Longzi Black Barley is a unique barley variety in Longzi County, Shannan District, Tibet. It grows in wheat fields at an altitude of 3,800 m to 4,200 m. It is named because its husk and grain epidermis are black and purple, and its shape is elliptical or rhomboid. It has special high antioxidant and nutrient content which is not found in common white peony.

The black scorpion in Longzi County is made from high-quality black barley, which is 3800 meters to 4200 meters above sea level in Longzi County. The color is grayish black, the powder is even, the thickness is moderate, and it has a unique green scent and a sweet taste. With the continuous improvement of people's living standards, healthy consumption and healthy eating have become fashionable. Longzi Black and Green is favored by many Tibetan consumers and mainland consumers.

Quality Technical Requirements for Longzi Black Barley 1. Variety of local black barley varieties. Second, the site conditions range from 3800 m to 4200 m above sea level, soil thickness ≥ 60 cm, effective tillage layer thickness ≥ 20 cm, soil pH 6.5 to 7.5. Third, cultivation management Seed requirements: seed purity ≥ 95%, clarity ≥ 96%, germination rate ≥ 87%. 2. (2) Seeding rate: ≤300kg/ha. 3. Fertilization: The annual application of farmyard manure is ≥27t/ha. 4. Harvest: Harvest at the end of waxing, the specific time is from late August to early September. 5. Environmental and safety requirements: The use of pesticides, fertilizers, etc. must comply with relevant national regulations and must not pollute the environment. Fourth, processing and storage of the field → dust → packaging → storage. V. Quality characteristics 1. Sensory characteristics: The grain of the grain is purple or purple-black, and the shape is elliptical or diamond-shaped. 2. 3. Safety and other quality technical requirements: Product safety and other quality technical requirements must comply with relevant national regulations.

Apply to：
Producers within the production area of ​​Longzi Blackland can submit an application to the Quality and Technical Supervision Bureau of Shannan District of the Tibet Autonomous Region for the use of the “Special Mark for Geographical Indication Products”, which will be reviewed by the Quality and Technical Supervision Bureau of the Tibet Autonomous Region and reported to the General Administration of Quality Supervision, Inspection and Quarantine for approval. The testing agency of Longzi Black Barley is selected by the Quality and Technical Supervision Bureau of the Tibet Autonomous Region in the testing institutions that meet the qualification requirements.