What influence did beginning of spring in the twenty-four solar terms have on ancient agriculture?

Beginning of spring is divided from astronomy. On February 4th or 5th every year, when the sun reaches 3 15 degrees, it is the beginning of spring. In climatology, spring refers to the period from the average temperature 10 to 22 degrees.

In beginning of spring, the growth of crops in early spring is accelerated, and the water consumption for bolting rape and jointing wheat is increased. It is necessary to topdress fertilizer in time to promote growth. Agricultural proverbs remind people: "When it begins to rain in spring, get up early and go to bed late." Da Chun also began to prepare for farming.

At this time, although the weather in North China and Northeast China is getting warmer, it is still cold. As the peasant proverb says, "if you don't like spring, there are still forty days of cold."