly cooler than usual, so don't worry too much.

First of all, let's talk about what La Niña is, which in layman's terms is a large cooling phenomenon. For farmers, it is good to take these precautions, 1Ensure your own health, compare only your own health can be prepared for everything; 2.

Plant winter crops in advance, and it will be too late to plant them after the big cooldown; 3.Do a good job of keeping crops warm, a relatively large amount of cooling will hinder the growth environment of crops, do some warm work can be prevented, must be prevented in advance.

Combined with the climate in our country, La Niña may cause arable land to be drier than before, so our farmers need to prepare better irrigation measures to keep their arable land moist so as not to adversely affect the harvest.

La Niña will lead to the coldest year in 60 years, farmers must pay close attention to the weather forecast, prepare for the cold, before the low temperature weather comes, postpone the watering and fertilization of crops, or use plastic film to keep warm, or use some cold-resistant drugs to enhance the cold and frost resistance of crops.

La Niña refers to the phenomenon of persistently unusually cold sea surface temperatures in the eastern and central equatorial Pacific Ocean. It will cause 80% of precipitation in northern China, warm in the early winter and strong cold wave in the later winter, farmers should avoid sowing too late when sowing winter wheat, resulting in the formation of strong seedlings before winter, affecting the winter and causing the next crop failure.

On the one hand, in agricultural planting and management, we also pay attention to the impact of cold in autumn and winter. Winter wheat should not be planted too late; On the other hand, as a rural farmer, it is necessary to strengthen the insulation and ventilation of the pig farm enclosure, disinfect the enclosure, and avoid strangers from entering.

Farmers should do a good job in the insulation measures of winter crops, can cover crops with insulation film, and can cover insulation greenhouses if conditions permit, so as to avoid harm to crops caused by severe cold.

First of all, when sowing winter wheat in the north, avoid sowing too late, otherwise it will affect the overwintering of wheat. For farmers planting fruit trees and vegetable greenhouses, fruit tree growers should turn the soil, fertilize and water in time before winter, and strengthen the prevention of pests and diseases, and prune in time.

First of all, the crops should be harvested in advance, because crops are very important for rural people, and secondly, it is very important to take protective measures, and the health problems of rural people are also very important.

In winter, it is necessary to strengthen the insulation and ventilation of the fence of the pig farm to avoid the stress reaction of the pig farm, and disinfect the fence in time to avoid strangers from entering.

The impact of El Niño on China is mainly reflected in the following points:

1) In El Niño years, the summer monsoon weakened, and the location of the summer rain belt in China was southerly, and there was little rain and drought in North China.

2) The middle and lower reaches of the Yangtze River entered the rainy season late.

3) In the autumn of El Niño year, the eastern part of China is prone to precipitation distribution with less in the north and more in the south.

4) There are often warm winters in our country.

5) In El Niño years, tropical storms and typhoons in the northwest Pacific and the South China Sea are less common than normal.

Influence on melons: The weakening of the summer monsoon and the southward shift of the summer rain belt will lead to continuous rainfall in the location of the rain belt, especially in the south of the middle and lower reaches of the Yangtze River, and the rain will come late, often after a continuous sunny day, but just concentrated in the ripe and picking season of watermelon.

Impact on cotton: The middle and lower reaches of the Yangtze River enter the plum rain later, and there is a lot of precipitation, concentrated in the cotton picking season, which is basically similar to the cause of melons.

Impact on maize: Maize is generally grown in northern regions, and El Niño causes persistent dry weather in the north.