Artemisia selengensis is a kind of semi-wild special vegetable developed in recent years. Take the tender stem shoots on the ground and underground stems as the use of parts. Artemisia selengensis is rich in carotene, potassium, calcium and 13 kinds of amino acids beneficial to human body. It is a kind of health vegetable; its hypertrophic rhizomes are rich in starch, and besides fresh Vegetables, they can also be used as raw materials for brewing and livestock feed. At the same time, it also has a high medicinal value, with the benefits of gallbladder yellowing, nourishing yin and moistening; the whole plant is used as a medicine to break the blood and phlegm, lower air and meridians; burning hay can repel mosquitoes. 1 Botany traits are well-developed and have a shallow distribution in the soil. Roots born in the underground stem, dense root hair, the ability to absorb water and fertilizer is extremely strong. The stem above the ground is upright, 1.5m high, purple. The underground stems are rooted, knotted, white, stout, and are both the main storage organ for nutrients and also the reproductive organs. They have latent buds on them and can sprout adventitious roots and a large number of fibrous roots. Leaves are alternate, leaves are longer, and plumes are deeper. Cracked, coarse and blunt teeth on the edge of the lobe. Flowers pale yellow, capitate inflorescences, short-stalked, inner bisexual flowers, outer female flowers; capitate insecticidal, mostly narrow, complex racemes. Achenes are tiny, black, and uncapped, easily detached after aging. 2 Biological properties Artemisia halodendron prefers warm and humid climatic conditions and does not tolerate drought. At temperatures above 5°C, underground stems begin to germinate. The optimum temperature for growth is 15-28°C, and it grows slowly below 10°C. It will wither in the upper part of the frost and it will be cold in the underground. It can safely survive in winter in the open country of northern China. The light requirements are not strict, but in sunny conditions, it is conducive to the vegetative growth of plants, under the short-day is conducive to flowering and fruiting. When the seeds germinate, they are happy. The soil requirement is not strict and it grows well in moist sandy loam. 3 Cultivation Techniques 3.1 Breeding 3.1.1 Seed Propagation Seed propagation in new planting areas is more convenient for seed propagation. It can be transplanted or broadcast live. Live direct in the open field in the north can be carried out in the late March to April. If early planting is required, nursery can be used for protection. The sowing date can be from late February to early March. Bed soil requires flat, finely crushed, moist, after emergence and time seedlings. When seedlings are seeded in a live broadcast, seedlings must be transplanted. 3.1.2 The ramets usually propagate in the spring from April to May. When taking the seedlings, cut off the shoots 5 to 6 cm above the ground (the shoots can be used for cuttings), and then cut the roots and underground stems to remove the old roots and underground stems. Plants were planted in shallow trenches with a spacing of 30 cm. The planting distance was 5 to 10 cm. The underground stems were also cut off. Each section was 2 to 3 knots. Shallow trenches were laid flat in the furrows with a spacing of 10 cm. 3.1.3 Cutting propagation The appropriate cutting season is from late April to July. Cut the cuttings from the robust plants, cut the upper part of the cuttings and the lower part has been lignified, and then cut and grow about 15cm, retain 2 to 3 above. The leaves were cut into bevels at the bottom, and ditching was performed at an interval of 8 to 10 cm, and the depth was about 10 cm. The cuttings were placed slightly on the side of the ditch at a spacing of 3 to 4 cm, and then the soil was covered with a depth of cut of the cuttings. 2/3, after pouring soil once permeated with water, once every 2 to 3 days, pour water once, and then watering according to flood conditions, keeping the soil moist. 3.2 Soil Preparation and Fertilization Choose a land that is easy to fill with water, water, and fertility. Apply sufficient base fertilizer before planting. Normally apply 3 to 5 cubic meters of organic fertilizer per acre, 50kg of cake fertilizer and 50kg of phosphate fertilizer. Deep plowing, fine pounding, leveling, and making plot. 3.3 Water and Fertilizer Management After the first spring application of the first-rate fast-acting fertilizer, 30 to 40 kg of urea per hectare and 15 to 20 kg of phosphate fertilizer are used. After each harvest, they are topdressed once. Each time after topdressing, it is necessary to pour water once. The Artemisia halodendron grows quickly and has a large amount of evapotranspiration on the ground, while the root group is shallow and it is not tolerant to drought. The field should always be kept moist. 3.4 Cultivated and weeding In the early spring, we must work intensively to raise the ground temperature. In the spring and summer seasons, we must combine timely cultivators to remove field weeds. No cultivator after ridge closure. 3.5 Diseases and Insects and Diseases Control Artemisia halodendron has fewer pests and diseases, and can be ravaged by locusts in hot and dry summers. It can be used for 50% of the 2,000 times of the fog, or 4000 times of the net, or 25% of ikacas 1000 times. Prevention, spray once every 5 to 7 days, even spray 2 or 3 times. 4 Harvesting 4.1 Spring stems are slightly springy, when the plants are 10-20 cm high, the top heart leaves are not scattered, the stems are not lignified, and the color is white-green when harvesting is appropriate. When harvesting, close the surface with a knife Cut off the ground, keep the heart and leaves near the leaves, remove the rest of the leaves, according to the coarse sub-level binding, yards in the shade, covered with a damp cloth, after 8 to 10 hours simple softening, can be listed. About once every 30 days can be harvested 1 time, 1 year can be harvested 3 to 5 times. 4.2 After the second year of planting rhizomes, select vigorously growing and dense plots and harvest underground stolons in spring or autumn. 5 Edible method stem leaves can be cold, fried food. First into the boiling water, thoroughly, remove and squeeze water, chopped, salad or fried food, fragrant and crisp, and can treat acute hepatitis, moisturize the skin, enhance physical fitness. The rhizomes are used for pickling, by washing, peeling, drying, and placing them in the altar. 1 layer of salt of garland chrysanthemum is used (the amount of salt is 6% to 10% of the stem weight). Once, serve 10 days later. Wash, cut, and serve when eating. It is a special dish.
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