Rhubarb is also known as Sheng Jun Rhubarb, General Rhubarb, Jinwen Rhubarb and Kuiye Rhubarb. As a tall perennial herb of Polygonaceae, it is planted all over Dangchang, with a large planting area in Zhuyuan, Haoti, Lion, Guanting, Qinyu, Xinzhai and Nanhe. 1984 was awarded "honorary certificate of export commodities" by the Ministry of Foreign Trade and Economic Cooperation, and in 20 15, Dangchang rhubarb passed the certification of geographical indications of agricultural products by the Ministry of Agriculture.
Tanchang County is one of the main producing areas of rhubarb, and the world-famous "Huang Xuan" is produced in Xuanshui Township of Lixian County and Zhuyuan Township of Tanchang County. Rhubarb has become one of the five leading medicinal materials in Dangchang.
As early as the Tang Dynasty, Dangchang rhubarb changed from wild to domestic, and its cultivation techniques were passed down from generation to generation, commonly known as "China rhubarb is the best in the world, and spring rhubarb enjoys a high reputation". Nanyang area in Tanchang County is connected with spring water and mountains, with the same soil, moisture and climate. The "double deer rhubarb" produced in the two places is exported to European countries, with high quality and low price.
Rhubarb is one of the four famous Chinese herbal medicines, and its pharmacological uses are very extensive. Its main functions are: removing blood stasis and promoting blood circulation, relieving diarrhea and fever, resisting bacteria and diminishing inflammation, protecting liver and promoting diuresis, mediating immunity, delaying aging, reducing blood fat and weight, resisting tumor, stopping bleeding and relieving pain, etc. In addition, it is also used to prepare fructose, beverages, spices, wine making and industrial dyes.
As early as 753 AD, Dangzhou Rhubarb was taken by Jian Zhen monk Du Dong "My Ben" and crossed with "My Ben Rhubarb" to form Japanese Rhubarb. Since then, Dangchang rhubarb has become a domestic variety of Shan Ye medicinal materials, passed down from generation to generation, commonly known as "China rhubarb is the best in the world, and filing emodin is famous". Nanyang area of this county is at the junction with Lishui, with the same soil, moisture and climate. The "double deer rhubarb" produced in the west is of high quality and exported to European countries.
Rhubarb is distributed all over the county. After liberation, planting began, with a large planting area and a large output, such as Zhuyuan, Haoti, Lion, Guanting, Qinyu and Xinzhai. The county's average annual planting area is 3000-4000 mu, with a total output of 12. More than ten thousand catties. 1984 was awarded the honorary certificate of export commodities by the Ministry of Foreign Economic Relations. The annual export is 200,000-300,000 Jin and the foreign exchange earned is 380,000 US dollars.
Rhubarb, a medicinal functional plant, is a perennial herb, which mostly grows in shady and humid places in mountainous areas around 2000 meters above sea level. Like cool and humid, avoid high temperature and cold, can safely overwinter, grow well in deep, loose and fertile sandy soil, avoid clay and continuous cropping. It is bitter and cold, and contains cathartic ingredients derived from onion oxalate. It has the effects of eliminating stagnation, purging fire and cooling blood, promoting blood circulation, removing addiction, promoting gallbladder function and relieving Huang Zhi. It is mainly used for treating constipation and abdominal pain caused by gastrointestinal heat accumulation, hematemesis, sore throat, toothache, blood stasis, damp-heat jaundice, etc. Because of cold, it will damage vitality, consume yin blood and cause symptoms.
territorial scope
The rhubarb planting area in Tanchang County is mainly located in the cold and wet zone with an altitude of 2,000 ~ 3,000 meters in the upper reaches of the Western Han River in the east of Tanchang County. East longitude10401'~10448', north latitude 33 46' ~ 34 23'. The terrain gradually rises from east to west, connecting Lixian County in the east, Wudu District in the south, Diebu in the west and Minxian County in the north. There are Awu Township, Hadapu Town, Lichuan Town, Bali Township, Pangjia Township, Nanhe Township, Hejiabao Township, Muer Township, Xinghua Township, Chela Township, Jiang Tai Township, Jiahe Township, Chengguan Town, Xinchengzi Township, Linjiang Township, Ganjiangtou Township, Lianghekou Township, Shawan Town, guan ting zhen, Xinzhai Township, Lion Township and Nanyang Town in the area.