The vernal equinox of the 24 solar terms, busy with spring ploughing.

Spring, a season of rebirth, everything begins to be reborn, and people are also starting new dreams; Farmers' uncles are also very busy, sowing in spring and harvesting in autumn. Then Lao Huang Li will explain to you the knowledge about busy spring ploughing at the vernal equinox in the 24 solar terms. Come and have a look with me!

Plow before spring sowing

In the northern areas with little rain in spring, we should pay close attention to spring irrigation, water saving and jointing fertilization, and pay attention to preventing late frost and freezing injury; South China still needs to continue to do a good job in drainage and flood prevention. Early rice seedling raising in Jiangnan and Jianghuai areas has started, and the weather changes frequently in early spring. Attention should be paid to soaking seeds to accelerate germination when cold air comes, and sowing in sunny days when cold air ends. The experience of the masses says, "A cold tail warms the head, so there is no need to worry about seedlings." According to the weather conditions, strive for 3-5 sunny days after sowing to ensure that all seedlings are sown at one time. Spring tea has begun to sprout, so it is necessary to apply quick-acting fertilizer to control pests and diseases in time and strive for high yield and high quality tea.

"February is the vernal equinox, and planting trees and fertilizing farmland is deep." The vernal equinox is also a good opportunity to plant trees. In ancient poems, there is a saying that "Niu Jiao girls started planting trees in the middle of the night, and it was the vernal equinox in the Ming Dynasty". In the hot busy farming season, we should continue to use our hands to green the mountains and rivers of the motherland and beautify our environment.

After the vernal equinox, the overwintering crops in most parts of southern China entered the spring growth stage. The temperature in most parts of the south continues to rise, but generally it doesn't rain as fast as the vernal equinox. In late March, the average temperature in northern South China is mostly 13℃ to 15℃, and in southern South China it is mostly 15℃ to 16℃. Most of the plateau has been melted by snow, and the ten-day average temperature is about 5℃ to 10℃. Most areas in South China, such as river valleys, have the highest temperature, with an average of 18℃ to 20℃. In the south, except for the marginal mountainous areas, the average daily temperature rose steadily to above 12℃ in 1978, which is beneficial to planting crops such as rice and corn, and is also very suitable for afforestation.

However, before and after the vernal equinox, there is often a strong cold air intrusion in South China, and the temperature drops obviously, 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.

As the saying goes, "The spring equinox begins with wheat, and the fat and water should follow". A spring rain was warm. After the spring rain, I was busy plowing. The busy farming season in spring is about to begin, and spring management, spring ploughing and spring planting are about to enter a busy stage. After the vernal equinox, overwintering crops enter the growth period, so field management should be strengthened. As the temperature rises rapidly and the water demand is relatively large, farmers should strengthen water storage and moisture conservation. "The spring equinox starts with wheat, and the moment is worth a thousand dollars."