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Codonopsis Seed Prices and Planting Methods Explained in Detail
Codonopsis Seed Prices and Planting Methods
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How to grow Codonopsis pilosula so it thrives? Key points of Codonopsis pilosula cultivation techniques
How to grow Codonopsis pilosula well
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What are the control methods for diseases and pests of Platycodon grandiflorus?
Control methods for diseases and pests of Platycodon grandiflorus
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How to grow Panicled Codonopsis (Codonopsis convolvulacea)? Master these key growing techniques
Growing techniques for Panicled Codonopsis
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Cultivation Methods and Key Technical Points for Codonopsis tangshen
Codonopsis is a perennial herbaceous plant of the Campanulaceae family. Its main chemical constituents are saponins, alkaloids, polysaccharides and volatile oils. Its root is used medicinally; it can tonify the middle and augment qi, strengthen the spleen and benefit the lungs; it treats weakness of the spleen and lungs, shortness of breath and palpitations, asthmatic cough due to deficiency, and internal heat with wasting and thirsting, among other conditions. Codonopsis is a valuable Chinese medicinal material with relatively high medical value. It is not only used in large quantities as a raw material for prescriptions and patent medicines, but is also widely used in the health beverage and green food industries, and market demand is relatively large. There are many types of Codonopsis, including Lu Codonopsis, Chuan Codonopsis, Codonopsis pilosula var. modesta, Dong Codonopsis, Codonopsis tubulosa and Chai Codonopsis. Commercial Codonopsis
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Codonopsis (dangshen)
Codonopsis pilosula, Campanulaceae. Morphological characteristics: a herbaceous twining vine with white milky sap. The root is carrot-shaped and cylindrical, about 30 cm long, often branching in the middle. The stem is about 1.5 cm long, much branched, hairless; leaves alternate; leaf blades ovate or narrowly ovate, 1.2-6.5 cm long, 0.6-5 cm wide, margins wavy and bluntly toothed, both surfaces with dense or sparse short appressed hairs; petioles 0.6-2.5 cm long, often sparsely covered with spreading short hairs. Flowers 1-3 borne
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Control Methods and Key Technical Points for Codonopsis Diseases
I. Rust mainly damages the stems and leaves of Codonopsis. Control methods: clean the field, eliminate field weeds and diseased plants. In the early stage of the disease, spray 25% triadimefon wettable powder at 1000-1500 times dilution, or 90% dithianon sodium at 400 times dilution for control. Spray once every 7-10 days, for 2-3 consecutive sprays. II. Root rot mainly damages the roots of Codonopsis. Control methods: from July to August, apply additional phosphorus and potassium fertilizer. Before transplanting Codonopsis, soak the roots in 50% thiophanate-methyl wettable powder at 1000 times dilution for 5 minutes. When the disease occurs
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Key Technical Points for Harvesting and Processing Codonopsis pilosula
(1) Harvesting: Direct-sown Codonopsis pilosula needs 3 years before it can be harvested, while transplanted seedlings are best harvested in the second year after transplanting. In autumn, after the above-ground stems and leaves turn yellow and wither, choose a sunny day and dig carefully and deeply, turning out the whole root, avoiding cuts and breakage so that the sap does not flow out and form black scars, which would reduce quality. (2) Processing: Wash the harvested Codonopsis pilosula, grade it, and process each grade separately. First spread it on a drying mat in the sun for 2-3 days; when the roots become soft from drying, tie each grade of Codonopsis pilosula into small bundles, hold the root head with one hand, and with the other hand rub downward along the root several times. The next day, sun-dry again, and in the evening gather them into ox-horn bundles, each weighing 1
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Detailed Explanation of Harvesting and Processing Methods for Codonopsis pilosula
For direct-sown fields, harvest in the third year; for transplanted fields, harvest after two years of growth following transplanting. For medicinal Codonopsis pilosula, the harvest period runs from when the aboveground parts wither until before the ground freezes, but the best quality is obtained when harvested within the half-month before and after the White Dew solar term. When harvesting, first remove the support stakes, cut off the stems and vines, then dig up the roots. Take care not to damage the roots while digging, to prevent the loss of sap. Remove the residual stems from the dug roots, wash off the soil, and sort them by size, length and thickness into old, large and medium grades for drying in the sun. After drying until half-dry, briefly blanch in boiling water, then sun-dry or oven-dry (oven-drying must use only a low fire, with the temperature around 60°C
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