Ophiopogon japonicus is the root of the Liliaceae plant, Ophiopogon japonicus. The roots are spindle-shaped, with large particles, slightly pointed ends and small center pillars. The surface is yellowish white, shiny, and fine vertical stripes. The section is milky white, translucent and flexible. Scent, chewy, sticky, sweet, slightly bitter, slightly cold. Chuan Maidong is a traditional Chinese medicine and food medicinal material. It has the effect of nourishing yin and spleen, moistening the lungs and eliminating fire. It is an essential medicine for nourishing yin and sputum in Chinese medicinal materials. There are “Yucheng Maidong Qianjinbao, the original animal of the herb Wan Guozhen” Said.

It has the functions of moistening the lung and nourishing yin, benefiting the stomach and fluid, clearing the heart and removing the trouble, cooling the blood to stop bleeding, beauty and benefit the skin, and strengthening the body. Into the medicine can cure the disease, into the tea can prevent disease and production, beauty and skin. It can also process intensive injections, decoction pieces and drinks to meet the needs of people's various life. It is a natural health care and nourishing treasure. Medical authoritative experts and national premium tea masters have praised “Yucheng Maidong” as saying: its main ingredients and medicinal value are no less than “Changbai Mountain Ginseng”. Today, there is the "Yucheng Maidong" Qianjinbao, the "herbalized plant Wan Guozhen" said that ancient and modern Chinese and foreign people are commensurate with "precious Chinese herbal medicines". Its roots, whiskers, stems and leaves have great potential for development and utilization, and the market prospect is very broad. After the protected effect is protected, the annual planting area of ​​Maicheng in Santai County has reached 28,000 mu, and the output is nearly 7,500 tons. The export accounts for more than 50% of the national wheat winter export volume, accounting for 30% of the county's crop production value. About 100% of the province's total output of wheat and winter is about 80%. In 2011, the output value of Maicheng in the county reached 1.08 billion and the export was 15 million yuan. The three “Yucheng Maidong” have been included in the “Mianyang City Chinese Herbal Medicine Key Construction Project Plan (2010-2015)”, and will focus on development in the next few years. All levels and departments will invest 0.15 billion yuan in the city. Winter support, planning to 2015, the county's wheat winter production base will grow to 32,000 mu, the output will reach 9,920 tons. Product Awards Yucheng Maidong has won the "Sichuan Provincial Fine Agricultural Standardization Demonstration Zone", the provincial "Non-pollution Agricultural Products Origin Certification", "Sichuan Top Ten Geographical Indicator Agricultural Products", "Sichuan Famous Brand Agricultural Products", "Sichuan Famous Specialties" title.

Yucheng Maidong quality technical requirements (a) provenance. It is Ophiopogon japonicus (L.f.) ker-Gawl. (2) Site conditions. The groundwater level of the Minjiang River at an altitude of 450m to 550m is in the I and II terraces below 50cm, and the pH is neutral or slightly alkaline (pH 7.0 to 8.0) wet sand soil, and the water source and irrigation (row) are convenient. Soil fertility, soil tillage soil layer ≥ 20cm, organic matter content ≥ 1.3%. (3) Cultivation. 1. Seedling selection: When harvesting in the winter, choose dark-green and robust plants as seedlings. 2. Seeding: Every year from April 5th to 20th, the special tools of Ophiopogon japonica are used to ditch in the flat land. The seedlings are planted vertically in the ditch, covering the fine soil, keeping the soil surface level and the seedlings are stable and stable. Each 667 square meters (mu) can be planted with 60 to 70,000 plants, each plant is 1 to 3 inches, the plant spacing is 10 cm × 10 cm, or the row spacing is 12 cm to 13 cm, the plant spacing is 8 cm to 9 cm, and the planting depth is 3 cm to 4 cm. 3. Management measures: timely planting seedlings after planting, weeding, cultivating loose soil, scientific fertilization, comprehensive prevention and control of pests and diseases, keeping the soil water-stained and not cracking. Should be intercropped with corn and garlic; with rice, vegetables, potatoes, and rapeseed rotation, avoid continuous cropping. (4) Harvesting and packaging. The growth period is about 12 months. It is harvested in the sunny weather from the end of March to the middle of April in the second year after planting. The harvested wheat winter roots are placed in clear (flowing) water and washed for clean wheat, and the fresh wheat is dried, screened, classified, packaged and stored. (5) Quality characteristics. 1. Sensory features: The roots are in the shape of a spine, with large particles, 1.5 cm to 3.5 cm in length and 0.3 cm to 0.7 cm in diameter. The ends are slightly pointed and the middle column is small. The surface is yellowish white, shiny and fine vertical stripes. The section is milky white, translucent and flexible. Scent, chewy, sticky, sweet, slightly bitter, slightly cold. 2. Physical and chemical indicators: water ≤ 18%; leachate ≥ 60%.

Apply to：
The producers within the protection scope of the yincheng yin GI products may submit an application to the Quality and Technical Supervision Bureau of Sichuan Province, using the “Special Mark for Geographical Indication Products”, which is approved by the General Administration of Quality Supervision, Inspection and Quarantine.