Detailed Explanation of Key Points for Artificial Cultivation Techniques of Angelica Dahurica

I.Angelica dahuricaIts root is used for medicinal purposes, possessing functions such as dispelling wind and removing dampness, draining pus and promoting tissue regeneration, and activating blood circulation to relieve pain. It can also be used as a spice, and is one of the Chinese medicinal herb varieties officially announced by the Ministry of Health of China as both a medicine and a food. Modern research has proven that Angelica dahurica is the whitening fairy in beauty and cosmetic products, with an extremely large usage volume. It occupies a primary position among the forty major commonly used Chinese medicinal herbs currently under artificial cultivation. Main producing areas: Hebei, Henan, Shandong, Sichuan, Anhui, Zhejiang and other provinces.

II. Growth Habits

Angelica dahurica is a light-loving crop that prefers a mild and humid climate. Its main root is deep and long, requiring soil with deep, loose and fertile sandy loam with good drainage. If the soil is too sandy, too clayey, or shallow, the roots tend to fork, resulting in low yield and poor quality.

III. Main Cultivation Techniques

1. Suitable sowing time: Seed propagation is used, with 2.5 kg of seeds per mu. To ensure full and vigorous seedlings, the sowing time must be chosen around the Autumn Equinox (September 15 to October 15 on the Gregorian calendar). Timely sowing is the key to high yield of Angelica dahurica.

2. Management: After seedlings emerge, 1-2 intertillage operations can be carried out in combination with thinning. In the mid-to-late growth period, herbicides can be used for weed control, and intertillage is not necessary.

3. Fertilization: When deeply plowing the soil, apply 0.5 cubic meters of organic fertilizer or barnyard manure, 50 kg of superphosphate, 25 kg of ammonium bicarbonate, and 10 kg of potassium fertilizer per mu as base fertilizer. The first topdressing is when seedlings are 6-10 cm tall, applying 5 kg of diammonium phosphate per mu; the second is in June, during the mid-growth period, applying 25 kg of superphosphate and 10 kg of potassium fertilizer per mu.

4. Harvesting and processing: Harvest before the End of Heat the following year (late July), when the stems and leaves turn yellow and withered. If harvesting is too late, the roots will sprout again, consuming a large amount of nutrients and affecting yield and quality. When digging, cut off the withered leaves above ground, use a claw hook or pickaxe to dig up the entire root (mechanical digging can also be used), remove all soil and fine roots, and dry in the sunlight until completely dry before selling.