What are the varieties of Artemisia annua? What are the methods of raising seedlings?

Artemisia annua was originally a wild plant growing by the lake, but it has been artificially planted because of its unique taste and high nutritional value. So how to choose the artificial planting Artemisia annua L.? What are the specific varieties? What are the methods of raising seedlings? Let's get to know it.

What are the varieties of Artemisia annua?

1. Artemisia annua L.

The tender stem of Chenopodium is light green, stout and succulent, crisp and tender, not easy to aging. The leaf color is slightly lighter, the leaf surface is yellowish green, the spring bud is earlier, the edible part is more, the yield is higher, but the fragrance is not strong.

2. Artemisia annua L.

Artemisia annua stem bluish, fragrant, according to the leaf type belongs to Artemisia annua L. Artemisia annua is mainly characterized by medium maturity, high yield, dark green tender stem and strong fragrance. The tender stem for food is mainly grown from the underground after the stem is cut off from Yuan to April.

3. Red Chenopodium

When the tender stem of Chenopodium quinoa sprouted, it was green or lavender, and the color deepened with the growth of the stem, and finally the tender stem was lavender or purplish red. The stem has more fiber, easy to aging, and the leaf color is darker. The spring sprouting is late, the edible part is less, the yield is lower, but the fragrance is stronger.

What are the methods of raising seedlings of Artemisia annua?

1. Cuttage seedling

At the end of April and the beginning of May, the aboveground stems were dug, the middle and lower leaves were erased, cut into cuttings of 10-15 cm, and cut in the seedling shed according to the density of 5 cm between plants and 10 cm between rows. The cutting depth is suitable for cuttings to be buried in the soil with ⅔ cuttings per square meter. After planting, strengthen fertilizer and water management, promote plant growth, in order to obtain robust seed strips.

2. Soil preparation and fertilization

Choose sandy soil with convenient drainage and irrigation and fertile soil for cultivation. 4000-5000 kg of mature farm manure, 25 kg of ammonium bicarbonate, 25 kg of potassium chloride, 25 kg of calcium superphosphate, 100 kg of cake fertilizer and 50 kg of high content compound fertilizer were applied per mu as base fertilizer.

3. Timely planting

The end of June and the beginning of July is generally a rainy season, and cuttings are easy to take root and sprout, which is a good time for cutting transplantation. Uproot the Artemisia annua in the nursery, cut off the underground stem, pinch off the tender tip, erase the leaves, cut and grow into 10-15 cm cuttings, trench cutting and planting. The plant spacing is 5 cm, the row spacing is 10 cm, and the planting depth is ⅔, which is suitable for inserting cuttings into the soil and pouring water once after insertion.

4. Field management

After cutting rooting, topdressing 1-2 times, each time with 15 kg of urea per mu, and then irrigated immediately after topdressing. Wild Artemisia annua has wide adaptability, strong stress resistance, generally no disease and insect harm, if in the high temperature and rainy season or poor ventilation, it is easy to be infected with powdery mildew; protected cultivation, should pay attention to prevent gray mold, can be used carbendazim and chlorothalonil spray control.

5. Stratified harvest

March to April is the peak period of the aboveground stem. When the stem of Artemisia annua is about 20 cm high, it is cut off 3-4 cm from the ground with a sharp knife, leaving a few heart leaves in the top segment, and all the other leaves are erased. After rinsing, tie it quantitatively, put it in a cool place, cover with wet cloth, soften it for about half a day, and then sell it. From late October to February of the following year, the underground stem was dug with a spade or rake, and the soil of the rhizome was washed and sold on the market.

Artemisia annua is a wild plant of Compositae, which is a kind of wild vegetable fed by roots and tender stems. In recent years, due to the increasing domestic consumption, wild Artemisia annua has been in short supply. Therefore, artificial cultivation of Artemisia annua has sprung up in some places and achieved objective economic benefits, which is a good project to get rich in rural areas.

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