If you plan to eat mugwort leaves as wild vegetables, the best picking time should be around Tomb-Sweeping Day. At this time, Artemisia argyi leaves taste fresh and tender, which is more suitable for making all kinds of gourmet snacks. However, if you plan to use Artemisia argyi leaves as Chinese herbal medicine, you must pick them around the Dragon Boat Festival 15 days. At this time, the leaves of Artemisia argyi are tender and full, which is the most mature time for its growth, and the accumulation of medicinal components has reached its peak.
Due to the large geographical span between north and south of China, the best picking time of Artemisia argyi leaves for medicine or medicine in different places will be different. For example, Hakka people are used to eating wormwood leaves in the first month, and there is a saying that "wormwood leaves make up in the first month and fill their stomachs in February". Therefore, the best time to pick mugwort leaves in various places should be adapted to local conditions, and it is not possible to copy them mechanically.
Cultivation techniques of wormwood
In production, asexual reproduction is mainly carried out through rhizomes, so attention should be paid to the time of ramet division. But it can also be propagated by seeds. Generally, seeds are sown in March, and rhizomes are propagated in 165438+ 10. Site selection needs to be cautious. The width of the frame is about 1.5 meters, and the middle of the frame is high and the two sides are low like a "fish back" to avoid diseases caused by stagnant water.
Pay attention to fertilization. Plantar fertilizer should be applied before sowing. Generally, 4000 kilograms of decomposed farmyard manure should be applied every 667 meters. Deep tillage and soil should be fully blocked, and the bottom water should be poured at one time after drainage. Need fertilizer. After each harvest, a certain amount of topdressing should be applied, mainly decomposed rare human and animal manure, and phosphorus and potassium fertilizer should be applied as appropriate. Keep the soil moist during production.