How did the solar terms in Grain Rain come from?

The solar terms in Grain Rain are around April 20th every year, so how did the solar terms in Grain Rain come from? Let's get to know each other.

How did the solar terms in Grain Rain come from? Grain Rain is one of the 24 solar terms. Grain Rain pointed out that the increase of rainfall is very beneficial to the growth of cereal crops. April 20th or 2 1 day every year, depending on whether the sun reaches 30? That's Grain Rain. 24 solar terms:

? In mid-March, the soil paste has been pulsating since it rained, and now it is raining on its valley in the water. Rain is silent, just like the rain in my field. At this time, cover the grain and sow, from top to bottom. ? At this time, the weather is mild and the rainfall increases obviously, which has a great relationship with the growth and development of cereal crops. Appropriate rainfall is beneficial to the greening and jointing of overwintering crops and the sowing and emergence of spring sowing crops. There is an old saying? Rain over the valley? , reflect? Grain Rain? Significance of modern agricultural climate. However, too much rain or severe drought will often cause harm and affect the later yield. Grain Rain is in the middle and lower reaches of the Yellow River, which not only shows its agricultural significance, but also shows? Spring rain is as expensive as oil? .

In ancient China, Grain Rain was divided into three stages:? The first Hou Ping was born; The second time, the cuckoo blows feathers; The third stage is Dai Ren's surrender to mulberry. ? After Grain Rain, rainfall increased, duckweed began to grow, then cuckoo began to remind people to sow, and then Dai Sheng birds began to be seen on mulberry trees.

During the Grain Rain solar term, the westerly jet in East Asia will weaken and move northward again, the warm and humid air mass in South China will become more active, the circulation fluctuation in the westerly belt from west to east will become more frequent, and the activities of low pressure and Jianghuai cyclone will gradually increase. Affected by it, there will be continuous rain or heavy wind and rain in the Jianghuai area.

? What kind of cotton was planted before Grain Rain? , and cloud:? Grain Rain doesn't grow flowers, but his heart crawls like a crab? . Since ancient times, cotton farmers have regarded Grain Rain Festival as an indicator of cotton planting, compiled proverbs and passed them down from generation to generation.

Most of the weather proverbs of Grain Rain Festival revolve around the center of rain and no rain, such as? Grain Rain is rainy in summer? 、? It rained in five grains and there was no dry soil for forty-five days? Wait a minute.

There are also solar terms in Grain Rain, such as high temperature and frequent rainy days, which will cause the occurrence and prevalence of pests and diseases of wheat. The vast rural areas should do a good job in the prevention and control of wheat diseases and insect pests according to the weather changes.

Grain Rain? The increase of rainfall is very beneficial to the growth of cereal crops. Grain Rain is around April 20th of the Gregorian calendar every year.