Which of the 24 solar terms in a year grows wheat?

Twenty-four solar terms, a supplementary calendar used to guide agricultural production in ancient times, are the laws formed by the wisdom observation and summary of ancient people in China. Nowadays, there are still many agricultural proverbs related to the 24 solar terms among the people. Then let's find out which solar terms are most suitable for growing wheat in a year.

Q: Which solar term is most suitable for growing wheat in a year? A: There is an old agricultural proverb: the white dew is early, the cold dew is late, and the autumn equinox is the time to plant wheat.

The autumnal equinox is the sixteenth solar term in the twenty-four solar terms of the lunar calendar, usually on September 22nd or 23rd every year. In the autumn equinox, most parts of China have entered a cool autumn. The cold air from the south meets the gradually decaying warm and humid air, which causes repeated precipitation and the temperature drops again and again.

In northern China, there is an agricultural proverb that says: "The white dew is early, the cold dew is late, and it is the right time to plant wheat in the autumn equinox." Proverbs clearly stipulate the sowing time of winter wheat in this area. Winter wheat is sown at this time and will mature in the next summer. The whole growth period is generally 190-2 10 days.

The rapid cooling in autumn makes the autumn harvest, autumn ploughing and autumn planting "Sanqiu" particularly nervous. 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.

Conclusion: Winter wheat is generally planted after the autumnal equinox, but the specific sowing date varies from place to place. In warm areas, wheat is planted relatively late. For the area north of the Yellow River basin, it is "the white dew is early, the cold dew is late, and the autumn equinox is the time to plant wheat"; For the area south of the Yellow River Basin, it is "the autumnal equinox is early, the first frost is late, and it is just the right time to plant wheat with cold dew".

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