Jiaonan Blueberries

Jiaonan Blueberries

Jiaonan Blueberries are a geographical indication agricultural product.

　　Jiaonan City has a temperate monsoon climate with distinct seasons. The naturally acidic soil developed from granite parent material provides excellent growing conditions for blueberry cultivation. Since the early 1980s and 1990s, Jiacheng Company has collaborated with Japan’s Global Trading Company to introduce blueberry varieties from Japan and Jilin Province, conducting sporadic planting trials in Jiaonan that proved successful. The blueberries’ cold resistance, tolerance to poor soils, large fruit size, and sweet taste quickly won popularity among locals. Small-scale cultivation began in 1995. In 1999, a research team led by China’s top blueberry expert Li Yadong, in partnership with Japan’s Global Trading Company, pioneered large-scale industrial blueberry development in Jiaonan. In 2000, Qingdao Jiacheng Food Co., Ltd. invested in a 600-acre blueberry farm in Jingu Village, Baoshan Town, marking the start of commercial-scale blueberry cultivation in China—the first of its kind—and ushering in a new era of large-scale production. Jiaonan thus earned its reputation as the “Hometown of Blueberries” and was hailed by national blueberry industry experts as the “Cradle of Blueberry Industrialization in Northern China.”

　　From less than 100 acres at the time of introduction in 2002 to over 20,000 acres today, Jiaonan’s blueberry cultivation area has achieved a “triple leap” in just under a decade. Annual production now reaches 1,200 tons, generating an output value of 96 million yuan. As the largest and most industrialized blueberry production area in China, the so-called “Queen of Fruits” has become wildly popular across Jiaonan.

　　Superior climatic conditions and a naturally unpolluted growing environment have laid the foundation for successful blueberry cultivation. Beyond that, Jiaonan’s determination and ambition in developing its blueberry industry are equally noteworthy. The local government has established premium demonstration farms, cultivated high-quality varieties, and upheld a production model of “enterprises + cooperatives + bases + farmers,” focusing on building the public brand “Jiaonan Blueberries” to promote branded development across the sector.

　　Jiaonan is famed for its stunning mountain-and-sea landscapes and the ancient history of Langya. With late springs and cool autumns, no severe summers or winters, plus acidic soil and a cool maritime climate, the region is highly suitable for blueberry growth—approximately 180,000 acres are appropriate for cultivation. By the end of 2010, Jiaonan had developed 23,900 acres of blueberry plantations, including over 7,000 acres of harvestable land, yielding 1,200 tons annually and generating 96 million yuan in output value. It remains the country’s largest and most industrialized blueberry production area.

　　In developing its blueberry industry, Jiaonan has actively focused on core areas centered around Zhangjialou, Zangnan, Baoshan, and Liuwang. It has vigorously advanced the construction of three premium thousand-acre demonstration farms—Wolin, Longhui, and Baoshan—to drive clustered development in surrounding areas and promote scaled growth across the sector.

　　Alongside scaled development, Jiaonan has further strengthened the selection, introduction, demonstration, and promotion of superior new blueberry varieties. A number of locally suitable high-quality cultivars have been introduced, represented by “Duke,” “Bluecrop,” and “Northland.” The city has also established long-term collaborations with institutions such as Jilin Agricultural University and related research bodies. Through practical experience, it has developed and refined a comprehensive set of technical guidelines for blueberry seedling propagation, cultivation, and fruit processing. The region actively promotes standardized blueberry production and enforces rigorous quality control throughout the supply chain.

　　To foster industrialized blueberry development, Jiaonan adheres to the “enterprises + cooperatives + bases + farmers” production model. Relying on leading blueberry enterprises such as Wolin, Longhui, Jiacheng, Huihai, Baolin, and Baokang, the city vigorously develops tissue-cultured seedlings and deep-processing of blueberry products. Meanwhile, through 11 cooperatives—including the Qingdao Fumin Blueberry Professional Cooperative—it strongly promotes farm-to-supermarket connections and aligns production with market demand.

　　As the blueberry industry thrives, the Jiaonan government is committed to building the public brand “Jiaonan Blueberries” and advancing branded development. The government actively guides production enterprises and bases to apply for “Three Products and One Mark” (organic, green, pollution-free, and geographical indication) certifications. Currently, 21 blueberry products in the city have obtained organic, ISO9000, and GAP certifications. Four branded blueberries—“Wolin,” “Nongyuancaizhu,” “Huihai,” and “Healthy Farm”—have earned international organic food certification. “Wolin Blueberries” were named one of Qingdao’s Top Ten Famous and High-Quality Agricultural Product Brands, with growing product recognition and market competitiveness.

　　Geographic Scope

　　The protected geographic indication area for Jiaonan Blueberries includes parts of Jiaonan City such as Zhangjialou, Baoshan, Dacun, Liuwang, Haiqing, Zangnan, Liwuguan, Dachang, Langya, Poli, Tieshan, Wangtai, Jiaohe Economic Zone, Binhai Subdistrict Office, Zhuhai Subdistrict Office, Yinzhu Subdistrict Office, Resort Area, Jimiya, and Lingshanwei Subdistrict Office. This covers the Zhushan, Tieshan, and Zangma Mountain ranges across 19 towns (subdistricts, zones), encompassing 336 administrative villages. The area spans from Yangqiling Village in Lingshanwei Subdistrict Office in the east, to Dongcaijia Village in Haiqing Town in the west, to Xiao Guanzhuang Village in Haiqing Town in the south, and to Fajiazhuang in Wangtai Town in the north. Its geographic coordinates are 35°35′–36°08′ N latitude and 119°30′–120°11′ E longitude. The total area is 1,577 hectares, with an annual yield of 5,000 tons.

　　Product Quality Characteristics

　　1. External Sensory Features: Jiaonan Blueberries typically weigh between 0.5–2.5g, with maximum fruit weight up to 5g. The fruit diameter ranges from 8mm–16mm. The berries are bright blue with even bloom, flattened-round in shape, small and dry calyx scars, large size, high sugar content, good storability and transportability, high pigment and dry matter content, pleasant sweet-tart flavor, and a refreshing aroma—ideal for fresh consumption. 2. Internal Quality Requirements: Soluble solids ≥6% (test result 9.9%); total acid 0.05–0.70% (test result 0.63%); total sugar 9–15% (test result 9.9%); iron ≥4 mg/kg (test result 12.8 mg/kg); zinc ≥1 mg/kg (test result 2.2 mg/kg); calcium ≥5.5 mg/100g (test result 14.1 mg/100g). 3. Safety Requirements: Product safety must meet national standards for similar products. Key safety criteria are based on GB/T19630.1-2005 Organic Food (Production); GB/T19630.2-2005 Organic Food (Processing); GB2762 Maximum Levels of Contaminants in Foods; GB2763 Maximum Residue Limits for Pesticides in Foods; and Announcement No. 199 of the Ministry of Agriculture of the People’s Republic of China.