"Leibo Navel Orange" has the unique qualities of large fruit, beautiful fruit shape, thin and smooth skin, high ratio of sugar to acid, fresh and delicious, rich in juice and rich in honey. The country of origin is located in the southwestern edge of Sichuan Province, the north bank of the lower reaches of the Jinsha River, and the eastern section of the Hengduan Mountains. The area along the Yangtze River Valley in Leibo County, Xiaoliangshan District, with fresh air and excellent water quality, is the only planting area in the country with no frost damage and no quarantine pests and diseases. Coupled with the long-term implementation of traditional pollution-free production management technology, it is the best suitable area for the growth and development of green navel orange and the development of green agriculture.

In 1992, Leibo County was listed in the “Sichuan Province Citrus Advantage Zone” as a “premature ripening high quality navel orange production area” for key development and construction. Since then, “Leibo Navel Orange” has won the “Sichuan Provincial Quality Fruit Certificate” for years. In October 1995, at the 2nd National Agricultural Expo, the two varieties of "Newhall" and "Nivelina" selected by Leibo County were awarded the gold medal. In 2002, he obtained the certificate of “Sichuan·West China Famous Agricultural Products”. In 2003, the Leibo County navel orange production base was certified as “the pollution-free agricultural production base in Sichuan Province” by the Provincial Department of Agriculture and the Provincial Academy of Agricultural Sciences. In 2004, the fruit of “Leibo Navel Orange” was awarded the certificate of pollution-free agricultural products of the Ministry of Agriculture. In the 2002, 2004, 2005 Western China Agricultural Expo, won the gold medal three times in a row. In 2006, it was named as “the first county of China's high quality navel orange”. In October 2010, the high score passed the inspection and acceptance of the “National Agricultural Standardization Demonstration Zone”. The growth environment Leibo navel orange is produced in the Jinsha River valley area below 1000 meters above sea level in the administrative area of ​​Leibo County. Its geographical coordinates are 103°23′～103°52′ east, and the north latitude is 27. The climate is dry and hot, the annual average temperature is 18.4 ° C, the coldest month (January) average temperature 6.6 ° C, the hottest month (July) average temperature 25.6 ° C, the extreme maximum temperature 38.8 ° C, the extreme minimum temperature -4.6 ° C, the annual frost-free period is greater than 331 days, the annual sunshine 1260 Hours, annual rainfall of 677mm, average relative humidity of about 65%. It has a drought in winter and spring, a rapid spring temperature rise, abundant sunshine, high effective accumulated temperature, rain and heat in the same season (concentrated in May-October), relatively low air humidity, large temperature difference between day and night, and no special major climatic resources such as severe weather. In addition, the main soil-forming materials in this area are basalt, sand shale, tuff and other weatherings, river alluvial deposits, and alluvial soils, mainly red soil, purple soil, new alluvial soil, etc., with a pH of 6-8.2. The soil contains sandstone, the texture is sandy, the soil layer is loose, the water is permeable, the groundwater level is low, the mineral nutrient is rich, especially the phosphorus content is rich. Product Features 1. Fruit shape characteristics: fruit shape is correct; fruit top has umbilical cord, bright umbilical cord or dark umbilical; uniform orange red, shiny; fine oil cell; 2. flavor: fine slag, crisp and refreshing; rich in juice, acid Sweet and concentrated; aromatic rich; 3. Physical and chemical indicators: fruit shape index 1.1±0.1; soluble solids 12%-14%; acid content 0.42%-0.6%; sugar content 9%-11%; solid acid ratio 20 %-31%. Nutritional value Leibo navel orange is bright, sweet and sour, and has a neat appearance. It is rich in vitamin C, calcium, phosphorus, potassium, beta-carotene, citric acid, hesperidin, and aldehydes, alcohols, and alkenes. Drinking 3 glasses of orange juice a day can increase the body's high-density lipoprotein (HDL) levels, thereby reducing the risk of heart disease. Regular consumption of oranges can effectively prevent gallbladder disease in women. The smell of oranges helps to relieve people's psychological stress and helps women overcome nervousness. Eating some oranges or drinking orange juice during the medication can increase the body's absorption of the drug, which makes the drug more effective. Applicable people and the right amount Everyone is suitable for eating, one day at a time, no more than three.

Technical requirements for quality of Leibo navel orange (1) Variety. Newhall, Nevelina. (2) Site conditions. Within the protected area, the altitude is 381 m to 900 m, the soil type is red soil, purple soil and new alluvial soil; the soil texture is sand, the soil is loose and the permeability is good; the soil thickness is more than 40 cm, the soil pH is 6 to 8.2, the soil Organic matter content ≥ 1%. (3) Cultivation management. 1. Seedling breeding: grafting and breeding of rootstocks such as alfalfa, red orange and orange. 2. Planting: Planting in spring: before germination from late January to late February; planting in autumn: from late September to early October; nutrition bag seedlings can be planted in all seasons. Planting density: ≤1200 plants per hectare. 3. Fertilization: mainly organic fertilizer, applying ≥30 tons of decomposed organic fertilizer per hectare per year. 4. Flower and fruit management: thinning or thinning the fruit at a ratio of ≥50 to 1. 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. The harvesting time is after November 20th of each year, with the full coloration of the fruit surface as the standard. (5) Quality characteristics. 1. Sensory characteristics: the fruit is extra-large, the fruit shape is beautiful, the skin is thin and smooth, the sugar and acid ratio is high, the sweet and delicious, the juice is rich, and the unique quality is rich in honey. 2. Physical and chemical indicators: variety name soluble solids (%) total acid amount (g / 100ml) solid acid than edible rate (%) fruit shape index single fruit weight (g) Newhall ≥ 130.4 ~ 0.6 ≥ 25 ≥ 731.1 ± 0.1≥300柰Vilina ≥110.5～0.7≥20≥711.1±0.1≥3303. Safety requirements: Product safety indicators must meet the relevant regulations of the state for similar products.

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The producers of the Leibo navel orange geographical indication product protection production area may submit an application for the use of the “Special Mark for Geographical Indication Products” to the Quality and Technical Supervision Bureau of Leibo County of Sichuan Province, which is subject to the examination by the Sichuan Quality and Technical Supervision Bureau and is subject to the national quality inspection. The General Administration announced the approval. The legal inspection agency of Leibo Navel Orange is designated by the Sichuan Provincial Bureau of Quality and Technical Supervision.