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Want to grow Angelica dahurica well? First understand its growth habits and cultivation techniques

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The growth habits and cultivation techniques of Angelica dahurica
    Growth habits of Angelica dahurica: It prefers a mild and humid climate and a sunny environment. It grows poorly in shaded environments. The main root of Angelica dahurica is deep and long, and it requires soil with a deep, loose, fertile, well-drained sandy loam.
Propagation of Angelica dahurica: Propagated by seeds.
1. Site selection and land preparation: Angelica dahurica has a deep main root, so soil with a deep layer, loose texture, and fertility, preferably sandy soil, is best. Apply 3000 kg of barnyard manure or compost per mu, plow deeply 30-40 cm, and make raised beds or flat beds 1.2-1.5 m wide.
2. Seed propagation: Sow with new seeds from the current year; seeds from the previous year have a low germination rate. Sowing can be done in spring or autumn, and autumn sowing grows better than spring sowing. Generally, drilling is used, with row spacing of 30 cm, opening shallow furrows 1-1.5 cm deep, sowing the seeds evenly into the furrows, covering with soil and pressing lightly so that the seeds make close contact with the soil, then watering. At a temperature of about 25°C, seedlings can emerge in half a month. The seed amount per mu is about 1 kg.
Scientific cultivation techniques for Angelica dahurica:
1. Land preparation   Angelica dahurica uses its roots as medicine, and its main root is deep and long. Its soil requirements are best met by sandy loam with a deep soil layer, loose and fertile texture, sufficient sunlight, high and dry terrain, and good drainage. Deeply plow the soil about 30 cm, cultivate finely and harrow level, and at the same time, in combination with land preparation, apply 2000-2500 kg of farmyard manure per mu as base fertilizer, then level and harrow finely, make raised beds 1.3 m wide, open relatively deep drainage ditches around them, and rake the bed surface into a turtle-back shape to facilitate drainage.
2. Sowing   Angelica dahurica has strict requirements for sowing time. Under normal climate, sow in mid-to-late September. However, in warmer regions, the sowing time can be extended until before Frost's Descent.
Angelica dahurica is best sown directly. If raised as seedlings and transplanted, the main root will branch more and grow poorly. Generally, hole sowing is used, with row spacing of 30-35 cm and plant spacing of 20-25 cm, digging holes 8-10 cm deep, applying an appropriate amount of burned soil ash and human feces and urine mixed evenly as base fertilizer, about 250-300 kg per mu, and about 750 g of seed per mu for hole sowing.
Drilling or broadcasting can also be used. For drilling, the row spacing is about 30 cm, the furrow width is 10 cm, and the depth is 7-9 cm. Mix the seeds with burned soil ash and sow them evenly into the furrows. Drilling requires about 1 kg of seed per mu. After sowing, immediately water once with thin human and livestock manure water, then cover with burned soil ash until the seeds are no longer visible. Then cover the bed surface with grass to retain moisture and prevent weeds from growing thickly. If dry weather occurs, water once to keep the soil moist, and germination and seedling emergence can occur after 15-20 days.
II. Field management techniques
1. Cultivation, weeding, and thinning After Angelica dahurica emerges, thinning should begin when the seedlings are about 5 cm tall. First thinning: for hole sowing, leave 5-6 small seedlings per hole; for drilling, leave 1 small seedling every 3-5 cm. When the seedlings are about 10 cm tall, a second thinning must be carried out; for hole sowing, leave 3-4 small seedlings per hole, and for drilling, leave 1 small seedling every 7-9 cm. The third and final thinning, which is final stand establishment, is done in late February of the following early spring; for hole sowing, establish 3 seedlings per hole; for drilling, establish 1 seedling every 10-15 cm (that is, plant spacing). Final stand establishment should follow the principle of “pull the large and keep the small” to avoid excessive growth and early flowering of Angelica dahurica, which would seriously affect its yield. At the same time, after each thinning, combine with one cultivation and weeding.

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