What is 72?

To be precise, seventy-two is a calendar term. In the traditional calendar, five days is a waiting period, and 365 days a year (an average year) is 73 waiting periods. In order to correspond to the twenty-four solar terms, it is stipulated that three periods are one period (qi) and 72 periods a year. In these 72 phases, each phase has a corresponding phenological phenomenon, which is called "waiting". These "waits" can be roughly divided into two categories: abiotic and biological. Abiotic "waiting" such as "the water begins to dry up", "the ground begins to freeze" and "the rainbow begins to see", while the latter includes animals and plants, such as "Rex provides fish", "Peach begins to blossom", "Ping begins to grow" and "Eagle becomes a dove"

Wait a minute.

As early as the Warring States Period, the first eight solar terms were recorded in Chapter 12 of Lu's Spring and Autumn Annals, including "insects start to shake", "rain starts to fall", "light summer solstice", "east wind melts at the same time", "fish is on the ice", "peach blossoms begin to bloom", "cool breeze arrives", "cicada sings" and "geese return". Later, in the Han Dynasty, "Yi Zhou Shu Shi Xun Jie" had a more detailed annotation on the seventy-two periods. These phenological phenomena are recorded in the almanac of the Northern Wei Dynasty. In the Yuan Dynasty, Wang Zhen's Agricultural Book combined them with the 24 solar terms, and made an annual agricultural operation plan according to the phenological law of meteorological influence. This is the famous "Timing and Living Method Map".

According to the Records of the Book of Rites, Moon Order, Yizhou Book and Shixian Book, the seventy-two phases are briefly introduced as follows (the month here is the lunar month):

Beginning of spring in the first month: the east wind thawed at the beginning (Yanghe Jiansan); Second, the stinger began to vibrate (vibrate, move); The third time, the fish is cold (the sound sign is high). Yang has moved, and the fish are approaching the ice upstream.

Rain: at first, otters sacrificed fish (at this time, the fish was fat, and otters sacrificed first and then ate); Second, wait for Yanbei (from south to north); In the third season, vegetation is sprouting (for the farming season).

February fright: the first peach blooms (yang harmony occurs, and then gradually blooms); Second, Cang Geng Ming (Cang Geng, Huang Li also); Third, the eagle became a pigeon (eagle, stork, too. At this time, the eagle became a pigeon, and in autumn, the pigeon became an eagle again.

Vernal equinox: at the beginning, the mysterious bird arrives (Yan Laiye); The second is thunder (thunder is the voice of yang, but it can't go out to yin, so it is exciting thunder); Third, the electric start (electricity is the light of the yang, the weak time of the yang is invisible, the yang is restrained in the yin, and its light is the hair, so the cloud starts the electricity).

Qingming in March: the beginning, the eternal flower; Second, voles become drivers, peony flowers; This sound is like the yin sound made by quail and mouse. Yang is strong and mouse-like, while Yin is strong and mouse-like. In the third stage, the rainbow begins to appear (rainbow, sound flood, yin and yang meet, pure yin and yang don't meet, if the cloud is thin, the rainbow will see through the rain shadow).

Grain Rain: First life; Second, pigeons are singing and brushing their feathers (flying around, wings patting each other, farming is urgent); Three times Dai Sheng fell on the mulberry (the bird that weaves the web) to show that she is a silkworm girl, so the Japanese girl sang loudly.

Long summer in April: at the beginning, crickets are singing (crickets are also a word); Second, earthworms come out (earthworms, yin and yang); Third, Wang Guasheng (Wang Gua is red and Yang Wang).

Xiaoman: bitter vegetable show at the beginning (the fire is burning and bitter, so bitter vegetable show); Second, the grass dies (genus); Third, wheat will come in autumn (autumn is the period when 100 grains are ripe, so it is wheat autumn).

Mayawn seed: newborn mantis (mantis's common name is knife mantis, saying that the name refuses to accept the axe); Second, the cuckoo begins to sound (living in livestock cutting, Shrike also); Third class, silent tongue (Kuzu also).

Summer: the antlers are dissolved at the beginning (the male animals are also dissolved); Second, the cicada began to sing (cicada also); In the third stage, Pinellia ternata (Pinellia ternata, medicinal name, anode is negative).

Summer heat in June: the weather is early and warm; Second, cricket lives on the wall (also known as promoting weaving, at this time the wings have not yet formed, the former residence wall); Waiting for the third time, the eagle began to be sincere. The eagle feels yin, which is to kill the heart and learn to fight.

Summer: the rotten grass is firefly at the beginning (it is far from Ming, so the quiet class turns to Ming class); Second, the soil is hot and humid (wet, humiliating and humid); Third, when it rains heavily.

Beginning of autumn in July: At the beginning, a cool breeze blew; Second, the white dew falls; Third, cicadas are singing (cicadas are small, green and red).

Summer: In the beginning, eagles sacrificed birds. Dare not taste first, show the newspaper also); Second, heaven and earth began to be quiet (cold); Third, He Naideng (millet is the length of grain, so it should be cooked first).

August Millennium: At the beginning, Hongyan came (from north to south). One day: the sun is red and the sun is red. Second, the return of the mysterious bird (Yan Qu also); Third, birds raise shame (shame, food also.

Shame for the winter moon)

Autumnal Equinox: When the weather starts, the thunder stops (it stops in the sun in February and in the shade in August); Second, the scale insect blank households (blank, sound training. Blank households will be stung by the ploughing holes in their holes); After the third class, the water began to dry up [Mandarin Day: rain at dawn, roots in the sky, and water dried up; When the road is torn down after the rain, the water dries up and becomes a beam. Chen Jiao, Jiao Su also.

Rooted in the sky, even between rooms. Yes, Dan saw it in the East, too.

Chen Jiao saw the September edition, Tiangen saw the end of September, and the end of the book was more than 2 1].

Cold dew in September: the first beauty is a guest (guest, guest also. The first one is the Lord, and the last one is the guest. Second, sparrows turn into clams (flies turn into fish jumps, and yang turns into yin); Three times, the chrysanthemum bloomed yellow flowers (all the flowers were silent, but only this time, its flowers were in the shade, only in autumn).

The first frost: at first, it was a jackal offering sacrifices to animals (Meng Qiuying offering sacrifices to birds, Fang Meng flying small and ferocious, and the jackal offering sacrifices to the beast in the autumn, which was cruel when he walked away); Second, the vegetation is yellow (the yang is gone); In the third stage, stingers are prone to occur (prone to occur, dormant).

Beginning of winter in October: At first, the water began to freeze; Second, the ground began to freeze; In the third stage, pheasants are mostly water (octopus, mussel).

Xiaoxue: At the beginning, the rainbow disappeared (spring wins the shade, so the rainbow is seen; Meng Dong Yin wins Yang, so he hides but doesn't see it); Second, the weather rises and the air drops; In the third stage, it becomes winter when it is blocked (Yang hides in the ground, and it becomes winter when it is closed).

Heavy snow in November: the stork doesn't sing at first (the bird that cries at night, also known as Hao Hanchong, is of yin type, seeking yang, so it doesn't sing); Second, the tiger began to cross (the tiger is yin, feeling a yang and crossing); Third, Li Ting went out (Li Ting, a rush, leaves as small as Pu, roots can be brushed).

Winter solstice: at the beginning, earthworms knot (Yang has not moved, bent down, Yang has moved, looking back, so it bends); Second, the elk horn solution (yin beast is also yang solution); Third, the spring moves (the sun rises in the sky).

Slight cold in December: the first time, goose: I finished my hometown (one year old, the goose stayed four times. For example, all the people living in Yanbei Township in December are wild geese, and so are their parents. The person waiting for Yanbei in the first month is Xiaoyan, the son of Goose. The first one is bigger, and the second one is smaller. This theory comes from Gan Bao in the Jin Dynasty, the theory that Song people thought); Second, the magpie began to build a nest (the magpie knows that it is angry, so it is next year's nest); Third, the pheasant began to sing.

Pheasant beast, feeling the sun and then sound).

Great cold: at first, chickens began to produce milk (chickens, water animals, too, have yang and eggs, so yin has milk); Second, the recruitment of birds is fierce (bird recruitment, eagle genus, extremely murderous, so fierce and quick, good at fighting); Third, Shui Ze's abdomen is firm (the sun's spirit has not arrived, and the east wind has not arrived, so Shui Ze is firm but not firm).