The selection of Codonopsis pilosula
Codonopsis pilosula is a deep root plant, and adult plants like light, so it is appropriate to choose sunny sandy loam with deep and fertile soil layer. The sticky weight of low-lying waterlogged soil is not suitable for cultivation, water accumulation in the soil is prone to rotten roots, poor growth of aboveground plants, low yield and poor quality. It is suitable for slightly acidic to neutral soil with a pH value of 6.5-7. Legumes and Gramineae are the best crops in the previous crop, and the previous crops are prone to diseases in vegetable stubble, so it is not suitable to choose. Avoid continuous cropping, generally should be replanted every 3-4 years.
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Morphological characteristics and suitable environment of Codonopsis pilosula
[morphological characteristics] Codonopsis pilosula is a perennial herbaceous vine. The root is cylindrical, with a light gray surface and a chrysanthemum heart. The stem is twining, the cross section has white milk, the stem is long and much branched, the lower part is hispid, and the upper part is smooth. Leaves opposite or alternate, stipitate, leaf blade ovate or broadly ovate, entire. Flowers solitary in leaf axils or tip, Corolla broadly campanulate, yellowish green, with lavender spots, apex 5-lobed, lobes triangular. Capsule conical. Seeds small, brown and glossy. The flowering period is from August to September and the fruiting period is from September to October.
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Medicinal value of Codonopsis pilosula
The root of Codonopsis pilosula is used as medicine, which is sweet and flat. It has the function of tonifying spleen and replenishing qi, relieving thirst and promoting fluid. It is used for the treatment of weakness of spleen and stomach, deficiency of lung qi, weakness of body, shortness of breath and cough, weakness of language, blood deficiency, dizziness and palpitation, deficiency of fluid, dry tongue, thirst and so on. The cultivation history of Codonopsis pilosula is relatively short, and the cultivation of Codonopsis pilosula has not been recorded in previous dynasties. Artificial cultivation of Codonopsis pilosula was the earliest in Shanxi Province. Changzhi County, Shanxi Province is the "hometown of Codonopsis pilosula" in China.
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