Planting time of Artemisia annua L.

Chrysanthemum chrysanthemum is one of the green leafy vegetables we often eat, which is very nutritious and healthy. as we all know, spinach is a vegetable with high calcium content, but chrysanthemum chrysanthemum contains no less calcium than spinach, and it is easier to absorb. As the benefits of chrysanthemum are known, more and more people like to grow nutritious and delicious chrysanthemum at home, so when is the best time to plant chrysanthemum?

Planting time of Artemisia annua L.

The whole plant of Artemisia annua has a special fragrance and a unique repellent effect on diseases and insect pests, so it is an ideal pollution-free vegetable with little pesticide spraying. It is a semi-cold-tolerant vegetable, which is beneficial to its growth when the soil is cool and mild, and the soil relative humidity is maintained at 70% Murray and 80%. Under the condition of suitable temperature, it can be sown every year. In recent years, planting in protected areas in winter, spring and autumn has become more and more common. After sowing, it was generally harvested for 50 days, and when the temperature was low, the growing period was extended to 60 rain for 70 days.

The main results are as follows: 1. the planting time is generally better in spring and autumn. In the south, land rent can be cultivated in spring, autumn and winter.

2. The way of sowing can be direct seeding or seedling transplanting, mainly direct seeding. Sow the seeds evenly on the culture soil, after sowing, it is appropriate to cover the soil with about 1 cm, pour through water, keep warm and moisturizing. The seedlings can emerge in 4-5 days, and intermediate seedlings are needed when the seedlings grow to 2-3 true leaves.

3, sowing utensils in balcony, rooftop, or courtyard planting chrysanthemum, the choice of cultivation containers are flowerpots, wooden pots, professional cultivation boxes, styrofoam boxes, etc., ploughing depth of 20 cm is appropriate.

Sowing and seedling raising

1. Seed treatment: 3-4 days before sowing, soak the seeds in 50-55 hot water for 15 minutes and soak them for 12-24 hours, put them in a warm place about 25 ℃ to accelerate germination, and wash them with clean water once a day during germination. If the new seeds should be treated at 0: 5 ℃ in advance, the dormancy would be broken in about 7 days.

2. Sowing selection: spring protected cultivation generally uses hotbed sowing and seedling raising in late March or April: open-field cultivation in spring, sowing and raising seedlings in hotbed in mid-April; open-field direct seeding in spring, sowing in small arch shed or plastic film in early May, summer and autumn, sowing in cold bed or open field in batches, sowing in 7-10 days.

3. Sowing method: visible cultivation method (direct seeding or seedling transplanting) is adopted by sowing or strip sowing, the seed amount per hectare is 60-70 kg, the strip sowing is about 10 cm apart, and the seed consumption is 30-37.5 kg per hectare. Seedling sowing in early spring seedling bed should be covered with medicine and soil to prevent sudden death. The suitable seedling age is 20 ~ 0 days, and the suitable planting period is 3 ~ 4 true leaves.

Planting and field management

It usually takes 5-7 days from sowing to germination. During germination, attention should be paid to moisturizing to prevent the soil from drying. When the height of the seedling is 2-3 cm and 1-2 true leaves, the seedlings are pulled out in the field to keep the distance between plants 1-2 cm. After shallow and middle ploughing, when the seedlings were planted at the stage of 3-4 true leaves, the temperature outside or in the greenhouse should be stable through 10 ℃. The distance between planting or fixing seedlings should be 4-6 cm. Watering the seedlings for the first time, watering the seedlings again after fixing the seedlings, and topdressing the available nitrogen fertilizer with the water. The seedlings can be harvested from time to time in the future.

Efficacy and function of Artemisia annua L.

[taste] the taste is pungent, sweet and flat.

Spleen and stomach.

[efficacy] reconcile spleen and stomach, facilitate urination, resolve phlegm and relieve cough.

1. Appetizer: chrysanthemum contains volatile oil with special flavor, which can be used as an appetizer.

2. Calming the mind: it is rich in vitamins, carotene and a variety of amino acids, which can nourish the heart and calm the mind, reduce blood pressure and tonify the brain, clear blood and resolve phlegm, moisten the lungs and liver, stabilize mood, and prevent memory loss.

3. Digestion: chrysanthemum contains volatile oil with special flavor, which helps to regulate qi, appetizer, increase appetite, and its crude fiber helps intestinal peristalsis, promote defecation, and achieve the purpose of relieving viscera and intestines. In addition, the aroma of chrysanthemum is fragrant, which can eliminate phlegm and open depression, avoid filth and turbid.

4. Convenient for edema: Artemisia annua contains a variety of amino acids, fats, proteins and high amounts of sodium, potassium and other mineral salts, which can regulate water metabolism, facilitate urination and eliminate edema.

5. Lowering blood pressure: chrysanthemum chrysanthemum contains a volatile essential oil, as well as choline and other substances, which can lower blood pressure and replenish the brain.

As mentioned above, although chrysanthemum chrysanthemum is very nutritious and delicious, there are still many people do not like to eat chrysanthemum, because chrysanthemum itself has a special smell, people who like to eat feel particularly fragrant, but some people are rejected because of its smell. If you like to eat, you can plant chrysanthemum at home, which is fresh and nutritious!