"Citrus" is a business card of Zhongxian County. Zhongxian County is known as the “Orange City” because it is located in the hinterland of the Three Gorges reservoir area and is rich in citrus. The orange juice produced in Zhongxian County was also presented to the state banquet and walked out of the "international fan."

Creating a “one heart, three gardens and one base” in the China Citrus City in Xinli Town, Zhongxian County is just a microcosm of the development of the citrus industry in Zhongxian County. In recent years, Zhongxian has focused on building China Citrus City, and has built it into the world's first boutique park that will display citrus seedlings, variety exhibitions, specimen display, processing juice and fresh fruit processing, and integrate green ecological agriculture, citrus cultivation and processing. A leisure and holiday resort that combines entertainment and beautiful pastoral scenery. At present, China Citrus City has built the Three Gorges Citrus Engineering Technology Center, Container Detoxification Citrus Seedling Breeding Center, High Standard Citrus Demonstration Park, Citrus Expo Park, Tourism Resort Center, Water Amusement Center, Tourism Landscape and related supporting facilities, etc. The development of citrus industry in Zhongxian County. The 20,000-acre area surrounds the orange forest next to the core area of ​​Citrus City. The spring fragrance is plentiful and the autumn is fruitful. It is also a great place for tourists to come and relax. The County Cultural Committee conducted a survey on the reasons for “foreign tourists coming to Zhongxian County” and found that 65.3% of tourists were attracted by the China Citrus City tourism brand, and “production, processing, sales, research, learning, and travel” of Zhongxian Citrus Industry and The complete industry chain “from one seed to a glass of orange juice” is of great interest. At present, Zhongxian County has built a 350,000-acre standard orchard base, introduced 3 leading enterprises in citrus processing, and built 8 production lines of fresh fruit processing, concentrated juice and fresh cold orange juice. The annual output of citrus in Zhongxian County has reached 334,000 tons, achieving an annual comprehensive output value of 2.9 billion and an annual processing capacity of 200,000 tons. The 220,000 Zhongxian people are engaged in the industry related to the citrus industry in Zhongxian County. Zhongxian Citrus allows the majority of local people to achieve income and wealth. The report of the 19th National Congress of the Communist Party of China proposed that China should achieve ecological and environmental protection development For a long time, Zhongxian has been based on its own advantages in planting citrus for more than 2,000 years, vigorously developing the citrus industry, and has made the citrus industry embark on a green development path through various means. As the citrus core area of ​​Chongqing and the national citrus demonstration area, Zhongxian County has already built 350,000 mu of standardized citrus base orchards, of which 220,000 mu are located on both banks of the Yangtze River, and the forest coverage rate on the banks of the Yangtze River reaches 70%. However, processing one ton of citrus usually produces half a ton of citrus slag. Qi Qilin, deputy director of the Orchard Bureau of Zhongxian County, told reporters that in the past, these pomace were directly landfilled in farmland, causing pollution to the environment. In order to protect the environment, and at the same time extend the Zhongxian citrus industry chain, Paisenbai, Bofuwen and other processing enterprises to build organic fertilizer and citrus feed production lines. In addition, Zhongxian County also introduces deep processing enterprises for slag, extracts useful components of citrus peel, and produces high value-added products such as hesperidin and pectin. The citrus organic fertilizer replacement fertilizer project also took root in Zhongxian County. The 30,000 mu of citrus, which is the main body of citrus cultivation, will no longer use chemical fertilizer, instead adopt “green fertilizer + organic fertilizer + formula fertilizer”, “organic fertilizer + formula fertilizer”, “natural grass + organic fertilizer + formula fertilizer” and “fruit”. Four modes, such as marsh-animals, focus on improving the quality of citrus in Zhongxian County.

Technical requirements for citrus quality in Zhongxian County (1) Variety. Jin Orange, Olinda, and Early Gold. (2) Site conditions. In the low mountain valleys with an altitude of ≤550 meters in the protected area, the soil texture is clay, loam, gravel soil, sandy loam soil, soil thickness is more than 60cm, soil pH is 5.5 to 7.0, and soil organic matter content is ≥1.5%. (3) Cultivation management. 1. Breeding of seedlings: Using the orange or clam shell as the rootstock, harvesting the scion grafting from the mother plants without virus or quarantine pests and diseases. 2. Colonization: The colonization time is from 2 to 10 months, and the number of plants per hectare is ≤ 675. 3. Fertilization: Apply organic fertilizer ≥75000kg per hectare. 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 and storage. The soluble solids of early gold and Olinda fruits were harvested more than 11.0%; the soluble solids of Jin orange fruit were harvested more than 11.5%. Storage at room temperature is generally no more than 30 days, and storage at low temperatures does not exceed 60 days. (5) Quality characteristics. 1. Sensory characteristics: Project indicators early Jinjin Orange Olinda fruit shape oval round oval shape color orange red orange red orange yellow fruit surface is smoother and smoother than smooth orange flesh, crisp and tender slag, sweet and sour moderate. Orange-red, crisp and tender slag, moderately sweet and sour. Orange, sweet and sour. 2. Physical and chemical indicators: project indicators early Jinjin Orange Olinda soluble solids (%) ≥ 11.0 ≥ 11.5 ≥ 11.0 titratable acid (calculated as citric acid) (g / 100ml) 0.6 ~ 0.90.6 ~ 0.90.6 ~ 0.9 solid acid ratio 12～2013～2012～20 single fruit weight (g) 140～180190～230170～210 edible rate (%)≥72≥75≥723. Safety requirements: product safety indicators must meet the national correlation with similar products Provisions.

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Producers within the scope of protection of citrus geographical indication products in Zhongxian County may apply to the Zhongxian County Bureau of Quality and Technical Supervision for the use of “Special Marks for Geographical Indication Products”, which are reviewed by the Chongqing Municipal Bureau of Quality and Technical Supervision and approved by the AQSIQ. Announcement approval. The statutory testing agency of Zhongxian Citrus is designated by Chongqing Municipal Bureau of Quality and Technical Supervision.