Dingxi City is a typical Liangzhugou area on the Loess Plateau. The land is barren, dry and rainless. It is a miraculous rise in the potato industry in such a barren place, rewriting the history of “one party can't support one person”. In the Ming Dynasty, the Jinshi was introduced to Dingxi by Jinshi, and it was planted for more than 400 years. After long-term adaptive selection and continuous upgrading of the varieties, the potato is more suitable for the natural climate of Dingxi. The local people make full use of the local natural conditions, in the seedling breeding of Dingxi potato virus-free seed potatoes, using the method of breeding alpine isolation seed, low production cost, good product quality, protein, starch, vitamins and crude fiber and other nutrients Gao is a health food that is popular among the masses and has strong market competitiveness.

Anding City, Dingxi City is located in the confluence of the Qinghai-Tibet Plateau, Mengxin Desert and Southeast Monsoon Region. It is a semi-arid agro-climatic zone with an altitude of 1700-2580 meters and is located in the Erhan Eryin District. Affected by topography and altitude, spring winds and heavy rains are less, cold and warm, and cold and cold; summer is mild and cool, rain is concentrated, and there are many floods; autumn is cool, rainy, cloudy and foggy; winter is windy and cold, dry and snowless, sunny . Overall, the climate in Anding District is cool, the soil is deep, the soil is rich in strength, rich in potassium, sufficient light, large temperature difference between day and night, less annual precipitation, mainly concentrated in 7, 8, and three months, with potato tuber swelling The period coincides, the rain and heat are the same, it is very suitable for the growth of Dingxi potato, and it has the unique natural conditions for developing the potato industry. Due to the specific natural climate and farmland environmental conditions, the potato produced in Dingxi is large, high quality, white, round, smooth potato skin, mellow taste, high dry matter content, storage and transportation. It is the production of various potato starch and its products. Good quality raw materials and fresh food for export. After field visits by many well-known experts at home and abroad, it is believed that potato is not only one of the preferred crops for Dingxi cultivation, but also the best crop for adapting to the market and developing characteristic industries.

Dingxi potato quality technical requirements I. Variety Qingshu No.9, Zhangzhangshu No.8, Zhangzhangshu No.14, Xindaping, sweet potato series, and fixed potato series. Second, the site conditions are at an altitude of 1640 to 3900 m. The soil type is mainly black loess and loess soil. The cultivated layer is deep, the organic matter content is ≥0.8%, and the soil pH is 5.5 to 7.8. Third, cultivation management 1. Sowing: 10cm soil temperature is stable at 7 to 9 ° C can be sown, generally from mid-April to early May. The potato and potato tubers are ≥25g, and each potato block has 1 to 2 bud eyes, and the seeding density per hectare is 49,500 to 75,000. 2. Fertilization: 15000kg of high-quality farmyard manure per hectare and 750 to 1200kg of potato special fertilizer. 3. Rotation system: It is carried out for more than three years. Fourth, harvesting is generally harvested from mid-September to mid-October. 5. Store in time and store in time to prevent the potato skin from turning green, forced ventilation, avoiding decay, and the temperature during storage is kept at 0 °C to 4 °C, and the relative humidity is about 80%. Sixth, quality characteristics 1. Sensory characteristics: round or oval, shallow bud eyes, smooth potato skin. 2. Physical and chemical indicators: starch content ≥ 16g / 100g, dry matter content ≥ 23g / 100g, potassium content ≥ 350mg / 100g. 3. Safety requirements: Product safety and other quality technical requirements must comply with relevant national regulations.

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Producers within the scope of the Dingxi potato production area may submit an application to the Dingxi City Quality and Technical Supervision Bureau for the use of the “Special Mark for Geographical Indication Products”, which shall be reviewed by the Gansu Provincial Bureau of Quality and Technical Supervision and announced to the General Administration of Quality Supervision, Inspection and Quarantine for approval. The testing organization of Dingxi potato is selected by the Gansu Provincial Bureau of Quality and Technical Supervision in the testing institutions that meet the qualification requirements.