What is the significance of Jing Ke and White House in agricultural production?

Twenty-four solar terms faithfully reflect the climate characteristics of the Yellow River basin, indicating that the solar terms of temperature include slight summer heat, great summer heat, intense summer heat, slight cold and severe cold. There are seven solar terms indicating precipitation: rain, Grain Rain, white dew, cold dew, first frost, light snow and heavy snow, most of which are in the spring and autumn sowing season, which emphasizes the important role of water in agricultural production. Rainwater solar term means the beginning of rainfall and the beginning of rainfall increase. White dew, cold dew and first frost are precipitation phenomena in these solar terms, but the significance of temperature is more important. They can also be used as solar terms to indicate the degree of cooling, indicating that the length of sunshine is divided into two parts, reflecting the seasonal change of sunshine hours. These solar terms in the twenty-four solar terms clearly show the seasonal changes and turning points of the climate. In other solar terms, the fright indirectly indicates the increase of ground temperature, the Qingming and Xiaoman indicate the increase of temperature through images, and the awn species indicates the arrival of summer through agricultural activities. Solar terms all represent climate characteristics.

The establishment and development of the 24 solar terms are closely related to the development of agricultural production. In the early stage of agricultural production, due to farming activities such as sowing and harvesting, people began to gain insight into the relationship between nature and agricultural production, and realized the law of long storage in spring, summer, autumn and winter. By the Qin and Han Dynasties, agriculture had been quite developed, and there were complete 24 solar terms to guide agricultural production. China has always attached great importance to the utilization of farming season and season. In the Eastern Han Dynasty, the Moon Order for Four recorded that farming activities were arranged according to the month and solar terms, while in the Northern Wei Dynasty, the Book of Qi Yao Min made it clear that farming, planting and harvesting were arranged according to solar terms. Later generations also used the twenty-four solar terms as the basis for determining the farming season. With the progress of agricultural production, the content of the 24 solar terms tends to be rich, and the climate changes in different regions are different, so are agricultural activities.