The origin and main producing area of ​​Yujiang Summer is Yujiang County, Jiangxi Province. Nothing in summer, the alias is also called a golden dragon, a fairy in the cave, wild Yanhu, and Fudiyanhuso. According to historical records, "Jiangnan West Road, wet all the year round, cold in winter and autumn, residents trekking in paddy fields, suffering from cold and wetness. In the Eastern Han Dynasty and the emperor's year, the ancestors of the ancestors drove between the dragon and the tiger to practice the road, compassionate the people, and collected drugs. Spirituality, named after a golden dragon."

The origin and main producing area of ​​Yujiang Summer is Yujiang County, Jiangxi Province. Yujiang County was the territory of Yuhan County in the Qin and Han Dynasties, Jinxing County was established in the first year of Jinyuankang (AD 291), Jinxing Township was the retreat county, and it was renamed Yujiang County in the late Qing Dynasty. Named after the water in the territory (Xinjiang). Yujiang summer has no unique natural environment due to the mother River River Basin. The first excavation study in the country was not in Yujiang County. Nothing in summer, the alias is also called a golden dragon, a fairy in the cave, wild Yanhu, and Fudiyanhuso. According to historical records, "Jiangnan West Road, wet all the year round, cold in winter and autumn, residents trekking in paddy fields, suffering from cold and wetness. In the Eastern Han Dynasty and the emperor's year, the ancestors of the ancestors drove between the dragon and the tiger to practice the road, compassionate the people, and collected drugs. Spirituality, named after a golden dragon." Eastern Jin Dynasty alchemy, Taoist theorist Ge Hong (Ge Xuan from Sun, known as Ge Xianwen, AD 283-363) was in the birthplace of Taoism in Jiangxi Qingjiang Pavilion soap mountain (now Longhu Mountain in Yingtan, Gexian Mountain in Yujiang) Alchemy. According to the "Yujiang County Records", during the Eastern Jin Dynasty, the Gexian Mountain in the Huaqiao Township of Yujiang County was stacked with vast vegetation, and it was outside the Yundong Cave. The local people suffered from the cold and dampness. Ge Hong picked up a local plant with purple flowers and flowers for the use of the people. The people served it and climbed the mountain to relieve the suffering of the people. In order to commemorate Ge Xian Weng, the local people called the mountain to Gexian Mountain. The local village is called Gejiadian. In the summer, it is not known that Ge Hong was named “Dongli Shenxian” in the cave. According to another study, during the Chongzhen years (1628--1644), the summer of Gexian Mountain was not blooming everywhere, and the countryside was flourishing, and the folks used a lot of summer bruises. In the Qing Dynasty, Yu Jiang was not widely used in the summer. In the Qing Dynasty, Zhao Xuemin (1719-1805) recorded in the "Compendium of Materia Medica": "A fairy in the cave, also known as Ye Yanhu, Jiangnan people came to fly peony, It is the first of the four famous medicines in Jiangnan. Therefore, in the summer, there is no one called Jindan, the god of the cave, the wild Yanhu, and the Fudiyanhuso. It has a history of more than 1900 years since it was recorded in the summer. It was not until the 1960s that the research team of the famous Chinese medicine practitioners of Yujiang County Pharmaceuticals began to excavate the summer of the four famous medicines in the south of the Yangtze River.

Yujiang summer no quality technical requirements (a) source. It is a tuber of the poppy family Corydalis decumbens (Thunb.) Pers. (2) Site conditions. Select the protected area within 150m above sea level, the terrain is flat and open, the sun is abundant, the drainage is good, the soil is loose, the loam soil is soil, the soil pH is 5.0 to 6.0, and the organic matter is 2.0% or more of red loam, paddy soil and tidal soil. (3) Cultivation management. 1. Preparation for the ground preparation: rotation, timely land preparation after the autumn harvest: according to the width of 1.5m to 2m for the raft, open the trench, the depth of the ditch is 10 cm to 15cm, the width of the ditch is 20 cm to 30 cm, and the side and the groove are connected vertically and horizontally. The car is flat. 2250kg to 3750kg of phosphate fertilizer per hectare is used as the base fertilizer. 2. Selection of stems: Select tubers with no disease, completeness, and bright color, and a diameter of about 1cm. 3. Planting: (1) Planting time: planted from mid-October to mid-November. (2) Planting density: no more than 555,000 plants per hectare. (3) Planting method: striping, covering straw directly to all soil layers. 4. Field management: keep the soil moist within one month after planting, watering and sprinkling if necessary, and artificially weeding and weeding. 5. Topdressing: It is necessary to topdress once before the spring, and apply 300 kg to 450 kg of urea per hectare. 6. Environmental and safety requirements: The use of pesticides, fertilizers, etc. must comply with relevant national regulations and must not pollute the environment. (4) Harvesting and processing. Harvested from mid-April to early May. Choose sunny harvesting, pick up the tubers, remove the roots and aboveground parts, wash, dry or dry until the water content is within 15%. (5) Storage. Store in a dry and ventilated place. (6) Quality characteristics. 1. Sensory characteristics: spherical, oblong or irregular block, 1 cm to 3 cm long; diameter 1cm to 2.5cm. The surface is grayish yellow or dark green, with multiple knobs, the tip is obtuse, and the stem marks are visible. There are pale yellow spotted leaf marks and fibrous root marks around it. Hard, yellow or white in yellow. Weiqi, bitter taste. 2. Physical and chemical indicators: calculated according to the dry product, containing the original opioid ≥ 0.35%. 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 Yujiang summer without GI products may submit an application to the Quality and Technical Supervision Bureau of Yujiang County, Jiangxi 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.