Siwuwuyang is a famous “sweet potato” food in Guizhou. It is named because its main producing area is in Sige Township, Panxian County. The four-grained Wuyang base is located in the Wumen prairie scenic spot, which is one of the unique alpine grasslands in China, the mysterious plateau Buddha light, and the peaceful plateau lake. It is favored by tourists; the shape of the artichoke is nearly elliptical, the skin is purple, thin and smooth, and the meat is interlaced with deep purple and light purple. The unique geographical environment and traditional planting methods have resulted in the inclusion of more anthocyanins in the skin layers and pith of the four-grained black scorpion, which are rich in various trace elements such as selenium, zinc and molybdenum. A little bit of flamboyant flowering, sweet and sweet taste, rich in nutrients, seems to tell the story of the four-grained Wuyangyu and the second ridge of Guizhou, the Wumen Prairie...

Technical requirements for the quality of four grains of glutinous rice. I. Variety Local traditional Wuyang glutinous varieties. Second, the site conditions are within the range of 1700 m to 2700 m above sea level; the soil type is yellow brown soil and texture sandy loam; the soil pH is 5.5 to 7.5, the soil thickness is ≥ 30 cm, and the soil organic matter is ≥ 1%. Third, cultivation management Sowing: Sowing from late February to late March. The potato pieces weigh 20 g to 25 g, the seeding density is ≤ 60,000 nests/ha, and the depth is 10 cm to 15 cm. 2. 3. Fertilization: Apply organic fertilizer ≥4,500kg/ha per year. 4. Environmental and safety requirements: The use of pesticides, fertilizers, etc. must comply with relevant national regulations and must not pollute the environment. 4. Harvesting Most of the stems and leaves are harvested from mid-July to late August. Five, quality characteristics Sensory features: nearly elliptical, diameter 5 cm to 8 cm, thin and smooth skin, black purple skin, dark purple or light purple alternating heart, the entrance slippery but not dry, has a strong sweet back. 2. Safety and other quality technical requirements: Product safety and other quality technical requirements must comply with relevant national regulations.

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Producers within the scope of the production area of ​​Wugewuyang can submit an application for the use of the “Special Mark for Geographical Indication Products” to the Quality and Technical Supervision Bureau of Panxian County, Guizhou Province, which is reviewed by the Guizhou Provincial Bureau of Quality and Technical Supervision and announced after approval by the General Administration of Quality Supervision, Inspection and Quarantine. . The inspection mechanism of the four-grained artichoke is selected by the Guizhou Provincial Bureau of Quality and Technical Supervision in the inspection institutions that meet the qualification requirements.