When is the vernal equinox? What should we pay attention to in vernal equinox health care?
When is the vernal equinox?
Equinox time 20 18: 2010:15: 24 March 2 18, February 5th 2018.
2. What does the vernal equinox mean?
English translation of vernal equinox: theSpringEquinox
Minutes mean equal parts, and vernal equinox means equal parts day and night.
At the vernal equinox, fingers fight. The meridian of the sun is 0 degrees. The sun is above the equator at the vernal equinox. This is the 90-day vernal equinox of spring. On this day, the northern and southern hemispheres are equal in day and night, so it is called the vernal equinox. After this day, the direct position of the sun moves northward, and the days in the northern hemisphere are long and the nights are short. So the vernal equinox is the beginning of spring in the northern hemisphere. Overwintering crops in most parts of China have entered the spring growth stage. Agricultural proverbs in various places include: "The spring equinox comes first, and rice competes for money" (Guangdong), "The spring equinox never stops raining, but the summer equinox never stops burning" (Sichuan), "When it rains, every family is busy, planting melons and beans first, then transplanting them" (Hubei), "Planting vegetables at the spring equinox, picking melons in summer" (Hunan) and "Planting beans at the spring equinox, and planting them at the autumn equinox.
Three seasons of vernal equinox
The mysterious (yuan) bird arrives: Yan Laiye.
Thunder is the sound: thunder is the sound of yang, and it can't go out in the shade, so thunder is exciting.
First electricity: electricity is the light of the yang, the light is invisible when the yang is weak, and the yang is restrained in the yin. Its light is hair, so it begins to lightning.
Introduction of vernal equinox
The vernal equinox is one of the solar terms reflecting the changes of the four seasons. In ancient China, beginning of spring, Changxia, beginning of autumn and beginning of winter were used to indicate the beginning of the four seasons. The vernal equinox, summer solstice, autumn equinox and winter solstice are in the middle of each season. On the vernal equinox, the sun shines directly on the equator, and the time between day and night is equal all over the earth. Therefore, the ancient vernal equinox and autumnal equinox are also called "equinox", and there is a folk proverb that "vernal equinox and autumnal equinox are equally divided day and night". After the vernal equinox, the overwintering crops in most parts of China entered the spring growth stage. There is an agricultural proverb in Central China, "Wheat starts at the vernal equinox, and every moment is worth a thousand dollars". The temperature in all parts of our province continues to rise, but it is generally not as fast as the spring equinox. In late March, the average temperature in the north of the basin was mostly 13℃ to 15℃, and in the south of the basin was mostly 15℃ to 16℃. Most of the plateau has been melted by snow, and the ten-day average temperature is about 5℃ to 10℃. The temperature in the valley areas such as Jinsha River and Anning River in the southwest of our province is the highest, with an average of 18℃ to 20℃. Except in marginal mountainous areas, the average daily temperature in the basin has steadily increased to above 65438 02℃ in the past seven or eight years, which is beneficial to planting crops such as rice and corn, and is also very suitable for afforestation. However, before and after the vernal equinox, strong cold air often invades the basin, and the temperature drops obviously, and the lowest temperature can be as low as 5℃. Sometimes a small stream of cold air comes one after another, forming a low temperature and rainy weather that lasts for several days, which is not good for agricultural production. According to this feature, we should make full use of the weather forecast, grasp the cold tail and warm head, and sow in time.
3. What do you eat for health at the vernal equinox?
The vernal equinox is one of the 24 solar terms. The arrival of the vernal equinox shows that this is the real spring. So, what should you eat for health at the vernal equinox? Spring equinox custom eats spring vegetables, and seasonal vegetables are the first choice for health care.
1, shepherd's purse
Eating spring vegetables is the custom of the vernal equinox. Scrambled eggs by digging shepherd's purse can remove the dirty air hidden by cats in winter and avoid spring sleep. Vegetables are the first choice for calcium supplementation in spring, and shepherd's purse is the only one. Shepherd's purse shepherd's purse is rich in nutrition, with high contents of vitamin C, carotenoids and various minerals. In particular, its calcium content is nearly three times that of milk of the same quality.
Shepherd's purse is often made into steamed buns or jiaozi. Stir-fried shepherd's purse, cold sauce or soup can all be mouth-watering delicacies. In addition, shepherd's purse can also be used to make soup and make delicious shepherd's purse porridge.
Choose shepherd's purse without flowers, which is tender and delicious; The root of shepherd's purse has high medicinal value, so it is not suitable to remove the root when eating; Shepherd's purse shepherd's purse should not be cooked for a long time. Too long will destroy its nutrients and turn yellow. When cooking shepherd's purse, don't add garlic, ginger and cooking wine to taste it, so as not to destroy its own fragrance.
2. Toona sinensis
Toona sinensis in the spring equinox season is fragrant, crisp and delicious, with the best taste and nutrition. Since ancient times, there has been a saying in China that "there is no miscellaneous disease in eating Toona sinensis". Chinese medicine believes that Toona sinensis is bitter in taste and cold in nature, and has the effects of clearing away heat and toxic materials, invigorating stomach and regulating qi; It tastes fragrant and can play the role of invigorating spleen and appetizing. However, it is early to eat Toona sinensis in spring. After mid-April, the nitrate content in Toona sinensis buds in most areas exceeded the standards of the World Health Organization and the Food and Agriculture Organization of the United Nations. That is to say, the more tender the Toona sinensis buds are, the less nitrate will be produced, and the less nitrite will be produced during storage in the future.
Fresh Toona sinensis buds picked directly from trees can be eaten directly as vegetables. But if you buy Toona sinensis from the market, you must blanch it before eating it. Blanching with boiling water for about 1 min can remove more than two thirds of nitrite and nitrate, and can also preserve the green color of Toona sinensis.
Step 3: bean sprouts
Spring is the season of vitamin B2 deficiency. Eating soybean sprouts in spring can effectively prevent vitamin B2 deficiency. Eating soybean sprouts regularly has the functions of strengthening the brain, resisting fatigue and resisting cancer. During the germination of soybean, the substance causing flatulence in soybean is decomposed. Some nutrients are also more easily absorbed by the human body.
Most rootless bean sprouts sold in the market are promoted by hormones and fertilizers, and rootless bean sprouts are one of the vegetables prohibited from being sold and eaten by the national food hygiene management department. Normal mung bean sprouts are slightly yellow, not too thick, with moderate moisture and no odor; The abnormal color is white, the beans are blue, the buds are thicker, the water is more, and there is a smell of fertilizer. In addition, when buying mung bean sprouts, it is best to choose 5 ~ 6 cm long. When frying bean sprouts, use a hot pot to fry them quickly, so that vitamin C is less damaged. Mung bean sprouts are cold, so cook with a little ginger to neutralize their coldness. Adding a little vinegar to stir-fry mung bean sprouts can not only prevent the loss of vitamin B 1, but also enhance the weight loss effect.
4. Lettuce; lettuce
Spring is also a season of high incidence of allergic diseases. Studies have found that a substance in lettuce can resist rhinitis caused by spring allergy and alleviate the pain of allergic patients. Eating lettuce often can enhance the secretion of gastric juice and digestive juice and enhance the secretion of bile. The potassium in lettuce is 27 times that of sodium, which is beneficial to diuresis and water balance, and is of great benefit to patients with hypertension and heart disease.
Lettuce and kidney beans are an excellent match for calcium supplementation. Kidney bean contains calcium 100 g 135 mg, and lettuce root contains an inulin, which can strengthen the absorption of calcium. Lettuce and kidney beans are suitable for cold salad, which is not only refreshing, but also has less nutritional loss.
Lettuce should not be too salty, and it is not advisable to put too much salt when cooking, otherwise it will make nutrients extravasate and affect the taste. Lettuce should not be cooked or stored in copper utensils, which will destroy the ascorbic acid contained in it and reduce the nutritional content.
5, leeks
There are leeks worth eating at the vernal equinox. As the saying goes, Chinese chives have the saying that "spring vegetables smell sweet and Natsuna stinks". At this time, the leeks are tender and delicious. The content of carotene and vitamin C in leek is high, and the content of folic acid and potassium is also good. Moreover, leek contains a lot of dietary fiber, which can promote gastrointestinal peristalsis and prevent constipation. In addition, the special spicy taste of leek comes from its isothiocyanate, which has the effect of inhibiting a variety of bacteria. When buying spring leeks, pay attention to the narrow leaves and purple roots, while the broad leaves are light green and have a light fragrance, so you can buy them according to your own taste.
The leek in spring is tender, and it can't stand the fire and oil. Pay attention to the heat and time when cooking, and don't overcook it. Note that leeks are called "intestinal grass". Don't eat more for people with indigestion or gastrointestinal diseases.
6. Spring bamboo shoots
Bamboo shoots are nutritious foods with high protein, low fat, low starch and crude cellulose. Spring bamboo shoots have the effects of "benefiting nine orifices, dredging blood vessels, resolving phlegm and promoting fluid production, promoting digestion and reducing swelling". Modern medicine has confirmed that eating bamboo shoots has the effects of nourishing yin and nourishing blood, resolving phlegm and promoting digestion, facilitating defecation and improving eyesight. Insoluble oxalic acid in bamboo shoots can cause allergic rhinitis, dermatitis and urticaria. When frying other foods with bamboo shoots, first put the bamboo shoots in salt water and cook for 10 minute, then remove the astringency and oxalic acid. People with allergies should not eat bamboo shoots and seafood together.
It should be reminded that not everyone is suitable for eating bamboo shoots. Gastrointestinal dysfunction such as gastric ulcer, people who have recovered from a serious illness have weak digestive function, and people with allergic rhinitis, asthma, urticaria and other allergies. Children under 4 years old, women who have just given birth, the elderly and patients with stones are not suitable for eating bamboo shoots.