The origin of cold dew solar term the dew will condense when the climate turns cool
ancient science and technology were underdeveloped, so agriculture depended on the climate very much. Therefore, observing the change of weather has become a very important thing. It has also summarized a lot of experience. Today, it still seems very valuable and has been used in various fields. This article will take a look at the source of arthrosis, so that we can better understand the characteristics of seasons.
the origin of the cold dew solar term
this solar term comes from China's ancient calendar and belongs to one of the twenty-four solar terms. It means that the climate becomes cold at this festival. You can see the dew condensation on the plants in the morning. The collection of 72 seasons in the lunar calendar · cold dew says that "cold dew Festival: September Festival. The dew is cold and will condense." the ancients also divided it into three seasons: "first, the goose guests; second, the bird into the flood is a clam; third, the chrysanthemum has yellow flowers." it says that the goose moved south in a line or herringbone formation; It was cold in late autumn, and the birds disappeared. The ancients saw a lot of clams suddenly appear on the beach, and the stripes and colors of the shells were very similar to those of birds, so they thought they were birds; At this time, chrysanthemums have been widely open. It vividly depicts the phenological characteristics of late autumn. You can adjust agricultural production in time according to the changes.
what are the climatic characteristics of this season
China has a vast territory, and each place presents different characteristics. In most parts of the south, temperatures continued to drop. The daily average temperature in South China is less than 20 ℃, even in the coastal areas of the Yangtze River, it is difficult for the temperature to rise above 30 ℃, while the minimum temperature can fall below 10 ℃. Most of the Northwest Plateau is below 10 ℃, which belongs to the ranks of winter.
what kind of dishes are suitable for planting at this time
1. Chinese cabbage: because the cycle is short and easy to harvest, it can be sown before and after the cold dew. There are many kinds of Chinese cabbage in the north, including Shandong Jiaozhou Chinese cabbage, Beijing Qingbai Chinese cabbage, Tianjin hemp leaf Chinese cabbage, Northeast Chinese cabbage, Yutian Chinese cabbage, Shanxi Yangcheng rough edge, etc., which can be planted according to local conditions.
2. Spinach: this kind of vegetable is nutritious and adaptable. It is an annual herb. The plant is up to 1m high. Its root is conical, reddish, less white, halberd shaped to ovate, bright green, whole or with a few dentate lobes. It is a very popular plant.
3. Garlic: during the period from the end of white dew to cold dew, because its suitable growth temperature is about 17 ℃, that is, from the end of September to the beginning of October, it can be sown and put on the market in a short time.https://www.dailyq-a.com/Culture/33473.html
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