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Seed breeding. Use the newly harvested seeds. Nursery should be selected semi-yin and half sunslope, apply fertilizer or compost 1500 kilograms per acre, and then plowing, squeezing fine, leveling made flat or sorghum. Codonopsis can be sowed from the early thaw in the early spring to the freezing in the early winter. It is usually sown in the rainy season of July and August or before the freezing in the early winter. Spring sowing can also be used where there are irrigation conditions. To make the seed germinate earlier, it can be used for soaking, that is, using warm water of 40°C-50°C, put the seeds for about 5 minutes, put the seeds in the gauze, wash it several times with water, and then put it at a temperature of 15°C- The indoor sand pile at 20°C was sprayed with clean water once every 3-4 hours, and the seeds could be sowed 5-6 days later.
Broadcast or broadcast. Spreading: Spread the seeds evenly on the surface of the bowl, cover with thin soil, and gently suppress it. The sowing rate per acre is about 1 kg. Drilling: Dig a ditch with a spacing of 10 cm. Spread the seeds evenly in the ditch and cover with thin soil. The sowing amount per acre is 0.5-1 kg. After sowing, it shall be covered with corn stalks, rice straw, or pine twigs, etc. After the sowing, it shall be properly watered and keep the soil moist. When the seedling height is about 5 cm, the cover is gradually removed, and when the seedling is exposed, the seedlings should be sun dried. Can also be planted with corn, wheat and other crops. When Codonopsis pilosula grows to about 10 cm in height, it is possible to go through dense seedlings and weak seedlings to keep the spacing between 1-3 cm. Seedlings should pay attention to timely weeding and weeding in order to avoid deep roots. Nursery generally do not apply fertilizer, to properly control the water, seedlings should be ground watering, seedlings can grow after reducing the number of watering, the rainy season should pay attention to drainage. One year after growing seedlings, you can transplant the field.
Transplanting Daejeon. When planting, apply 3,000 kg of fertilizer or compost per acre, or add 30-50 kg of superphosphate. Then, plow 25-30 cm deep, rake finely and level it to make it about 120 cm wide. Slopes generally do not rake, along the slope to leveling can be. After the land is well-frozen, it is transplanted before sprouting before mid-October to November, or after thawing in early spring. According to the spacing of 20-30 centimeters, open 15-20 centimeters deep ditch. The hillside should be ditched horizontally along the slope. Codonopsis pilosula roots should be placed in the ditch with 6-10 cm of planting distance, and then cover about 5 centimeters of soil. Mu with about 25 kilograms of roots. When the seedlings are erected at a height of 30 cm, they can generally use bamboo poles to take the "person" frame.
Codonopsis seedling transplanting
Codonopsis is a perennial herb of the Campanulaceae family. Its roots are used for medicinal purposes and have functions such as qi and nourishing blood, and fluid and clear lungs. Codonopsis is cool and humid. It should be planted in deep soil, loose texture, and fertile soil. The alfalfa land, saline-alkali soil, and black clay soil should not be cultivated.
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