Key points of cultivation techniques of Angelica sinensis covered with plastic film

Angelica sinensis, umbelliferae, perennial herb, root hypertrophy. The leaves are pinnately compound. Summer flowering, white flowers, compound umbels. Fruit long elliptic, lateral ribs have broad wings. Produced in Gansu, Shaanxi, Sichuan, Hubei, Yunnan, Guizhou and other provinces. In traditional Chinese medicine, root is used as medicine. It is warm in nature, sweet and bitter in taste. It has the function of nourishing blood and activating the body, regulating menstruation and relieving pain. It is mainly used for treating blood deficiency, irregular menstruation, dysmenorrhea, rheumatism, pain, falling injury, carbuncle and so on. Root contains volatile oil, volatile oil can calm and regulate uterine activities. The water-soluble components of Angelica sinensis have the effect of exciting uterus and analgesic effect.

The cultivation technique of Angelica sinensis covered with plastic film is an effective measure to realize "two high and one excellent" in Angelica sinensis production. Angelica sinensis can obtain obvious effect of increasing yield and income by using plastic film mulching and its supporting techniques.

1. Select the crop. Eryin terraced fields with fertile and loose soil, deep soil layer and high organic matter content were selected. @#@245@#@crop is good, avoid continuous cropping. Deep ploughing of the previous crop, combined with ploughing before sowing, fertilization and ridging.

2. Apply enough base fertilizer. Seedlings apply 5000 kg of farm manure and 10~100 kg of oil residue, combined with ploughing before sowing, concentrated deep application. Chemical fertilizer 20~50 kg diammonium phosphate, ammonium nitrate 10~15 kg, combined with ridge concentrated application into the ridge.

3. ridging and mulching. Choose 70~80 cm wide, 0.008 cm or 0.005 cm thick ultra-thin film, strong micro-film, mu dosage 3~5 kg. The ridge surface is required to be 60 cm wide, the ridge spacing is 40 cm, and the ridge height is 10 cm, so as to be straight, flat and light. Ridging immediately after the film, film requirements to do exhibition, solid, strict.

4. Plant in time. One day before planting, after the selected superior seedlings are shaken into pure soil, the roots are dipped into 1.5kg of Chinese angelica root per mu, the medicinal seedlings are wrapped by the medicinal liquid, and then planted after drying, or 5kg of fine sand is treated with 5kg of phosphorus granules per mu, and the fine sand is sprinkled on the top of the medicinal seedlings during transplanting. Each ridge planting 2 rows, row spacing 40 cm, plant spacing 25 cm, mu seedling protection about 5000 plants. When planting, holes are drilled on the ridge with a punch, the holes are staggered and triangular, then the returning seedlings are moved into the holes, two seedlings are planted in each hole, the top buds of the returning seedlings are 2 - 3 cm away from the mulching film, compacted with fine soil, and the cracks are sealed tightly.

5. Timely release of seedlings. About 10 days after transplanting, iron nails can be used in the early morning to smash the hard soil layer on the top of the seedlings, and then a little fine soil can be sprinkled on the top of the seedlings to prevent the sun from burning the sprouts.

6. Field management.① Timely check seedlings, supplement seedlings and thin seedlings, and keep one healthy seedling at each hole.② Weeds in furrows shall be hoed frequently, and weeds in film shall be removed in time.③ 50g potassium dihydrogen phosphate per mu, 0.5kg urea and 45kg water when the seedlings are weak, spraying once every 7 days, spraying 2~3 times in total. 4. The plastic film Angelica sinensis should be harvested late before and after frost.