Why do you say "heavy snow, ten years of drought"?

Heavy snow, as the name implies, has a large amount of snow and the weather is colder. The solar terms of heavy snow indicate the beginning time and degree of heavy snow, and directly reflect the precipitation, just like the solar terms of light snow, rain and Grain Rain. From astronomy, to the earth landscape, to humanities, the meaning of solar terms in heavy snow is extremely rich.

Like the light snow solar term, the heavy snow solar term is a solar term reflecting the changing trend of temperature and precipitation, and it is also a reflection of ancient farming culture on festivals. Heavy snow is a solar term reflecting climate characteristics. Heavy snow solar terms are characterized by a significant drop in temperature and an increase in precipitation.

Agricultural arrangement of heavy snow and solar terms

Heavy snow solar terms, except for some areas in the south where there is no winter, the rest of the country has been frozen or covered with snow. The average temperature in northeast and northwest China has dropped below-10℃, and the temperature in the Yellow River basin and North China has remained below 0℃, and winter wheat has stopped growing.

Wheat and rape in Jianghuai and its south still grow slowly. It is still necessary to strengthen the field management of wheat, rape and other crops, increase temperature and conserve moisture, and topdressing wax fertilizer to prepare for safe overwintering and growth in the spring next year. Wheat in South China and Southwest China has entered the segregation stage, so it is necessary to apply millet fertilizer in combination with intertillage and do a good job of clearing ridges and draining water for winter crops.

Although the weather is cold at this time, the stored vegetables and potatoes should be checked frequently and ventilated in time to prevent pit rot. Do a good job of keeping livestock warm from the cold, and pay close attention to the construction of farmland water conservancy in early winter.

As the saying goes, "Snow will bring a good harvest". After the heavy snow in winter, the snow is to keep the temperature around the ground and crops, and it will not be lowered again because of the cold current. Therefore, Xue Rui gave crops a better wintering environment, and at the same time, when the snow melted the next spring, it increased the soil moisture content. The content of nitride in snow water is five times that of ordinary rain water, which has a certain effect on fertile fields. Therefore, there is an agricultural proverb that "wheat covers three layers in winter and steamed bread sleeps in the next year".

Refer to the above contents: China Meteorological Bureau-Interpretation of Heavy Snow Solar Terms

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