Brief introduction of angelica dahurica

Angelica dahurica, alias Angelica dahurica and Angelica dahurica, is a tall perennial herb in Umbelliferae. Its roots are used as medicine, mainly produce

Brief introduction of angelica dahurica

Angelica dahurica, alias Angelica dahurica and Angelica dahurica, is a tall perennial herb in Umbelliferae. Its roots are used as medicine, mainly produced in Henan, Hebei, Shanxi, Inner Mongolia and Northeast China. It is cultivated in Northeast China and North China.

1. Biological characteristics

(1) growth and development

Angelica dahurica is sown in autumn in the first year, in the vegetative growth period in the second year, and the roots can be harvested when the plants wither and bolt and bloom in June-July in the third year, and the fruits mature in July-September. In the second year of production, the number of flowering plants bolting in advance reached 20%, which seriously affected the yield and quality. Early bolting should be prevented in cultivation.

(2) The ecological habits are fond of light, warmth, humidity, drought, high temperature and cold resistance, and the seedlings can tolerate the low temperature of -7℃; The suitable growth temperature is 15 ~ 28℃, and the stems and leaves grow fastest at 24 ~ 28℃, but they grow poorly above 30℃.

2. Cultivation techniques

(1) land selection and preparation. Angelica dahurica is a deep-rooted plant and should be planted in sandy soil or alluvial soil with deep soil layer, loose and fertile soil and good drainage. Apply 4000 kilograms of manure or compost as base fertilizer per mu, and turn it 30 cm deep. After drying, plow 1 time, carefully level and rake, and then make a border. The frame width is1-2m, the height is 20cm, and the groove width is 30cm. Water 1 time before sowing.

(2) Breeding methods. Reproduce with seeds. Sowing in spring in early April, ditch the whole ground with a row spacing of about 30 cm and a depth of 6-9 cm, evenly sow the seeds, and slightly compact them after covering the soil. The amount of seeds used per mu is about 1 kg. Seedling can emerge 20 days after sowing. Sowing in autumn from August to September, winnowing the newly harvested seeds, ditching according to the row spacing of 30cm and the ditch depth of 6-9cm, and then covering the soil for compaction. Seedling can emerge in about 65438 05 days after sowing. Autumn sowing has higher yield and better quality than spring sowing, and autumn sowing is generally used in production.