Tongling white ginger, as the best in ginger, has a special growth environment. It not only has unique geographical environment, climatic conditions and geological soil that cannot be replicated elsewhere, but also has unique planting techniques. Tongling white ginger has its own unique quality characteristics compared with other gingers. The formation of this quality characteristic is mainly in addition to the unique natural resources and excellent white ginger varieties, which are mainly related to the original cultivation methods and planting techniques. The relationship, such as the traditional Jiangge storage ginger preservation germination method, ginger shed shading method and sorghum sorghum cultivation method, etc., its cultivation technology has been included in the intangible cultural heritage of Anhui Province Tongling white ginger cultivation skills.

Tongling white ginger, as the best in ginger, has a special growth environment. It not only has unique geographical environment, climatic conditions and geological soil that cannot be replicated elsewhere, but also has unique planting techniques. Tongling white ginger has its own unique quality characteristics compared with other gingers. The formation of this quality characteristic is mainly in addition to the unique natural resources and excellent white ginger varieties, which are mainly related to the original cultivation methods and planting techniques. The relationship, such as the traditional Jiangge storage ginger preservation germination method, ginger shed shading method and sorghum sorghum cultivation method, etc., its cultivation technology has been included in the intangible cultural heritage of Anhui Province Tongling white ginger cultivation skills. Geographical features Tongling (east longitude 117°42′00′′—118°10′6′′, north latitude 30°45′12′′——31°07′56′′) is located in the southern part of Anhui Province and the south bank of the Yangtze River, with an area of ​​1,249 square meters. Kilometers (of which the urban area is 237 square kilometers). The north and south are about 42.5 kilometers long, and the east and west are about 40.6 kilometers wide. The urban terrain is inclined from the southeast to the northwest, forming a strip zone with a width of about 5 kilometers and a length of 20 kilometers. Tongling has a mild climate and abundant rainfall. Agricultural production is dominated by food and economic crops. Grain crops include rice and wheat; economic crops mainly include white ginger and sesame. Human history Chinese ginger culture has a long history, from the legend of "Zi Jiang Jiang" of Jiang Ziya to the "Ginger not eating more" of Confucius, from Su Dongpo to "Jiang Zhizhi" to Wang Anshi's "Jiang Nengjiang Yu Baixie", and then from Li Shizhen's "Xin and Wu, to evil and evil" to the "Red House" in the book Bai Jiang, this is not a high praise for the white ginger culture. Walking in the streets and lanes of Tongling, and entering the people's homes in Tongling, there is always a special fragrance, which makes people feel bitter and tired. Looking for the scent, I saw the corner of the kitchen table. There were always some bottles and cans, and I couldn’t wait to uncover the lid. The thick ginger fragrance, between the time, had penetrated into my heart and spleen. This is Tongling Baijiang. . Tongling white ginger is named after the white skin of ginger and has good quality. It has the reputation of “Chinese white ginger”. It is a dual-use type of food and medicine and a processed edible type. According to Jindun Publishing House, "High-yield Cultivation of White Ginger" contains: "There are quite a few local varieties in Anhui Province, such as Xuancheng Jiang, Xiuning Yanli Jiang, Qianshan Monkey Jiang, Shucheng Jiang, Linquan Hutou Jiang, etc. However, Tongling Baijiang is the most famous and is a famous specialty in Anhui Province. It is said that when Emperor Qianlong of the Qing Dynasty went down to the south of the Yangtze River, after eating the Tongling sugar ice ginger, he praised "white as snow, bright as ice, sweet and spicy alcohol, and the beauty of ice jade". After eating, there is a sense of "overnight fragrance." The white ginger brand of Tongling Bailing, commonly known as “Datong Jiang” (refers to the original ginger produced in Tongling County, Dongdian and Dongxiang Villages).

Tongling white ginger quality technical requirements (a) varieties. Local native white ginger variety. (2) Site conditions. The soil is deep, the soil thickness is 40cm to 50cm, the soil texture is medium loam or sandy loam soil, loose, aerated and permeable, the calcium carbonate content is 0.6% to 3.5%, the organic matter content is 2.0% to 3.6%, and the soil pH is 7 to 7.5. (3) Cultivation management. 1. Selection: Choose ginger, plump, bright, not cracked, not rotted, not frozen, hard texture, no pests and diseases, no mechanical damage. 2. Sowing: White ginger is taken out from Jiangge (the facility of Tongling's unique storage of white ginger and ginger) in the middle of April every year. It is placed in the indoor air for 3 to 5 days to carry out germination. The ginger is cut according to the density and location of the ginger buds, and the weight of each ginger is 50g to 60g. Planting density: 60,000 to 67,500 plants per hectare. 3. Take the ginger shed: After the end of the white ginger planting, start to set up the shade shelter. It is 1.5m to 1.6m high from the ginger ground, covered with grass or shade net, and shaded by a flat shed. The shading rate is 60% to 70%. 4. Watering: Always keep your face moist during growth. At the same time, it is necessary to do a good job of clearing the ditch and draining water so that water can be discharged and the drought is easy to water. 5. Fertilization: 15 to 20 days after the sowing of the white ginger, 500kg to 750kg of rare animal manure can be poured per 667m2 (mu). In the middle of June, apply a “weaning fertilizer”, applying 65kg to 75kg of cake fertilizer per 667m2 (mu), 25kg to 30kg of diammonium phosphate, and 600kg to 800kg of rare animal manure. In mid-July and mid-August, the soil can be combined with the soil, and the “Zhuangjiang Fertilizer” can be re-applied twice. At this time, the topdressing should be based on the manure of the rare animal, and the manure of manure and livestock per 667 m2 (mu) should be 1500kg to 2000kg. 6. Environmental and safety requirements: The use of pesticides, fertilizers, etc. must comply with relevant national regulations and must not pollute the environment. (4) Harvest time. Fresh ginger will be harvested in mid-September every year and will end in late October. (5) Raw material quality requirements. 1. Sensory requirements: The surface of fresh ginger is smooth, the ginger is full and full, and the aroma is rich. The ginger skin is milky white to pale yellow, and the whole piece is more than 200g. 2. Water content: 92% to 95%. (6) Processing. 1. Select the fresh and tidy fresh ginger, first wash the sediment and the outer layer of rough skin, then use the knives to scrape the skin in the crack of the ginger block, wash it with water for 1 to 2 times, and dry the surface of the ginger. The ginger pieces are cut into pieces and can be marinated in a tank (pool). 2. When entering the tank (pool), first sprinkle a layer of salt on the bottom of the tank (pool), sprinkle 20kg to 25kg per 100kg of fresh ginger, and then put a layer of ginger to sprinkle a layer of salt. Spread the salt evenly. At the same time, sprinkle some concentrated salt water to promote the rapid and uniform penetration of salt into the ginger. 3. After 1 to 2 days into the tank (pool), the surface of the ginger is soft and the volume is reduced, and the marinade appears in the tank (pool). At this time, you should turn the tank (pool) once a day. After 15 days of salting, stop turning the tank (pool), compact and compact, seal the cylinder head, and store in a cool and dry place (pool) for reprocessing. . (7) Quality characteristics. 1. Sensory requirements: white and yellowish, crisp and tender, less slag, rich aroma, slightly spicy. 2. Physical and chemical indicators: Carbohydrate u0026gt; 2.3%, crude protein u0026gt; 1.3%, iron u0026gt; 8.5 mg, gingerol u0026gt; 3.3 mg per 100 g of Tongling white ginger. 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 Tongling Baijiang Geographical Indication Products may submit an application to the Quality and Technical Supervision Bureau of Tongling City, Anhui Province for the use of “Special Marks for Geographical Indication Products”, which shall be reviewed by the Anhui Provincial Bureau of Quality and Technical Supervision and announced by the General Administration of Quality Supervision, Inspection and Quarantine. Approved. The legal inspection agency of Tongling Baijiang is designated by the Anhui Provincial Bureau of Quality and Technical Supervision.