Shaodong Yuzhu, also known as the tail ginseng. Shaodong County has a long history of production and is the hometown of Yuzhu in China. Polygonatum odoratum has the functions of lowering blood pressure, lowering blood fat, improving myocardial ischemia and relieving the formation of atherosclerotic plaque, and has a good preventive and therapeutic effect on stroke. It is an excellent Chinese herbal medicine.

Shaodong Yuzhu, excavation in autumn, remove the roots, wash, and dry until soft, repeatedly rub, dry until no hard heart, dry; or steamed, simmer until translucent, dried. The product is long cylindrical, slightly flat, with few branches, 4~18cm long and 0.3~1.6cm in diameter. The surface is yellowish white or yellowish brown, translucent, with longitudinal wrinkles and micro-bumps, white polka-like fibrous root marks and disc-shaped stem marks. Hard, brittle or slightly soft, easy to break, horny or grainy. The gas is slight, sweet, chewy and sticky. Shaodong County has a long history of planting medicinal materials. Since the Ming Dynasty in the 14th century, it has planted jade bamboo in towns and towns such as Lianqiao Town and Shuangfeng Township. According to the "Shaodong County Records", in the late 20th century, in the late Qing Dynasty, the county's Liuze, Lianqiao, Guangxu, Jieling, Shuangfeng and other towns and villages planted thousands of acres of jade bamboo, accounting for three-quarters of the province's annual output. . At the beginning of the 20th century, during the Republic of China, Guangdong merchants came to the territory to acquire Yuzhu, and transferred Guangzhou to Hong Kong and Macao, Southeast Asia, Japan, the United States, South Korea, Canada and other regions and countries. At this time, Shaodong County’s pigtails were called foreign traders. Xiang Yuzhu u0026quot;. At the beginning of the 21st century, Shaodong County's agricultural industrial structure has been strengthened and the pace has been accelerated. The planting area of ​​Chinese herbal medicines in the county has reached 120,000 mu, and there are more than 100 varieties of plantings. The annual output value is nearly 300 million yuan. The towns and towns and places are mainly Caoxiang Town, Lianqiao Town, Liuze Town, Shuangfeng Township, Jieling Township, Heidapu Township, Zhouguanqiao Township, Huangqiqiao Township, Liuguangling Town, Tuanshan Town, and the two cities. Town, Xianyuqiao Town, Shuidongjiang Town, Weijiaqiao Town, etc., of which the planting area of ​​Yuzhu has reached 60,000 mu, which has become the fist product of Shaodong County. The number of self-employed households engaged in the processing of Yuzhu tablets has reached 1,000 households. Emerge. In 2002, a medium-sized GMP Chinese medicine manufacturer, Hunan Songlingtang Traditional Chinese Medicine Pieces Co., Ltd., was established in Lianqiao Town, Shaodong County. The annual processing of Yuzhu has earned 800,000 US dollars. In the same year, Dongyang Agricultural Products Processing Factory was built in Shaodong Liuze Town. It is a medium-sized GMP Chinese medicine production enterprise. It processes 3,000 tons of Yuzhu Pieces and has an annual output value of 50 million yuan. At the end of 2002, the output value was 22 million yuan. Shaodong processes 50,000 tons of Yuzhu Pieces every year. The annual export earns nearly 100 million US dollars. The products are exported to more than 20 countries and regions such as Southeast Asia, Japan, Korea, America, Canada and Australia. They are favored by consumers and their products are in short supply. Become a superior agricultural product in Shaodong County. Shaodong's pigtail ginseng has a large output and excellent quality. In 2007, it accounted for 3/4 of Hunan Province's output, and its export volume is the first in China. It is well-known at home and abroad. Shaodong is the origin of pig ginseng, and has been recognized by the Regional Product Protection Office of the State Bureau of Quality and Technical Supervision. The dried meat of Polygonatum odoratum is a rhizome. It is a perennial herb of the genus Polygonatum and is a large-scale Chinese herbal medicine. Yuzhu, rooted in medicine, is flat and sweet, has the effects of nourishing yin and clearing heat, producing fluid and relieving cough. Indications dry mouth dry throat, dry cough and less phlegm, rheumatism cough, fever and sweat, upset heart, fever, polydipsia and other symptoms. It can also treat frequent urination, excessive spermatorrhea, waist and knee pain and diabetes. Scientific research proves that Polygonatum odoratum has the functions of lowering blood pressure, lowering blood fat, improving myocardial ischemia and relieving the formation of atherosclerotic plaque, and has a good preventive and therapeutic effect on stroke.

Shaodong Yuzhu quality technical requirements (a) to protect varieties. Pigtail ginseng. (2) Cultivation management. 1. Site conditions: Choose a sunny hillside or flat land between 200m and 600m above sea level. The soil should be yellow and red sandy loam, which is slightly acidic (pH 5.2 to 6.8), and the organic matter content is ≥1.2%. It should be cultivated in the soil with sticky soil, low-lying terrain and easy accumulation of water. Avoid continuous cropping. Ground. The former is best for gramineous or legume crops, the new district will be rotated once every 3 to 5 years, and the old district will be rotated once every 7 to 8 years. Bricks and tiles cannot be burned around the jade bamboo land. 2. Reproduction methods: (1) Underground rhizome breeding method: select the underground rhizome of the current year, the top bud is thick, no disease, insect and mechanical damage, the individual size is uniform, the weight is above 10g, fresh rhizome with partial whiskers Seedlings. Generally, 400 to 500 kg of seedlings are needed per 667 m2. (2) Seedling treatment: After the rhizome of the Polygonatum odoratum is selected, the medicament is disinfected once before sowing. 3. Planting: (1) Planting time: It is best to plant in late August to mid-September. (2) Reasonable close planting: The planting density should be 30cm×8.3cm. (3) Seeding depth: generally 6 to 7 cm is preferred. 4. Field management: (1) Management from planting to germination: Generally, the rain is less from August to March, and the winter temperature is low. Cover it with straw, litter, etc., cover 6 to 7 cm thick. Use organic fertilizer as a covering material to spread 1 layer on the surface. (2) Management of the first growing year: After emergence in March, prevent humans and animals from entering the ground. When the new seedling grows to 7 to 10 cm, it can be used to pick up the seedling fertilizer, and the compound fertilizer can be used. Do not apply ammonium bicarbonate. After the winter seedlings are removed, the weeds are removed, and a layer of soil or compound fertilizer is applied to the surface, and 5 to 6 cm thick straw or litter is added, or the soil is cultivated on the spot. (3) Management of the second growing year: After the emergence of spring, grasp the once-fertilized manure and manure. In the second year, the jade bamboo seedlings are denser and have a better shade, which can inhibit the growth of some weeds and find that the weeds should be removed in time. (4) Adopting intercropping or rotation mode (3) Quality characteristics. 1. Appearance: The jade bamboo strip is long cylindrical, slightly flat, with few branches, 8 to 20 cm long, 1.2 to 1.6 cm in diameter, yellow-white, golden or yellow-brown, translucent, with longitudinal wrinkles and micro-bumps. In the link, there are white polka-like root marks on the knot, one end is sparse, one end is dense, the stem marks are thin and nodular, the texture is slightly soft, the section is yellowish white, slightly transparent, rich in sugar, sweet and fragrant. Thick, chewy is sticky. The jade bamboo slices are fleshy white, without skin, or have a little outer skin, and the sheet width is 6mm to 15mm. 2. Physical and chemical indicators: moisture ≤ 18.5%; mucopolysaccharide ≥ 10.0%.

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Producers within the scope of protection of Shaodong Yuzhu GI products may submit an application to the Shaodong County Bureau of Quality and Technical Supervision for the use of the “Special Mark for Geographical Indication Products”, which is approved by the General Administration of Quality Supervision, Inspection and Quarantine.