Iced sugar orange, special citrus in Qingxin County, Guangdong Province. The fruit is sweet, tender, juicy, slag-free, non-nuclear and less nuclear. After eating, the cheeks are fragrant, and the aftertaste is endless and famous. It is sold at home and abroad.

[Landmark Geography] Qingxin County is located in the northwest of Guangdong Province and is connected to Qingyuan City. It is a transitional zone between the Pearl River Delta and the mountainous areas of northern Guangdong. Facing the Pearl River Delta, it relies on the vast inland provinces and is closely connected with Qingyuan City. It is 40km away from the newly-built Guangzhou Huadu International Airport, 68km away from Guangzhou, and less than 200km away from Hong Kong and Macao. Qingxin County is the main logistics distribution channel connecting the Pearl River Delta to the mountainous areas of northern Guangdong. The county has a total area of ​​2,353 km2, a total population of 686,000, and a total agricultural output value of 3.276 billion yuan. The county has 8 towns and 1 forest farm. The county is located between 23°32′46u0026quot;—24°19′04u0026quot; north latitude, 112°23'41u0026quot;-113°20'55u0026quot; east longitude. Located in the central part of Guangdong Province, the middle and lower reaches of the Beijiang River is a transitional zone between the Pearl River Delta and the mountainous areas of northern Guangdong. The county has a total area of ​​2,353 km2, with Yingde and Qingcheng in the east, Guangning and Sihui in the west, Yangshan in the north and Qingcheng in the south. The county town of Taihe is 68km away from Guangzhou. 40km from Guangzhou New Airport. The county is about 85km long from north to south and about 55km wide from east to west. The northern part is a typical limestone mountain range, with the middle and low mountains in the middle and the plains in the south. The highest peak is the Pingkeng Peak between Longjing Town and Xitan Town, with an elevation of 1181m. Qingxin County is the first tourist strong county in Guangdong and one of the first 17 counties in China's strong tourism counties. For example (Fig. 4), the Pine Forest Ecological Park and the Observation Deck are all tourist attractions that attract tourists. [Culture background] The name of the sugar orange is October, which is named after its sweet taste like rock sugar. It is a famous and excellent fruit product. According to the first batch of university textbooks after the restoration of the college entrance examination system in the last century, the "Citrus Cultivation" prepared by the South China Agricultural College in 1977 records that October orange is also known as iced sugar orange. Since then, in the 1990s, most areas of Guangdong Province were named after the sugar candy. popular. It can be seen that the fresh iced sugar orange has a historical root and has a high reputation. Qingxin County iced sugar orange was first planted in the paradise forest farm of Feilaixia Town before the 1970s. In 1970, Huang Chisheng, an engineer from Qingtian County Paradise Forest Farm, and others, through the preliminary success of the research on the selection and cultivation techniques of iced sugar oranges, the Tianshan people began to walk out of the forest farm to start the orange farm, which led the other towns in the county to plant fresh iced oranges. Therefore, a good pattern of standardized planting and industrialized operation will be gradually formed. Since 1990, the sugar oranges produced in Qingxin County have been gradually sold under the name of fresh iced oranges. Fresh iced oranges are also well known for their excellent quality. The sugar candies produced by the farmers in Qingxin County are sold under the name of fresh iced sugar oranges, with Shanghai and Hangzhou in the east of China being the largest sales area (about 50% of the total sales). Today, orange is a common name for "orange", often associated with "citrus" as "citrus." "Orange" was often mentioned and praised by scholars in ancient times. In his early genius poems, Qu Yuan had a famous article, "Orange", which was different from the other forms in the "Nine Chapters". The whole story of "Orange" was written in four words and three words. The songs of the oranges, the things that are pleasing, and the self-sufficiency, praise the orange trees to express their noble exercises. [Cultural accumulation] Orange is also me, I am also orange. Orange is given by the creation, the essence of the heavens and the earth, the generation of Jiamu, the green leaves are separated, and the gold is shining. It is just right, selfless, self-satisfied but not in the world, only to show its own inner charm for its nature. With such a high quality, who can compare with it? I am so self-satisfied, but who can know it? Qu Yuan wrote the following famous articles through the proprietorship: "Orange", after the Qu Yuan, the Emperor Jiashu, the orange 徕 徕. I was ordered not to move, and I was born in the South. Deep and difficult to migrate, more ambiguous. Yuan Ye Su Rong, they may like it. Once upon a time, the spines are round and round. Qinghuang chowder, the article is rotten. The fine color is white, and the class can be used. It is advisable to repair, not ugly. Muir’s childhood is different. If you don't move independently, you can't be fond of it. Deep and difficult to migrate, there is no need to ask for it. Su Shi is independent. Horizontal but not rogue. Be careful and self-concerned. Bingde is selfless and towering. May the old and thank you, and the long friends. Shu is not kinky, and it is reasonable. Although the age is young, he can be a teacher. The line is better than the Bo Yi. [Brand construction] Under the guidance of the relevant departments of Qingxin County, since 1990, the sugar oranges produced in Qingxin County have been gradually sold under the name of fresh iced oranges. The fresh iced oranges are famous for their excellent quality. When people mention fresh, they naturally think of fresh iced oranges. The sugar candy oranges produced by the farmers in Qingxin County are sold under the name of fresh iced oranges. Among them, Shanghai, Hangzhou and other regions in East China are the largest sales places (about 50% of the total sales), and they are very popular and enjoyed locally. High visibility. In 2001, the fresh ice candy in Feilaixia Town was designated as the “One Township and One Product” development project by the Qingyuan Municipal People's Government. In 2004, the fresh ice candy was approved by the Guangdong Provincial Department of Agriculture to obtain the “Certificate of Certification for Pollution-free Agricultural Products”; in 2005, Feilaixia Town was awarded the “Frozen Orange” professional town of Guangdong Province by the Guangdong Provincial Department of Science and Technology. At the same time, fresh iced oranges Through the rigorous testing and evaluation of the Agricultural Products Quality and Safety Center of the Ministry of Agriculture, the company obtained the “Certificate of Origin of Pollution-free Agricultural Products”. In the 2nd China South China Agricultural Expo, “Fresh Sugar Oranges” was awarded “Golden Agricultural Products”; in 2006, “Qingxin County Rock Sugar” The Orange Agricultural Standardization Demonstration Zone passed the provincial inspection and acceptance, and the China Economic Forestry Association awarded the title of “China's Hometown of Iced Sugar Orange” in Qingxin County. The Feilaixia Town Ice Confectionery Association was awarded the advanced unit of the National Science Popularization Village; The State Forestry Administration has identified it as one of the “Economic Forest Industry Demonstration Counties” (Ice Sugar Orange), and was named as “China's High Quality Ice Tangerine Base County” by the China Fruit Circulation Association.

Technical requirements for quality of fresh iced oranges (1) Cultivars. Iced sugar orange (scientific name October orange). (2) Site conditions. The soil is alluvial soil or red soil, yellow loam soil, soil thickness ≥ 50 cm, soil organic matter content ≥ 2%, pH value 5.5 to 6.5. (3) Cultivation management. 1. Seedling: Use red orange, sour orange, and alfalfa as rootstocks to pick up the grafts from the excellent female trees without viruses. 2. Colonization: The planting density of new species of orchard is ≤75 per 667 square meters, and the old orchard in dense planting should pay attention to reasonable pruning and timely cutting. 3. Soil management: In the second year after the planting of dryland and hillside orchards, the soil will be deep-turned and re-constructed, and will be carried out after the annual ripening of the autumn shoots until the whole garden is excavated; the paddy orchard will be soiled once a year in winter. 4. Drainage and irrigation: According to the water requirements of “enhanced irrigation and drainage in spring and summer, drought and irrigation in autumn, and water control in winter”. 5. Fertilization management: the implementation of soil testing and formula fertilization, mainly organic fertilizer, appropriate with inorganic fertilizer, the application of organic fertilizer more than 5 kg per plant throughout the year. 6. Plastic pruning: The young tree pays attention to the trunk structure; the adult tree is trimmed into a ventilated and translucent round-headed canopy by means of bud, short cut, and thinning. 7. Environmental and safety requirements: The use of pesticides, fertilizers, etc. must comply with relevant national regulations and must not pollute the environment. (4) Fruit harvesting. The fruit reached the mature characteristics of the variety, and the soluble solid matter ≥ 11.5% was harvested by the “one fruit and two scissors” method. (5) Quality characteristics. 1. Sensory characteristics: The fruit is even and full, the fruit shape is flat; the peel is orange-red, shiny, the skin is thin, the oil cells are obvious; the fruit flavor is sweet, juicy, crisp, and slag. The rate of no nuclear is over 95%. 2. Physical and chemical indicators: fruit transverse diameter 30 mm to 56 mm, edible rate ≥ 65%, pulp soluble solids ≥ 12%, total acid ≤ 0.55%, solid acid ratio ≥ 21.8. 3. 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 fresh ice candy orange geographical indication products may apply to the Qingxin County Quality and Technical Supervision Bureau of Guangdong 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.