What are the new solar terms in rainy rice fields when mulberry leaves are big in wheat autumn?

Mulberry leaves are big in wheat autumn, which is a new solar term for rice fields in Grain Rain.

Grain Rain is the sixth solar term among the 24 solar terms and the last solar term in spring. The meridian of the sun is 30; Every year from April 19 to April12009, Grain Rain is taken from the meaning of "Rain gives birth to hundreds of valleys". At this time, the precipitation increased obviously. The seedlings in the field are newly planted, and new crops need rain most. Only when the rainfall is sufficient and timely can cereal crops thrive. Like rain, small crops, light snow and heavy snow, Grain Rain is a solar term reflecting precipitation.

In Grain Rain season, obvious rain often begins to appear in southern China, but especially in southern China, once cold air meets warm and humid air, it often becomes rainy for a long time. Qinhuai River is a transitional zone between spring rain in the south and spring drought in the north. From the Qinling-Huaihe River to the north, the spring rain decreased sharply. In the north, Grain Rain is a symbol of the "final frost".

Historical origin

Twenty-four solar terms are special festivals in the calendar, which indicate the change of natural rhythm. There are four seasons in a year, three months in spring, summer, autumn and winter, and two solar terms in each month. Each solar term has its own unique meaning. 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"

The most important feature of Grain Rain is the continuous spring rain, which embodies the significance of "Grain Rain" in agricultural climate and is also the reflection of ancient farming culture on festivals. After the solar term in Grain Rain, the temperature rises, the rainfall increases, and the humidity in the air further increases, which is very suitable for the growth of cereal crops.