How did Xiaoman solar terms come from?

Everyone knows that Xiaoman is the second solar term in summer. In May, the arrival of Xiaoman solar terms also means that precipitation will gradually increase. Xiaoman solar term is one of the 24 solar terms, so do you know the origin of Xiaoman solar term? What's the point?

The origin of solar terms in Xiao Man

Twenty-four solar terms: "In mid-April, things are small and full." At this time, the seeds of summer sowing crops such as wheat in the north have begun to be full, but they are not yet mature, which is about the late stage of milk ripening, so it is called Xiaoman. Xiaoman has two definitions of "full". One is to describe the fullness of crops, and the other is to describe the situation of rain surplus and shortage.

When Xiaoman arrives, we should pay close attention to the prevention and control of pests and diseases in wheat fields to prevent dry and hot winds and sudden thunderstorms and hail attacks. In the south, we should pay close attention to top dressing and weeding of rice, promote weed isolation, and harvest and dry summer grain in sunny days. After Xiaoman, high temperature weather above 35℃ began to appear from the south of the Yellow River to the middle and lower reaches of the Yangtze River, and relevant departments and units paid attention to heatstroke prevention and cooling. Disaster prevention in the "villain" season.

In ancient China, Xiaoman was divided into three stages: "Bitter vegetable show"; Second, waiting for grass to die; When the autumn wheat arrives. " In other words, in Xiaoman solar terms, bitter vegetables have flourished; Some grass with soft branches and like shade began to die in the strong sunlight; At this time, the wheat began to mature.