What is the solar term after the cold dew in the twenty-four solar terms?

The first frost is the last solar term in late autumn, and the temperature reaches the lowest temperature in autumn at this moment. At this time, the first frost appeared in some places, and the origin of the name first frost was also caused by the current climate. The condensed frost flower is a symbol. What do you know about the first frost? Now let's have a look!

What is the solar term after the cold dew in the twenty-four solar terms?

After the cold dew is the first frost solar term. The first frost, the first 18 of the 24 solar terms, is also the last solar term in autumn, just before beginning of winter. The first frost says that the weather is getting colder and colder, the temperature drops below 0℃, dew condenses into frost, and water vapor in the air condenses into tiny ice needles or frost flowers on the ground or plants. The ancients in China divided the first frost into three stages: jackals sacrificing animals, yellow vegetation and stinging insects. In the first frost season, most parts of the north have entered the autumn harvest, and even cold-resistant onions can't grow again. In the south, it is the peak season of "Sanqiu". Only single-season hybrid rice and late rice are harvested, and early-season wheat and early-season rape are planted. Picking cotton, pulling cotton stalks, ploughing and soil preparation.

Agricultural activities during the first frost

After the first frost solar terms, cold air activities become more frequent, and the temperature difference between day and night becomes larger. The "first frost" solar term has nothing to do with "first frost", which does not mean that entering the first frost solar term will lead to "first frost". In fact, "frost" does not fall from the sky, but the water vapor on the ground condenses when it meets cold air due to temperature difference changes. There is no concept of "first frost" in meteorology. Generally speaking, the first frost in autumn is called "first frost" or "first frost", and the last frost in spring is called "late frost" or "final frost". The interval from the last frost to the first frost is a frost-free period. In the first frost season, most parts of the north have been harvested in autumn. Even cold-resistant onions can't grow any longer, because "the first frost can't support onions, and the longer they grow, the more empty they are." In the south, it is the peak season of "Sanqiu". Only single-season hybrid rice and late rice are harvested, and early-season wheat and early-season rape are planted. Picking cotton, pulling cotton stalks, ploughing and soil preparation.

Traditional customs in the first frost

1, sending taro ghosts, before the first frost, there was a custom of "sending taro ghosts" in Gaoming, Guangdong. In the first frost season, people will build Hanoi Tower with tiles, put dry wood in the tower and light it until the tiles are red, then push down Hanoi Tower, heat taro with red tiles, which is called "taro pot" locally, and finally throw the tiles outside the village, which is called "taro to send ghosts". In this way, people are eager to meet good luck.

2. Climbing high and overlooking, the mountains and rivers in autumn have fresh air, and there are less floating dust and pollutants in the atmosphere. Looking at the top in the first frost season can not only make the function of the lungs comfortable, but also make people feel relaxed and relaxed.

3, sweeping graves to worship ancestors, "Qing Tongli" cloud: "At the age of, the first frost festival of cold food, the grave-sweeping, the period of vegetarian clothing, the grass cutter with wine, Zhou Yi closed the tree, broken, so it is called sweeping the grave." And spread to this day.