Chrysanthemum, also known as Artemisia selengensis, is a perennial health vegetable that is not only fresh and delicious but also crisp and rich in nutrients. It has a unique flavor and offers various health benefits, including improving appetite, promoting digestion, and aiding in detoxification. This plant is traditionally used to treat conditions such as stomach weakness, poor appetite, edema, and even acute infectious hepatitis. Its nutritional value is comparable to that of potatoes, and it helps in liver glycogen storage and detoxification. Additionally, chrysanthemum contains aromatic oils that can be used as natural spices.
Summer is an ideal season for vegetative propagation of Artemisia selengensis. There are multiple methods available, offering growers flexibility in their cultivation practices. Once propagated during summer, the plants can later be used for off-season cultivation in winter.
One common propagation method involves cuttings. In July and August, select healthy branches from robust plants. Remove the upper tender parts and the lower lignified sections, then cut the stems into 15 cm pieces. Retain 2 to 3 leaves at the top and make a slanted cut at the bottom. Prepare shallow trenches about 10 cm deep with 3 to 5 cm spacing between cuttings. Place the cuttings 3 to 4 cm apart along one side of the trench, ensuring the soil covers approximately 10 cm of the cutting. After planting, water thoroughly and repeat watering after 1 to 2 days. Maintain consistent moisture by irrigating as needed based on soil conditions.
Another method involves layering. In July and August, dig a trench 6 to 7 cm deep with a 45 cm spacing. Select healthy shoots from Artemisia ulmoides fields, trim the top 30 cm, and place them in the trench, burying them with soil and watering regularly. The stems will develop roots and sprout new growth. By early March of the following year, many shoots will emerge, with most appearing by late March.
Rhizome propagation is also effective and can be done in summer or other seasons. Dig up rhizomes from the field, remove old ones, and use the new rhizomes as planting material. Plant them in trenches, cover with soil, water, and keep the area moist. The recommended amount is around 150 kg per mu (approximately 667 square meters).
Field management is crucial for successful cultivation. Apply 3,000 kg of organic manure or 50 kg of rapeseed cake and 25 kg of superphosphate as base fertilizer before planting. When the plants reach 4 to 5 cm in height, apply 20 to 30 kg of nitrogen fertilizer per acre. Repeat this half a month later, and again after each harvest. In winter, spread a layer of river mud. In the following year, apply quick-release fertilizer once a month, using 2,000 kg of human waste per acre or 30 kg of ammonium bicarbonate and 25 kg of phosphate fertilizer.
Watering is essential since wormwood requires consistently moist soil. Avoid letting the field dry out—water frequently, especially after each topdressing.
Weeding should be done several times before the plants grow large enough to shade the ground. When seedlings reach 5 to 10 cm in height, apply 3 to 4 grams of gibberellic acid per acre mixed with 12 kg of water and spray the foliage. Harvesting should occur when the young leaves are 8 to 15 cm long, with the top heart leaves still unopened and the stems slightly lignified, showing a white-green color. Cut the plants close to the ground, remove only a few leaves, and clean the rest. Bundle them by size, rinse with water, and store in a cool, damp place. After 8 to 10 hours of softening, they are ready for market.
POCT Analyzer
The characteristics of POCT devices determine that they can play an important role in primary medical institutions. In order to standardize and strengthen the application of on-site rapid testing in primary medical and health institutions, promote the rational allocation, safe and effective use of POCT in primary medical and health institutions, give full play to its use value, and ensure the healthy development of medical and health services, "On-site Point-of-care Testing (POCT) Primary The Expert Consensus on the Application of Medical and Health Institutions (hereinafter referred to as the "Consensus") came into being. The consensus was published in the 2019 "China Medical Equipment" magazine after first draft writing, 2 expert on-site discussions, 2 expert online review meetings, and 3 submission revisions. The formulation of the consensus will greatly promote the management standards of the POCT industry, continuously increase the training of grass-roots personnel, deeply understand the application requirements of POCT at the grass-roots level, and promote the rapid development of the POCT industry.
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