March is the vernal equinox. What's the next proverb?

"March is the vernal equinox, and soil preparation is the key." This sentence comes from the agricultural proverb of the twenty-four solar terms. ?

Sting marks the beginning of mid-spring season. Everything is shocked, shocked as thunder. This is an escape sting.

In the past, animals hid in the soil in winter without drinking or eating, which was called "sting"; On the day of "Sting Festival", the spring thunder in the sky awakens the secluded animals, which is called "shock". Therefore, insects wake up when they are startled, the weather turns warmer, and there are spring thunder gradually, and most areas of China enter the spring ploughing season. In ancient times, it was divided into three stages: "a peach will begin to blossom;" Second, wait for the sound of Cang Geng (Huang Li); Three waiting eagles turned into pigeons. " The flower letter represented by the three stages of fright is: "peach blossom, apricot blossom and rose."

After the vernal equinox, the overwintering crops in most parts of China entered the spring growth stage. There is an agricultural proverb in Central China, "Wheat starts at the vernal equinox, and every moment is worth a thousand dollars". In late March, the average temperature in the north of the basin was mostly 13℃ to 15℃, and in the south of the basin was mostly 15℃ to 16℃. Except for the mountainous areas on the edge of the basin, the average daily temperature rose steadily to above 65438 02℃ in the past seven or eight years, which was beneficial to the sowing and planting of rice, corn and other crops.

However, before and after the vernal equinox, strong cold air often invades the basin, and the temperature drops obviously, and the lowest temperature can be as low as 5℃. Sometimes a small stream of cold air comes one after another, forming a low temperature and rainy weather that lasts for several days, which is not good for agricultural production. According to this feature, we should make full use of the weather forecast, grasp the cold tail and warm head, and sow in time.