When is the annual solar term for heavy snow?

Heavy snow is the third solar term in winter. Every year on February 7th or 8th of Gregorian calendar 12, when the sun moves to 255 degrees of the yellow longitude, it is called "heavy snow".

The heavy snow season is divided into three periods: "When birds wait, they don't sing;": Second, wait for the tiger to pay; Wait for you to stand out. " In other words, due to the cold weather at this time, Hao Han birds no longer sing; At this time, Yin Qi was in its heyday, the so-called prosperity and decline, Yang Qi had sprouted, and the tiger began to courtship; "Liting" is a kind of bluegrass, which feels the germination of yang and sends out new buds.

People often say that "snow will bring a good harvest". In severe winter, snow covers the earth, so that the temperature around the ground and crops will not drop very low because of the cold current, and winter crops create a good wintering environment. When the snow melts, the soil moisture content is increased to meet the needs of crop growth in spring. The content of nitride in snow water is five times that of ordinary rain water, which has a certain effect on fertile fields. There is an agricultural proverb called "wheat covers three quilts this year and sleeps with steamed bread next year."