How to cultivate celery in spring

Celery belongs to Umbelliferae. There are three kinds of water celery, celery and celery, which have similar functions, and it is better to use them as medicine. Parsley has a strong aroma, which is called "medicinal parsley". But it is not the same as cilantro. Celery is rich in protein, carbohydrates, carotene, B vitamins, calcium, phosphorus, iron, sodium, etc., at the same time, it has the effects of calming the liver and clearing heat, dispelling wind and dampness, dispelling swelling, cooling blood and stopping blood, detoxifying and relieving the lungs, invigorating the stomach and blood, clearing intestines and defecation, moistening the lungs and relieving cough, lowering blood pressure, invigorating the brain and sedative. Often eat celery, especially eat celery leaves, to prevent hypertension, arteriosclerosis and so on are very beneficial, and have adjuvant treatment effect.

Celery is cool, sweet and pungent, non-toxic; into the liver, gallbladder, pericardium. The main treatment is clearing heat and eliminating annoyance, calming the liver. Main treatment of hypertension, headache, dizziness, sudden heat and thirst, jaundice, edema, unfavorable heat and astringency in urination, irregular menstruation, red and white belt. There's nothing wrong with it. Gills and other diseases. Celery is cool and slippery, so the spleen and stomach are deficient and cold, and those with slippery intestines should be careful. It has a large amount of gelatinous calcium carbonate, which is easily absorbed by the human body, can supplement the calcium needed by the legs, and can also prevent the edema of the lower body.

Apigenin in celery has antihypertensive effect, which is mainly caused by the reflex of carotid body chemoreceptors. The alkaloid extract of celery has a sedative effect on animals. For heat in the liver channel, hyperactivity of the liver yang, restlessness, vertigo; fever, turbid urine, adverse urination or hematuria; early menstruation; stomach heat vomiting, diet reduction. Modern for hypertension, chyluria and so on.

How to cultivate celery in spring?

The varieties with cold resistance, late bolting, vigorous growth, good quality and suitable for spring cultivation should be selected. Such as big-leaf celery, breast stalk celery, glass crispy celery, Jinnan celery, Italian celery and so on. Celery seedlings raised in greenhouse can be sown in stages from the end of January to the beginning of March. For those who sow and raise seedlings in the open field, it is appropriate to sow in sunny days from the end of February to the middle of April. Sowing seeds in this period, the temperature is low, soaking seeds before sowing, and then sprouting under the condition of 15 ℃ ~ 20 ℃. After sowing, the seedling bed should also be covered with film or a small arch shed, and the sunshade net should be covered at night, so that the bed before emergence can be on the high side to promote fast emergence. After emergence, pay attention to ventilation and cooling during the day (no more than 25 ℃) to prevent the occurrence of "tall seedlings" and diseases, preferably no less than 8 ℃ at night. This is conducive to the cultivation of strong seedlings, but also can postpone the vernalization stage, reduce or delay the early bolting of celery. No matter raising seedlings or direct seeding in greenhouse and open field, fertilizer and water management should be strengthened depending on the situation of seedlings in sunny days. Planting and managing direct sowing should be done twice after seedling emergence and during the period of 1 or 2 true leaves in order to prevent seedlings from overgrowing due to density. For seedlings raised in greenhouse, the ground temperature of 10 cm in open field was stable from mid-March to late April, and it was planted when it was more than 5 ℃. Direct seeding in open field from late February to mid-April did not transplant, and seedlings were fixed from early May to early June. The row spacing of planted and fixed seedlings was 10 cm × 10 cm. Large seedlings were selected for graded planting, and pier water was poured after planting. Most of the nursery beds are cultivated on the "pedestal". 35000 ~ 40 000 piers are planted every 666.7 square meters. The growing period of harvesting spring celery is a process from low temperature to high temperature, which is easy to make the plant bolting through vernalization. Therefore, celery must be harvested and listed in time before bolting, so as not to reduce the quality. Therefore, its growing period is shorter than that of autumn and winter celery, and it is generally harvested and listed from May to late June.