Baoxingchuan Achyranthes, the dry root of A. sinensis, has the effect of sputum-passing, strong bones and muscles, Tongli joints, diuretic Tonglin, and plays an important role in the clinical application of traditional Chinese medicine and the industrialization of traditional Chinese medicine. Modern research has also extracted a bioactive polysaccharide, Achyranthes bidentata polysaccharide, from the root of Achyranthes bidentata L., which has the functions of promoting red blood cell immunity, anti-tumor, and reducing peripheral leukopenia caused by cyclophosphamide.

Chuan Niu Knee, also known as Achyranthes, knees, Tian Quan Niu Knee, are all beef gelatin. The root is cylindrical, fresh when the surface is nearly white, dry after taupe or brownish yellow. Produced in Sichuan, Yunnan, Guizhou and other places. The root is used for medicinal purposes, and the raw product has the effect of reducing blood stasis and sputum, and the cooked product is liver and kidney, and the waist and knee are strong. The content of the main component of Baoxingchuan Achyranthes (C29H44O8) is significantly higher than the limit of not less than 0.030% in the Pharmacopoeia of the People's Republic of China (2010 edition). "Baokang No. 1", which was selected from the wild populations collected by the model standard, had a cuprone content of 0.062%. Chuan Niu Knee is the most authentic and famous Chinese herbal medicine variety in Baoxing County. Its model specimens are collected from the Fengtong County Beefuzhai Nature Reserve. They are grown on the same pure soil as the giant pandas, and their production has accounted for the national Sichuan cattle. More than 60% of total knee production, renowned at home and abroad, has a broad international market prospects and development potential. Baoxing County is a subtropical warm and humid monsoon weather area. The temperature difference between day and night is as high as 10 °C, and the vertical zoning of the weather is obvious. The forest cover rate in Baoxing County is more than 75%. The air merits of the Sichuan cattle knees are close to the national level II specifications, and the water quality reaches the I and II specifications. It has the reputation of “Green Noah's Ark”. Due to its special geographical and ecological environment, Baoxingchuan Achyranthes has a distinct personality of root white, stalk red and sweet medicine, and it also cultivates the merits of Baoxingchuan cattle lap. Quality characteristics Baoxingchuan Achyranthes roots are rich in state, and are greatly distorted like crutches or oxtails. The head is thick and thin, 30~50 cm long, 5~25 mm in diameter, and there are broken marks on the top of the stem (reed head). The surface is grayish brown or brownish yellow with twisted longitudinal wrinkles and root marks. It is soft and flexible, not easy to climb. The section is brownish yellow, with small yellow dots, arranged in several circles, rich in oil and sticky. Medicinal value Baoxingchuan Achyranthes is commonly used as a health food in addition to medicinal use, such as achyranthes stewed pig's trotters and double cattle soup. In addition, young plants and fresh stem tips of Baoxingchuan Achyranthes are often used as wild vegetables, such as Achyranthes fried eggs, etc., so Baoxingchuan Achyranthes is also known as “Hawthorn”. Planting Management Baoxing is one of the main producing areas of Sichuan Achyranthes. It is also a collection place for specimens of Sichuan Achyranthes. It has a long history of planting and its output has an absolute advantage. At present, the total output of Sichuan Achyranthes in Baoxing County has been above 2000 tons since 2000. In 2011, the county has a land area of ​​780 hectares and a harvest area of ​​about 300 hectares. The balanced output per hectare is 7870 kg, slightly higher. In the country's balanced production, the total output is 2,361 tons, accounting for 60% of the country's output, becoming the largest production area. Baoxing Daochuan Achyranthes is superior in virtue and has a sweet taste. The common name is “sweet achyranthes”. In the trading of medicinal materials, it is often sold in the other regions. The price is also generally 1~2 yuan. According to the survey of the Chinese herbal medicine market of Chengdu Hehuachi in May 2013, the price of Baoxing sweet achyranthes is 17~18 yuan/kg. After the protection of Baoxingchuan Achyranthes was protected, the county government and local professional cooperatives and farmers have become more aware of the role of the locality, combined with the development of the “Baoxingchuan Achyranthes National Standardization Demonstration Zone” Further carrying out the work of standardization planting and variety preservation and conservation, the planting enthusiasm has been greatly improved, the original species and improved varieties have been well protected, the base has been gradually expanded, and the income of farmers has been effectively increased. Product Awards In 2011, Baoxing County was included in the “National Sichuan Achyranthes Standardized Cultivation Demonstration Zone”, “Chuan Niu Knee Standardized Base Construction and SOP Optimization and Upgrade” was included in the National Twelfth Five-Year Science and Technology Support Program, 2012 The first new breed of Sichuan Achyranthes "Baojiao No. 1" was approved by the Sichuan Crop Variety Approval Committee.

Baoxingchuan Achyranthes quality technical requirements I. Cyathula officinalis Kuan. Second, the seed quality standard 1. Appearance: fruit dark brown, reddish, cell fruit, oval or elliptical obovate, dark gray, 2 to 5 mm long, 1 to 2 mm in diameter, containing one seed. Seeds oval or elliptic, shiny, glabrous, russet, 2 to 2.3 mm long, 1 to 1.5 mm in diam. 2. 3. Thousands of grains: Thousands of grains (removed from the cell) weighed between 1.4 and 1.8 g. 4. Water content: water content ≤ 14%. 5. Germination rate: seed germination rate ≥ 80%. 6. Vitality: Vitality ≥ 80%. 7. Seed storage: low temperature and dark storage. The shelf life is one year, and seeds should not be used for sowing seeds in the next year. Third, the site conditions The origin of the range of 1200 to 2400m; micro-viscous loam, organic matter content ≥ 1%, pH 5.5 to 6.5. It must be rotated and the interval between rotations is 3 years. Fourth, cultivation management Planting: Sowing in the middle and late April, using hole sowing, plant spacing 35 × 30cm, hole depth 5cm, seeding 10 to 15 seeds per hole; ≤ 450,000 per hectare. 2. The first cultivating and weeding is carried out; the seedling height is about 10cm in the middle and late June, and the cultivating and weeding are carried out once in the first half of August when the seedling height is about 35cm. The second year is also necessary to cultivate and weed three times, the same time as the first year. The third year To harvest, only the first two times of cultivating. For the fourth year of harvest, the third year of cultivating and weeding three times, the fourth year only the first two times. 4. Topdressing: the principle of implementing farmyard manure and supplemented by chemical fertilizers. After each cultivating and weeding, topdressing is carried out. Each 667m2 (mu) of rotted farmyard manure is 533 to 667kg. 5. Soil: When cultivating and weeding for the third time each year, the soil should be preserved at the base of the plant. 6. Picking leaves to go to 薹: When When the nutrition is sufficient, the plants grow vigorously, and the excess leaves should be removed in time to promote root growth. When convulsions, it is necessary to carry out the mites in time. 7. Environmental and safety requirements: the use of pesticides, fertilizers, etc. must comply with relevant national regulations and must not be polluted. Environment. V. Harvesting 3 to 4 after broadcasting Harvest from October to November. Deep excavation is required to reduce roots. Sixth, after initial processing and excavation, shake off the soil, remove the reed and root, cut off the lateral roots, and make the main root and the lateral root into a single branch. Then according to the size of the root strip, Shun into a small handle; stand on the squat or on the drying field. When 炕, group by weight, dry at 65 °C, sample the water at intervals of 2 hours, after the water content ≤ 16%, pile up for several days, after reflow, Dry at 65 °C, sample the moisture at intervals of 2 hours, and the water content can be ≤14%. 7. Quality characteristics 1. Sensory characteristics: nearly cylindrical, slightly twisted, slightly downward or with a few branches, length 30 Up to 60cm, diameter 0.5 to 3cm. The surface is yellow-brown or taupe, with longitudinal wrinkles, root marks and most horizontally long lentic-like protrusions. It is tough, not easy to break, the section is light yellow or brownish yellow, and the vascular bundles are spotted. Arranged into several rounds of concentric rings. Micro-small, sweet. 2. Physical and chemical indicators: Item index moisture (%) ≤16.0 Leachate (%) ≥65.0 Ash (%) ≤8.0 Acid-insoluble ash (%) ≤1.5 cups Ketone (C29H44O8) (%) ≥ 0.03 3. Safe and

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Producers within the scope of Baoxingchuan Achyranthes can submit an application for the “Special Mark for Geographical Indication Products” to the Quality and Technical Supervision Bureau of Baoxing County of Sichuan Province. After examination by the Sichuan Quality and Technical Supervision Bureau, it is submitted to the General Administration of Quality Supervision, Inspection and Quarantine for approval. Announced. The inspection mechanism of Baoxingchuan Achyranthes is selected by the Sichuan Provincial Bureau of Quality and Technical Supervision in the testing institutions that meet the qualification requirements.