What is the relationship between the 24 solar terms and agricultural production?

In the twenty-four solar terms, changes in climate and phenology are reflected, including agricultural activities.

Twenty-four solar terms were formed in Qin and Han Dynasties.

Therefore, in China's traditional agriculture, agricultural activities are basically guided by the requirements of the 24 solar terms, its meaning and changes.

The origin of the twenty-four solar terms

Twenty-four solar terms originated in the Yellow River Basin.

As early as the Spring and Autumn Period, four solar terms were set, namely, mid-spring, mid-summer, mid-autumn and mid-winter.

After continuous improvement and perfection, by the Qin and Han Dynasties, the 24 solar terms had been completely established.

In BC 104, the taichu calendar written by Deng Ping officially set 24 solar terms in the calendar, and defined the astronomical position of the 24 solar terms.

Seven-character poem of twenty-four solar terms

The earth goes around the sun, and it takes a year to complete a circle.

A year is divided into December, and the 24 solar terms are closely linked.

According to the Gregorian calendar, these two gases will not change every month.

In the first half of the year, it was six gan and one, and in the second half, it was eight gan and three.

These are festivals, and the difference is only one or two days.

There are twenty-four sections in sequence, and the following formula is in mind.

A slight cold in January was followed by a severe cold, and it rained in early spring in February.

March of vernal equinox, April of Qingming Grain Rain.

May is Changxia and Xiaoman, and June is the summer solstice company.

It is hot in July and hot in summer, and it is hot in beginning of autumn in August.

In September, the Millennium meets the autumnal equinox, and the first frost and cold dew are all in October.

There is a light snow in 1 1 month in beginning of winter, and a heavy snow in winter solstice to welcome the New Year.

Grasp the season and busy production, sow and harvest in time to ensure a bumper harvest.