Characteristics and customs of solar terms in Grain Rain Manuscript.

The characteristics and customs of solar terms in Grain Rain are as follows:

Grain Rain is the sixth solar term among the 24 solar terms and the last solar term in spring. Combat refers to Chen; The meridian of the sun is 30; Celebrate every April 19-2 1 in Gregorian calendar. Grain Rain was taken from the meaning of "Rain gives birth to a hundred valleys", and the precipitation increased obviously at this time. Seedlings and new crops in the field need the moisture of rain most. Only when the rainfall is sufficient and timely can cereal crops thrive.

Grain Rain, like rain, Xiao Man, light snow and heavy snow, is a solar term reflecting precipitation and ancient farming culture. In Grain Rain season, in the south of our country, it often begins to appear obvious rainy weather, especially in the south of our country. Once cold air meets warm and humid air, it often forms a long rainy weather.

Qinhuai River is a transitional area between the spring rain area in the south and the spring drought area in the north. From the Qinling-Huaihe River to the north, the spring rain decreased sharply. In the northern region, Grain Rain is a symbol of the "final frost". Due to the increase of rainfall after the solar terms in Grain Rain, the humidity in the air is gradually increasing, so we should pay attention to prevent the invasion of "wet evil".

In Grain Rain, there are folk customs such as picking Grain Rain tea, visiting Grain Rain, eating spring flowers and so on. Grain Rain is the last solar term in spring, and Grain Rain is taken from the meaning of "Rain gives birth to hundreds of valleys". In the traditional farming culture, the solar terms in Grain Rain link "valley" with "rain", indicating the precipitation situation, and "rain gives birth to hundreds of valleys".