What did the solar term Song say?

The spring rain shakes the spring and clears the valley, and the summer is full of mountains and summers.

Autumn dew, autumn frost, little snow in winter and cold in winter.

"Twenty-four solar terms" reflect the influence of the sun on the earth and belong to the solar calendar category. It is a knowledge system formed by observing the movement of the sun in a year and understanding the changing laws of the four seasons, climate and phenology in a year. It not only plays a guiding role in agricultural production, but also affects the food, clothing, housing and transportation of ancient people, and even cultural concepts. The current lunar calendar absorbs the solar terms of the trunk calendar as a supplement to the calendar, and is adjusted to conform to the tropic year through the "leap method" to form a combined calendar of yin and yang.

Long summer is the beginning of summer. When wheat fully heads, it begins to blossom and grow. At this time, all kinds of migratory birds entered the country one after another and continued to sow autumn crops. As the agricultural proverb says, "There are small valleys and big mangoes in long summer." Avoid no rain and no wind in summer It is said that it doesn't rain in summer, and drought is the main reason. There are some sayings, such as "No rest in the long summer, wheat comes in the drought", "No rest in the long summer, the plough hangs high" and "East wind blows in the long summer, and the drugstore is closed". Long summer is a rainy season.