What solar term is Qingming?

Tomb-Sweeping Day Qi introduced what solar terms are clear.

Qingming was originally one of the 24 solar terms in our calendar. It appears about 15 days after the vernal equinox, about April 5 in the solar calendar and March in the lunar calendar. This is the late spring season when spring is as deep as the sea. Green grass is everywhere, swallows call warblers to fly, and everything is full of vitality. The weather is clear and the air is fresh, so it is called Qingming. Tomb-Sweeping Day, also known as Walking Festival, Smart Festival, No Smoking Festival, etc. , is a traditional festival gradually formed by people holding various celebrations and commemorative activities in Tomb-Sweeping Day.

Qingming phenology

Qingming is a solar term representing phenology, which means sunny weather and lush vegetation. At this time, the temperature is getting warmer, the rainfall is increasing, the spring is bright, the willows are drooping, and the green grass is like seedlings. There is a vibrant scene everywhere in urban and rural areas. But Qingming, as a solar term with a unified time sequence and festivals, came later.

Solar terms are signs of phenological changes and seasonal order, and traditional festivals contain certain customs and commemorative cultural matters. Both of them are independent, but they are also related.

Tomb-Sweeping Day Qi comes from the theory of "Eight Winds" in March of the lunar calendar every year. Eight winds were the earliest method to distinguish seasons and climatic winds in ancient China. China has been based on agriculture since ancient times. Tomb-Sweeping Day has distinct characteristics of agricultural culture, which itself reflects the law of life in agricultural society. In the long-term agricultural production, the ancients obtained relevant astronomical knowledge by constantly exploring the changing laws of climate in different seasons. At this time, after the severe winter, the climate is pleasant, which has become a good opportunity for people to carry out outdoor activities. It is also a good time to sow in spring, so Qingming is an important solar term in ancient agricultural production, which is closely related to agricultural production.

Qingming weather

Qingming, a solar term, means that the temperature gets warmer, plants sprout, and nature presents a scene of Qingming. It often rains at this time in Guangdong.

Tomb-Sweeping Day gas, the sun shines directly on the sea in the south of China. At this time, the temperature difference between the north and the south of the province decreased. For example, compared with Guangzhou, Nanxiong, the northernmost city, the average temperature in Guangzhou is 4.8℃ higher than Nanxiong in spring, and only 1.5℃ higher than Nanxiong during Qingming period. The average temperature in Tomb-Sweeping Day is about 20 degrees Celsius or above. Although the temperature is getting warmer at this time, the cold air may still go south until it is full, so as the saying goes, "If you don't eat May Zongzi, you can't send cold clothes."

After Tomb-Sweeping Day, Guangdong will enter the rainy season, and rainfall will increase in all parts of the province, especially in central and northern areas, Xinyi and Yangjiang. Although western Guangdong is still a rainy area at this time, the rainfall has also increased slightly, which is helpful to alleviate the drought. However, the sunny weather around Tomb-Sweeping Day is very beneficial to the growth of tropical crops. There is an agricultural proverb in Guangdong, "It will rain in Grain Rain". It is said that tropical crops such as litchi and longan are in the development stage of flowering and pollination around Tomb-Sweeping Day. If there is enough water in the early stage, the number of flowers will increase and the vitality of pollen will be greatly enhanced. As long as irrigation is proper, it will certainly lay a solid foundation for a bumper harvest.

Qingming farming arrangement

As soon as Tomb-Sweeping Day arrived, the temperature rose. At this time, the temperature has risen to 12-C in most parts of China, which is a good season for spring ploughing and sowing.

Therefore, there is an agricultural proverb that "before and after Qingming, point melons and plant beans" and "planting trees is not as good as Qingming".

In the north of this season, there is still cold air invading from time to time. In field management, we should pay attention to prevent late frost, otherwise it will cause serious consequences of rotten seedlings in middle rice and dead seedlings in early rice. Therefore, rice planting and transplanting should avoid cold tail and warm head. In the northwest plateau, due to the cold winter and insufficient forage, the resistance of livestock decreases, so it is necessary to guard against the harm of strong cooling weather to old, weak and young livestock after spring.

"During the Qingming Festival, the wheat grows only in the festival". The wheat in the south of Huanghuai is about to start heading, the rape has blossomed, and the wheat in the northeast and northwest regions has also entered the jointing stage. In order to obtain high yield, fertilizer and water management and pest control must be done well in the later stage. Early planting in the north and early planting in mid-season rice in the south of the Yangtze River are both suitable seasons for mass sowing. We should seize the opportunity, seize the sunny day and sow early. "Lihua Qing". At this time, many kinds of fruit trees enter the flowering stage, and it is necessary to focus on artificial pollination to improve the fruit setting rate. Early rice planting in South China should be cleaned up and fertilized in time. Corn, sorghum and cotton will also be planted everywhere.

"Before tomorrow's tea, there will be two buds", and the new buds of tea trees will grow vigorously, so attention should be paid to pest control; Famous tea producing areas are also being mined one after another, and strict scientific management should be carried out to ensure the yield and quality.

During the Qingming period, rainfall increased, especially in the south of the Yangtze River. Although abundant rainfall can meet the needs of the growth and development of various crops, if there is too much precipitation, it will induce wet damage and cause damage to crops, so we should also strengthen prevention.