Which solar term is the autumnal equinox?

Less thunder is the solar term of the autumn equinox.

The autumnal equinox is one of the 24 solar terms, usually on September 22nd or 23rd every year. The three stages of the autumnal equinox are: when the thunder stops, when the insects sting, and when the water is dry.

The "thunder began to stop" here refers to the beginning of autumn, and thunder no longer appears; "Insect stinging empty shell households" means that insects begin to prepare for hibernation, and they will seal the hole with soil or leaves to prevent cold weather attacks; "Water begins to dry up" means that the weather is dry in autumn, and the water evaporates quickly, which leads to the decrease of water in rivers and lakes.

There are three stages in the autumnal equinox: "thunder stops, insects sting, and water dries up." Wait for the thunder to stop. The autumnal equinox is the key node of the transformation of Yin and Yang in a year. Ray is the representative, and the beginning of ray means that it begins to decline and gradually occupies a dominant position. Second, wait for the empty-shell households of stinging insects.

As the weather began to get cold, dormant insects began to seal their caves with soil to resist the cold. Wait for the water to dry. In autumn, the precipitation in the northern region began to decrease obviously. After the autumnal equinox, the southern region began to gradually enter the rainy season after welcoming the last wave of typhoon rainfall.

rural activity

The characteristics of rapid cooling in autumn make "Sanqiu solar terms for health" particularly tense in the busy autumn harvest, autumn ploughing and autumn planting. The autumnal equinox is a good time to harvest cotton and tobacco leaves from green to yellow. Winter wheat has been planted in North China, and the Yangtze River basin and vast areas in the south are busy harvesting late rice and ploughing the land to prepare for rape sowing.

Drought and lack of rainfall or continuous rainfall in autumn equinox are the main unfavorable factors affecting the normal operation of Sanqiu, especially the continuous rainfall will make the upcoming crops lodging, mildewing or sprouting, resulting in serious losses.

"Sanqiu" is a great help, and the word "early" is the key. Timely harvest of crops in autumn can avoid the harm of first frost and continuous rain, and timely sowing of crops in winter can make full use of heat resources before winter, cultivate strong seedlings to survive the winter safely, and lay the foundation for high yield in the coming year.