Frost Descent is one of the 24 solar terms and the last solar term before the end of autumn, so Frost Descent is the connecting solar term between autumn and winter. What is the meaning of the Frost Descent solar term? What are the impacts of the Frost Descent solar term? In the ninth month of the lunar calendar, ancient people would happily climb mountains to express their emotions, drink chrysanthemum wine, and enjoy the beautiful scenery of autumn. Mr. Shui Mo has brought you relevant content about the ninth month of the lunar calendar in 2018. Let’s take a look.The meaning of the Frost Descent solar term:Frost is one of the 24 solar terms in the lunar calendar. When this solar term comes, the weather gradually becomes colder and frost begins to appear. Frost's Descent usually falls on October 23rd of the Gregorian calendar every year. At this time, the first frost appeared in the Yellow River basin of China, and most areas were busy sowing crops such as wheat.Frost Descent occurs around October 23rd of the Gregorian calendar every year, when the sun reaches 210 degrees of the ecliptic longitude. Frost means the weather is getting colder and the dew condenses into frost. "Collected Explanations of the 72 Seasonal Changes" states: "In the middle of September, the air is cold and condensed, and the dew turns into frost." At this time, white frost had appeared in the Yellow River Basin in my country. Silver ice crystals were shining brightly on the thousands of miles of fertile fields. The leaves were turning yellow and falling. The ancient book “Explanation of the Twenty-Four Solar Terms” says: “When the weather becomes cold, frost falls, and the yin begins to condense.” It can be seen that “frost falls” means that the weather is gradually getting colder and frost begins to fall. In meteorology, the first frost in autumn is generally called "early frost" or "first frost", while the last frost in spring is called "late frost" or "final frost". The period from the last frost to the first frost is the frost-free period. Some people also call the early frost "chrysanthemum frost", because chrysanthemums are in full bloom at this time. Su Shi, a great writer in the Northern Song Dynasty, wrote a poem: "Thousands of trees are swept into yellow, only the lotus is fragrant alone." In ancient my country, Frost Descent was divided into three stages: "In the first stage, jackals offer sacrifices to animals; in the second stage, grass and trees turn yellow and fall; in the third stage, stinging insects hang their heads in preparation for the winter." This means that after Frost Descent, jackals and other animals begin to store food for the winter; the grass and trees turn yellow and leaves fall; hibernating stinging insects hang their heads in preparation for the winter in caves. The impact of the Frost Descent solar term on crops:Most parts of the north are finishing up the autumn harvest. Even the cold-resistant onions can no longer grow because "if you don't grow onions after frost, the more they grow, the more empty they will be." In the south, it is the busy season of the "three autumns". Single-season hybrid rice and late rice are being harvested, early wheat and rapeseed are being planted, cotton is being picked, cotton stalks are being pulled out, and the land is being plowed and prepared. "Pull out all the straw on the ground to reduce insects and diseases next year." After the harvest, the straw and root stubble must be collected in time because many overwintering insect eggs and pathogens are hidden there. Cabbage in North China is about to be harvested, and post-harvest management should be strengthened. During the Frost Descent season, most parts of my country enter the dry season, and we must attach great importance to forest protection and fire prevention.Frost is also a good time for sheep breeding in the Yellow River and Huaihe River basins. There is a folk proverb that goes, "Breeding in Frost and milking in Qingming, so that the lambs are born when the grass comes up." Ewes usually go into estrus in autumn and winter, and usually accept mating from rams for about 30 hours. Like breeding in the south when White Dew, the weather is warm when lambs are born, the grass is fresh, the ewes are well-nourished, and have enough milk to feed the lambs well. |
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