To realize the high yield of Angelica dahurica, the following measures can be taken:

1. Fine ground preparation: Angelica dahurica is suitable for planting in deep, loose and fertile soil, well-drained sandy loam. After the harvest of the previous season's crop, the soil should be y turned over 30 centimeters or more, let it be exposed to the sun for a few days, and then plowed again. Combined with land preparation, each mu into the compost 2500 kg turned into the soil as a base fertilizer. Then, leveling and harrowing into raised beds, connecting the beds into a turtleback shape, the topsoil layer requires loose and fine.

2. Timely sowing: timely sowing is the key to high yield of Angelica dahurica. Early sowing, Angelica dahurica growth that year is too strong, the second year, most of the plants draw shoots and flowers, so that the root hollow rot, can not be used medicinally; too late, the seedlings out of the ground are susceptible to frost damage.

3. scientific fertilization: scientific fertilization is the key to improve the yield and quality of Angelica dahurica, fertilization is too much, too much growth, easy to cause shoots and flowers, reduce yield; insufficient fertilization, poor growth. Generally less before spring or do not apply, in order to prevent the seedling growth too strong, early shoots and flowers. Nutritional growth began to flourish after spring, can be fertilized 3 to 4 times. Fertilizer types can choose human manure and urine rot cake fertilizer, circle fertilizer, urea and so on. A time before the sealing of the ridge can be equipped with phosphate and potash fertilizer, prompting the roots to be thick.

4. Drought and flooding: dahurica dahurica sowing soil drought, should be timely irrigation to keep the soil moist, in order to facilitate the emergence of seedlings. Growing period, such as the weather drought, should be timely watering, to ensure that plant growth needs too much rain or waterlogged fields, should be promptly drained to remove waterlogging, in order to prevent disease or rotting roots.

5. Disease and pest control: Angelica dahurica disease occurs less, sometimes gray spot disease and spotted wilt. In order to reduce the source of disease, should increase the application of organic fertilizer to improve the soil to enhance disease resistance.

Through the above measures can improve dahurica yield and reduce the problem of pests and diseases, please note that there are inside