In what season was Grain Rain introduced to Grain Rain?

1, Grain Rain, is the sixth of the twenty-four solar terms, the last solar term in spring, and also a solar term after Qingming Festival, which is the time for spring ploughing. The longitude of the sun is 30 degrees, and it crosses the Gregorian calendar from April 19 to April 2 1 day every year. Grain Rain means "Rain gives birth to hundreds of valleys", and the precipitation has increased obviously at this time. The seedlings and new crops in the field need rain most, which is called "Spring rain is as expensive as oil". With sufficient and timely rainfall, cereal crops can thrive.

2. In the rainy season when the crops are abundant, it often starts to be obviously rainy in South China, especially in the south. Once cold air meets warm and humid air, it will often form rainy weather 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.

3. With the increase of rainfall after the solar terms in Grain Rain, the humidity in the air gradually increased, and the onset of neuralgia appeared after the solar terms in Grain Rain. At the same time, the weather is getting warmer and outdoor activities are increasing, so the intake of high-protein and high-calorie foods should be reduced.