What does the first frost mean in the twenty-four solar terms? Knowledge about the first frost.

1, the first frost, 18 of the 24 solar terms, from 22 to 24 of 10/0 of the Gregorian calendar every year, depending on the sun reaching 2 10 degrees on the longitude of the Yellow River. As the last solar term in autumn, the first frost is the transition from autumn to winter. There is no frost in the first frost, but it means that the weather is cold and there will be first frost on the earth.

2. The ancients in China divided the first frost into three stages: the jackals were sacrificial animals, the vegetation was yellow, and the stinging insects were salty. In the first frost season, most parts of the north have entered the autumn harvest, and even cold-resistant onions can no longer grow. 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.

3. The solar terms in the first frost mainly include the customs of enjoying chrysanthemums, eating persimmons, climbing high and overlooking, and tonic. The first frost season is the turning point of autumn and winter climate, and it is also the transition of the spirit of the sun from being hidden. The key to health care should pay attention to "keeping out the cold outside and clearing heat inside". There is a folk saying that it is better to make up the first frost in winter. In autumn, the spleen and stomach are the foundation of the day after tomorrow. At this time, tonic is appropriate, especially strengthening the spleen and nourishing the stomach to nourish the day after tomorrow. In the first frost season, most parts of China enter the dry season, so we should attach great importance to forest protection and fire prevention.