The origin of Dingzhuang grape is located in Dingzhuang, Maoshan Town, a state-level 5A-level scenic spot in the national peak of Qifeng Junxiu. Dingzhuang grape, which enjoys the reputation of “fruit pearl” and “water of life”, is extremely rich in nutrients. It contains more than 10 kinds of amino acids and proteins, minerals, natural polymeric phenol, monoglucoside and double glucoside and various nutrients. .

Dingzhuang grape adopts the cultivation mode of the famous grape expert Mr. Hayakawa of Japan, and combines the Japanese grape cultivation technology with the natural environment factors such as water shortage in the hilly mountainous areas of China, dry land on the slopes, easy to dry and easy to dry, and the grape cultivation methods that have been summarized over the years. The fruit of the grape is different, and its main quality indicators such as sugar content and coloration rank among the international leading level. Dingzhuang grapes started from the 2 acres of Jufeng grapes in 1990 and continued to explore and develop. In 1993, the famous Japanese grape expert Hayakawa was invited to give guidance to the Japanese early Sichuan cultivation model with high technology content. In 2003, the Dingzhuang Zachuan grape base was named as a pollution-free agricultural product base by the provincial government. In 2005, it was named by the National Standards Committee as the national pollution-free Zaochuan grape standardization demonstration area.

Dingzhuang grape quality technical requirements First, the variety of giant peaks, summer black, sunshine roses, gold fingers. Second, the site conditions soil type is yellow brown loam, soil texture is medium loam soil, soil pH value 6.5 ~ 7.5, groundwater level ≤ 0.8m. Third, cultivation management Seedling cultivation: grafted seedlings or cutting seedlings are used, and grafted rootstocks of grafted seedlings are 5BB, SO4, 3309, and Beida. 2. 3. Flower and fruit management: through the arrangement of flower spikes, sparse spikes and granules, the whole garden is bagged, and the yield is controlled from 1000kg to 1500kg per 667m2 (mu). The treatment method of summer plant growth regulator is the first treatment. When the new shoot leaves 7 leaves to 9 leaves, the flower ear is immersed in 20% gibberellic acid 12.5ppm solution, the second treatment, and the flowering in the flowering stage is 20 % gibberellic acid 40ppm solution, after 10 days to 14 days, ear immersion 20% gibberellic acid 40ppm plus 0.1% chlorpyrifos 5ppm solution for the third treatment; sunlight rose plant growth regulator treatment method is the first treatment, in When the spikes are 100% flowering, the spikes are immersed in 20% gibberellic acid 25 ppm plus 0.1% chlorpyrifos 5 ppm solution, and 20% gibberellic acid 25 ppm solution is immersed in the ear for 10 days to 14 days. 4. Fertilization: Apply 1000kg~2000kg of fully fermented organic fertilizer per 667 m2 (mu) per year. 5. Environmental and safety requirements: The use of pesticides, fertilizers, etc. must comply with relevant national regulations and must not pollute the environment. Fourth, harvesting Jufeng grape harvesting period: from early August to late September. 2. 3. Sunshine Rose Grape Harvesting Period: from mid-August to early October. 4. Gold finger grape harvesting period: from early August to early September. V. Quality characteristics 1. Sensory characteristics: The variety of indicators of the giant peaks are uniform and uniform, the fruit is oval, purple, easy to peel, thick and juicy, sweet and slightly sour. The summer black ear is uniform and uniform, the fruit is round, purple and black, the meat is tight and crisp, sweet and slightly sour. Sunshine rose spikes are neat and uniform, the fruit is oval, yellow-green, thin and crisp, with a strong aroma and a rose scent. The golden finger granules are neat and uniform, the fruit granules are shaped like fingers, yellow-green, and the meat is juicy, sweet and refreshing, and has a sugary taste. 2. Fruit / (%) ≤ 2222 threshing / (%) ≤ 4444 mildew fruit can not be detected 3. Safety and other quality technical requirements: product safety and other quality technical requirements must comply with national regulations.

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Producers within the scope of Dingzhuang grape production area may submit an application to the Jurong Municipal Market Supervision Administration for the use of the “Special Mark for Geographical Indication Products”, which shall be reviewed by the Jiangsu 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 Dingzhuang Grape is selected by the Jiangsu Provincial Bureau of Quality and Technical Supervision in the testing institutions that meet the qualification requirements.