Inspect rice for the protection of national geographical indications. The rice is clear, nutritious and rich in flavor.

Chayu County, the county of Linzhi City, Tibet Autonomous Region, China, is a border county. Located in the southeast of the Tibet Autonomous Region, the eastern part of Linzhi City. It is bordered by Zuogong County in the east, Deqin County in Yunnan Province, Myanmar and India in the south, Medog County in the west, and Zuogong, Basu and Bomi counties in the north. The total area is 31,659 square kilometers. The total population is 30,000 (end of 2013). The county has a total of ten ethnic groups, including Tibetan, Han, Naxi, Dulong, Miao, Hui, Menba, Yuba, Yi, and Nu, and an unidentified nation. Jurisdiction over 3 towns, 3 townships. It is located in the Nyainqentanglha Mountain and the eastern part of the Himalayas, in the Bersula Ridge. The terrain is complex, and the terrain is inclined from the northeast to the southwest. The county's average elevation is 2,800 meters, and the county seat is located at 2,360 meters above sea level in Jigong Village, Zhuwagen Town. Most areas are affected by the warm currents of the Indian Ocean as a subtropical humid climate. The four seasons are mild and rainy, with an annual precipitation of 805 mm, an average annual temperature of 11.9 °C, and a frost-free period of 217 days. The rivers flowing through the territory are the Nujiang River, the Chayu River, and the Gongri 嘎 cloth.

Quality and technical requirements for rice in Chayu 1. Variety Suitable for locally grown varieties. Second, the scope of protection Chayu County, Chayu Town and Xiacha Town. 3. Site conditions The soil type is cinnamon soil and paddy soil. The texture is sandy clay loam and sandy loam. The thickness of the tillage layer is ≥20 cm, the organic matter content is ≥3.0%, and the pH value is 5.0-6.5. Fourth, cultivation management 1. Raising: from mid-March to the end of the sowing, 300-400 grams of germination seeds per square meter. 2. Transplanting: The transplanting time is from late April to early May, the age of 35-40 days, ≤ 0.9 million points per 667 m2, 2-3 per hole. 3. Fertilization: Apply ≥500 kg of organic fertilizer per 667 m2, once every two years. 4. Environmental and safety requirements: The use of pesticides, fertilizers, etc. must comply with relevant national regulations and must not pollute the environment. 5. Harvesting will be harvested from late September to early October, and naturally dried. Sixth, processing Wind selection → cleaning → decontamination → Shibuya → valley rough separation → rice milling → selection → classification → inspection → packaging → storage. Seven, quality characteristics 1. Sensory characteristics: rice grains are neat and symmetrical, crystal clear, rice oil is bright, does not regenerate after cooling. 2. Physical and chemical indicators: 垩 white grain rate ≤ 10%, amylose content 14% ~ 20%, protein ≥ 7.5%. 3. Safety and other quality technical requirements: Must comply with relevant national regulations.

Apply to：
Producers within the scope of the production area of ​​Chayu Rice may submit an application to the Linzhi Municipal Bureau of Quality and Technical Supervision for the use of the “Special Mark for Geographical Indication Products”, which shall 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 inspection organization of the inspection of rice is selected by the Quality and Technical Supervision Bureau of the Tibet Autonomous Region in the inspection institutions that meet the qualification requirements.