Deqing Gonggan is a geographical indication certification trademark.

China's No. 1 tangerine, Deqing Gonggan, originates from Deqing County, Guangdong Province. Its fruit is golden in color, has thin and smooth skin, crisp and tender meat, refreshing and residue-free, rich in juice, sweet and delicious, and fragrant. The honey is rich and has a great flavor. This fruit is rich in nutrients, rich in a variety of vitamins, trace elements, minerals, organic acids, etc. It has a great effect in quenching thirst in autumn and winter, and can effectively supplement the nutrients and water needed by the human body. It is recommended by the fruit industry as today's health Fashionable new fruit.

The historical background and origin of Deqing tribute tangerine

Historically, the cultivation of Deqing tribute tangerine began in the Kaiyuan period of the Tang Dynasty and has a history of more than 1,300 years. According to records, during the Shaoxing period of the Song Dynasty, Emperor Gaozong of the Song Dynasty went to Deqing Mansion and tasted Deqing's local specialty citrus. He praised it repeatedly. After that, Deqing citrus was revered as a royal tribute, and the name tribute tangerine came from this. According to expert research, Deqing Gonggan is a natural hybrid between orange and tangerine. Therefore, it combines the beautiful appearance, golden color, and rich flavor of orange with the tender and smooth flesh of tangerine, easy-to-peel skin, refreshing taste without residue, and moderate sweetness. It combines the advantages of sweet orange, candied orange and honey pomelo with excellent taste and refreshing sweet flavor. According to research by geographical economists, Deqing County has a mild climate and unique environment, which is very suitable for the growth of Gonggan. The quality characteristics of Deqing Gonggan and its golden and bright fruit color - Deqing Gonggan is an extremely rare natural hybrid between orange and tangerine. The fruit shape and color are very similar to orange, the fruit shape is dignified (the transverse diameter ), with thin skin (generally less than 2.3mm), golden color, clean and smooth fruit surface; crisp, tender and refreshing flesh - Deqing Gonggan not only has the beautiful appearance of orange, but also has the characteristics of wide-skinned citrus, tender meat and rich juice. Advantages, and the flesh is tender, transparent, crisp, refreshing and residue-free, which is incomparable to other tangerines and oranges;

. Rich honey flavor - Deqing tribute mandarin has a special aromatic honey flavor, which is sweet and delicious. The soluble solids are generally greater than 11% (national standard ≥ 10%), and the total acid content is less than 0.3% (national standard 40.9 %), with a solid-acid ratio as high as 36.7 to 1 (national standard ≥10:0.9). It is a rare high-sugar and low-acid excellent variety today; it has high nutritional and health value - Deqing Gonggan is very nutritious and contains A large amount of organic fructose sugar and organic sterile moisture, rich in a variety of vitamins, organic acids, trace elements, minerals, etc. Nutritionally, it can effectively replenish the body's carbohydrates with organic fructose, and will not increase the body's blood sugar like ordinary sugar. Juice containing a large amount of various nutritional and health-care ingredients can effectively supplement the large amount of water and nutrients needed by the human body in the dry seasons of autumn and winter; it has a high edible rate - Deqing Gonggan has a thin skin and few cores (generally only about 6 pieces). The edible rate of slag is as high as more than 80% (the national standard is more than 70%). The brand and honor of Deqing Gonggan (1) In November 2004, it obtained the national "Protected Origin" registration certification:

(2) In October 2003, Deqing County received the "Chinese Tribute Mandarin" The honorary title of "Hometown";

(3) In November 2004, Deqing County won the honorary title of "Top Ten Counties in China's Citrus Industry";

(4) In 2000 In December, it won the title of "Chinese Famous Fruit";

(5) In September 2002, it won the China Green Food A-level product certification;

(6) In September 2004, it won the title of "Guangdong Famous Fruit" "Provincial Famous Brand Product" title;

(7) In January 2005, it won the honorary title of "Guangdong Province Famous Brand"; (8) In December 2002, it was designated as a special fruit Deqing Gong by the World Guangdong Fellowship Association Therefore, citrus fruits have a far-reaching reputation. Among the current dazzling array of fruits, they are like a concubine of natural beauty. They are fresh and refined, unique and unique. They inherit the noble quality of the royal family in the past and have become the new star of today's fruits and the best among citrus fruits. Necessary growth conditions for Gonggan. The reason why Deqing Gonggan stands out among its peers for its excellent quality is due to the unique geographical environment and climatic conditions of Deqing County: Deqing County is located in the central and western part of Guangdong Province and is a low-latitude area. It has a mild climate, abundant heat, abundant rainfall, and a long frost-free period. The average annual temperature is 22.2°C, the average annual rainfall is 1,434 mm, and the average annual sunshine hours are 1,662 hours. It is surrounded by mountains on three sides, east, west, and north, with a large forest coverage area and beautiful mountains and clear waters. , is adjacent to the Xijiang River with the second largest flow in China in the south, thus forming a microclimate with warm winters and cool summers all year round with a large temperature difference between day and night.

Deqing's mountainous and farmland soils are made of sandy loam. After long-term improvement and utilization by human factors, the soil has become deep, loose and breathable, has good water and fertilizer retention, and is rich in organic matter (1.27-1.94% in dry land, Water (N12% or more), pH value between 4.5-6.5. This unique geographical environment, soil and climate conditions are very suitable for the growth of tribute tangerines, which can not only meet the effective accumulated temperature for the growth of tribute tangerines, but also achieve the right temperature difference between day and night, so that the peel color and tissue softening of tribute tangerines can be achieved. The contents of soluble solids, organic sugars, vitamins, organic acids, trace elements and minerals all reach optimal standards.

The development process and current situation of Deqing tribute tangerine Deqing tribute tangerine is a traditional famous agricultural product in Deqing County and has a long history of cultivation. According to historical records, Deqing was called Duanxi and Kangzhou in ancient times. As early as the Kaiyuan period of the Tang Dynasty, agriculture had been quite developed, with planting as the main industry. Within the county, especially in the current towns of Mawei, Guanwei, and Xinwei, Gonggan and sugar orange are planted in large quantities. After the reform and opening up, especially in recent years, Deqing County has given full play to its scientific and technological advantages in terms of quality, actively sought technical support from scientific research institutes and colleges and universities at all levels, and established a Gonggan virus-free seedling base, purification and rejuvenation center, and preservation center. Processing technology and promotion center, standardized production system and product quality system, and established a 35,000-acre Gonggan green food production demonstration base, vigorously promoted "treating mites with mites" biological control technology, etc., and relied on science and technology to continuously improve the quality of Gonggan ; Moreover, in terms of operation, we follow the direction of agriculture and industrialization, follow the path of market-oriented operation, recruit powerful merchants, and work together to establish a one-stop, integrated business model of tribute tangerine production, preservation, processing, and sales. In order to create "China's No. 1 Tangerine", more than 6 million yuan was invested to build. Several hundred acres of Gonggan parent orchards and standardized virus-free seedling bases, as well as a Gonggan purification and rejuvenation center were established, and the country's first > was established, creating a national-level standardized production demonstration area and 26 provincial, municipal, and county-level standardization The production and standardized management demonstration zone has formulated the "Several Decisions on Strengthening the Production Management of Gonggan, Tangerine and Tangerine to Promote the Sustainable Development of the Industry" and strengthened planting and quality management. We have supported the development of several fruit companies integrating production and distribution and a large number of large production and distribution households, supported the establishment of citrus associations, etc., and used a series of measures to improve the quality and market competitiveness of tribute tangerines. In recent years, our county has held various promotion activities in the Great Hall of the People in Beijing, Diaoyutai State Guesthouse, Shanghai, Northeast China, Northwest China, and Central China in accordance with the concept of creating "China's No. 1 Tangerine". It has also held various promotion activities in the Pearl River Delta, Yangtze River Delta, Beijing It has established more than 130 marketing outlets in more than 50 large and medium-sized cities including Tianjin, the three northeastern provinces, Sichuan, and Chongqing, and has also expanded overseas markets such as Hong Kong, Macao, the Netherlands, the United Kingdom, and Singapore.

At present, there are more than 30,000 farmers in our county, planting 150,000 acres of tribute tangerines and sugar oranges. This year, more than 70,000 acres have been put into production, with a total output of more than 100,000 tons, and an estimated total sales of 400-500 million Yuan, the per capita income of farmers is only more than 1,000 yuan.

Nowadays, our county's Gonggan Shatangji is sold all over the country and is well-known in overseas markets such as Hong Kong, Macao, the Netherlands, the United Kingdom, and Singapore. Celebrities and experts comment on Deqing Gonggan. Deqing Gonggan can be said to be the best among citrus, and it has received rave reviews from all walks of life: - As Timur Awamati, the former vice chairman of the Standing Committee of the National People's Congress, said, "I The master once took charge of agricultural work in my country and traveled all over the country, but he had never tasted such a delicious fruit. Deqing tribute mandarin is delicious and beautiful, sweet and refreshing, no residue, full of water, quenches stagnation and thirst, and cannot be eaten too much. Fire, I feel it is very good for the body." - As Professor Ma Peqia from the Fruit Tree Research Institute of the Guangdong Academy of Agricultural Sciences said: Deqing Gonggan has beautiful fruit shape, golden color, sweet and fragrant, thin skin, few cores, and crispy flesh. It is residue-free, high in sugar and low in acid, and has an excellent taste that is incomparable to other citrus varieties. Its fruit shape, color, juice cell shape and growth shape are similar to oranges, but the sponge layer is thin and the capsules are easy to separate from the peel and capsule. It also has the characteristics of oranges. It combines the beautiful appearance, golden color and richness of oranges. Flavor, aroma and wide-skinned citrus have the dual advantages of tender flesh, easy peeling, delicious residue-free, moderate sweetness, and the refreshing and sweet flavor of grapefruit, combining the advantages of sweet orange, sugar orange and honey pomelo. . It can be concluded that the citrus industry in the 21st century will be the "century of hybrid citrus".

Deqing Gonggan Gonggan was originally a rare farmer's citrus variety in Zhaoqing, Guangdong. Because of its excellent quality, it was named as a tribute to the imperial court in the past. According to research, Gonggan is a natural hybrid between orange and tangerine, and has the dual advantages of orange and tangerine. Deqing is the main origin of tribute tangerine and has a long history of cultivation. It has been cultivated and purified by the people of Deqing for generations and has been passed down to this day.

Deqing Gongtanger has a beautiful shape, golden color, thin skin and few cores, crispy flesh, sweet and fragrant honey, high sugar and low acidity, and rich flavor. It combines the beauty of orange appearance and tangerine The dual advantages of tender flesh and easy peeling are unmatched by other citrus varieties, and it is known as the King of Citrus. According to testing, the average single fruit weight of Deqing tribute tangerine is 120-150 grams, the fruit diameter is 60-65mm, the soluble solids (mainly sugar) is more than 11-13%, the edible rate is more than 76.7-79%, and the solid-acid ratio is as high as 36.7~37.1:1, the total acid content is as low as 0.3-0.35%. It matures around the winter solstice every year and has a long harvest period. It is an excellent fruit during the New Year. This fruit is rich in nutrients, rich in a variety of vitamins, trace elements, minerals, organic acids, etc. It is very effective in quenching thirst in autumn and winter, and can effectively supplement the nutrients and water needed by the human body. It is called today's healthy and fashionable fruit by the fruit industry. Fruit upstart.