What is the annual yield per mu of three kinds of Pinellia ternata?
If Pinellia ternata is propagated with tubers, use hotbed or electric hotbed to promote germination. At the beginning of March, that is, between Rain Water and sting, when the ground temperature of 5cm was stable at 8mur10 degrees Celsius, it could be dug between Grain in Beard and the Summer Solstice in the year of sowing or in mid-June of the following year, without affecting summer sowing autumn crops. Pinellia ternata generally yielded 600,800kg / mu of fresh tubers per mu, with a drying rate of 25%, and dry products of 180kg / mu.
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Brief introduction of fertilization Technology of Pinellia ternata
Perennial herbs of the family Araceae. It mainly produces Henan, Sichuan, Guizhou, Jiangsu, Hubei, Anhui, Zhejiang and other provinces. The medicinal part is rhizome. Pinellia ternata has shallow roots. Warm and humid climate and shady environment, afraid of high temperature, drought and strong light. It is suitable for sandy loam with loose soil and good drainage. Key points of fertilization technology: base fertilizer, applying circle fertilizer 3000-4000kg per 667m2. Topdressing, from late May to early June, when bulbs sprout under the petiole, topdressing 500-1000kg and urea per 667m2
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Leaf spot of Pinellia ternata
In early summer, purple-brown spots appeared on the diseased leaves, and there were many small black spots on the disease spots in the later stage. When the disease was serious, the disease spots covered the whole leaves, causing the leaves to curl and scorch and die. Methods of prevention and treatment: at the initial stage of the disease, spray 1 Vera 120 times Bordeaux solution or 65% Dyson zinc 500 times solution, once every 7 days for 2 times 3 times.
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