When is the best time to pick wormwood?

First, wormwood should be picked in late spring and early summer. Roots that overwinter underground begin to germinate at the beginning of March every year, and the first crop is harvested in late April, and 4-5 crops are harvested every year.

Second, the cultivation techniques of wormwood:

1. Rhizomes are mainly used for asexual reproduction in production, 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.

2. Be careful in site selection. 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.

3. 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.

4. 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.

Extended data:

Ai Shi has a strong nature, likes sunshine, is drought-resistant and cold-resistant, and has low requirements for soil conditions. The neutral soil with abundant sunshine, deep soil layer, good soil permeability and rich organic matter is the best, and the fertile, loose and well-drained sandy soil and clay loam grow well. In order to save land resources, we should choose wasteland, roadside, river and hillside in hilly areas for reasonable layout, which can be planted on sloping land and flat land, as well as in front of houses and fields.

However, as a medicinal material for both food and medicine, it is more important to ensure the quality, safety and efficacy of raw materials besides obtaining high yield. Therefore, the air around the planting plot should be clean, free of dust, domestic sewage and industrial water pollution, and the air quality should meet the national standard GB 3059-20 12.

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