Dazeshan grape is produced in Dazeshan Town, Pingdu City, Shandong Province. It is one of the famous specialties in Shandong Province and has a history of cultivation for hundreds of years. Dazeshan grape has unique flavor and good quality. The ear is large and full, the color is bright, the skin is thin and tender, and the taste is pleasant. There are more than a dozen varieties widely cultivated, and rose fragrant cultivation is the most.

Dazeshan grape quality technical requirements (1) variety. Middle-ripening varieties of rose fragrant, golden finger, late-maturing variety Zexiang, red earth. (2) Site conditions. The soil type is brown soil, the soil texture is sandy soil and gravel soil, the organic matter content is ≥1.0%, and the pH value is between 6 and 8. (3) Cultivation management. 1. Seedling breeding: cuttings are carried out by using branches on the excellent mother plants without quarantine pests and diseases; or the branches are used for grafting grafting seedlings, and the rootstocks are SO4 and Beida. 2. Planting time: mid-November and mid-April. 3. Planting density: The scaffolding does not exceed 6,660 per hectare; the fence does not exceed 4,995 plants per hectare. 4. Field management: (1) Fertilization: Mainly based on decomposed organic fertilizer, the amount of fertilizer applied per hectare is more than 45 tons per year. (2) Watering: Before the germination of the grapes, 10 days before flowering, during the fruit expansion period, and timely irrigation before freezing, the grapes are stopped for 15 days before ripening. (3) Pruning: combining winter shears with summer shears, the results of winter shears are: 7 to 9/m2 of the frame frame, 6 to 8 pieces/m2 of the shelf frame; The square frame has 10 to 12 new shoots. (4) Flower and fruit management: The yield per hectare of mature garden: rose, gold finger, red earth species are controlled within 22.5 tons, and Zexiang is controlled within 30 tons. Bags from 15d to 25d after flowering, bags are picked from 7d to 10d before harvesting; the rest of the varieties need not be picked up, just open the bag under 7d to 10d before mining. 5. Environmental and safety requirements: The use of pesticides, fertilizers, etc. must comply with relevant national regulations and must not pollute the environment. (4) Harvesting. Gold finger and rose fragrant in September, the content of soluble solids reached more than 17%; Zexiang in the middle and late September, soluble solid content of more than 17%, red earth in September and late, soluble solid content 16% can be harvested above. Harvesting takes place on sunny days from 8 to 10 and from 16 to 19 when the climate is cool. (5) Quality characteristics. 1. Sensory characteristics: indicator variety color and panicle type fruit-shaped fleshy flavor rose scent purple red - purple black conical oval meaty slightly crispy juicy thick rose scented gold finger yellow white long conical oval shape, arched fleshy hard and brittle Rock sugar and milk flavor fragrant golden yellow conical oval round fleshy crispy rose scent red earth bright red conical round fleshy hard and crisp sweet 2. Physical and chemical indicators: indicators variety soluble solids content ear weight (g) grain weight ( g) Rose scent ≥ 17% 300-500 ≥ 5 gold fingers ≥ 17% 300-500 ≥ 6 Zexiang ≥ 17% 400-600 ≥ 7 Red Earth ≥ 16% 700-1000 ≥ 123. Safety requirements: product safety indicators must Meet the relevant regulations of the state for similar products.

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Producers within the scope of protection of Dazeshan grape geographical indication products may apply to the Pingdu Municipal Bureau of Quality and Technical Supervision of Shandong Province for the use of the “Special Mark for Geographical Indication Products”, which is approved by the General Administration of Quality Supervision, Inspection and Quarantine.