Derong County is located in the southern part of Ganzi Tibetan Autonomous Prefecture in Sichuan Province. It is located in the junction of Sichuan, Yunnan and Tibet provinces. It is connected to Batang and Xiangcheng counties in the north, adjacent to the middle county in Yunnan Province in the southeast, and Deqin in Yunnan Province in the southwest. The county is adjacent. Derong Tree Pepper is commonly known as “Tree Chili” and is a unique variety of peppers. The pepper is spicy and strong, the color is golden, and the spicy taste is pure and tastes good. Compared with other pepper varieties, it has the effect of not appetizing the stomach after eating, and has the effect of appetizing spleen, dispelling cold and increasing appetite.

After the protection was safeguarded, since 2007, the Devon County Tree Pepper Science and Technology Demonstration Base has been established. Under the great attention of the county government and the provincial and state business authorities, the scientific and technical personnel of the Desheng Agriculture and Animal Husbandry Science and Technology Bureau have made efforts. Under the support of science and technology, the establishment of 38 acres of tree pepper science demonstration base. At the end of 2007, the planting area of ​​the pepper in the county reached 500 mu, with a total output of 200 tons. Through the Science and Technology Bureau and the Agriculture and Animal Husbandry Bureau, we will support Derong Green Food Co., Ltd. to develop the fruit and pepper products. Since 2007-2009, we have increased the planting area of ​​800 peppers and promoted 3 varieties of pepper products. In 2009, the company actively coordinated the Science and Technology Bureau, the Agriculture and Animal Husbandry Bureau, and invested 120,000 yuan (special funds for peppers) to entrust the Provincial Food Research Institute to develop six deep processing products of peppers to meet market demand. In 2010, the area of ​​science demonstration base will be increased by 20 mu, and 200 mu of pepper will be promoted. In 2011, the area of ​​science demonstration base will be increased by 22 mu, and the area of ​​pepper planting will be increased by 300 mu. In 2012, the area of ​​science demonstration base will be increased by 22 mu to promote the cultivation of pepper. 300 acres. By 2012, a total of 100 acres of demonstration bases will be established. The award-winning product won the winner of the "Sun Valley" Tibetan Township pepper best-selling product award at the 8th China International Expo Special Agricultural Exhibition; the first China Chengdu International Agricultural Fair won the gold medal; the second Sichuan · The Western China International Agricultural Fair won the Silver Award.

Derong tree pepper quality technical requirements (a) variety. Local varieties of pepper. (2) Site conditions. The altitude is 1900 meters to 2500 meters, the slope is below 10 degrees, the soil layer is deep, fertile, the permeability is good, the pH value is 8.0 to 8.4, the organic matter content is ≥2%, and the sandy loam cultivated land with good irrigation and drainage is well. (3) Cultivation management. 1. Nursery: Adopt nursery seedlings. Seeds that are free from pests and diseases and full of seeds are selected and sowed after soaking and germination treatment. When the seedling grows to 5 true leaves, the seedling height is 7 to 10 cm. 2. Colonization: When the temperature rises steadily above 12 °C in late March, it can be planted. Plant 3300 to 3500 litters, 2 plants per litter. 3. Density control: As the canopy expands, the density is controlled by sparse planting. 4. Fertilizer and water management: keep the soil moist and nutrient supply, mainly apply the decomposed organic fertilizer, harvest the green fruit once, and apply the fertilizer once. (4) Harvesting. 1. Freshly eaten pepper: It can be harvested with hardened skin, bright color, full green green pepper, and yellow pepper. 2. Dried pepper: harvest golden yellow fruit. (5) Quality characteristics. 1. Sensory index: The fruit is short horn-shaped, the tip is slightly pointed, the surface is smooth and bright, the length is about 2 cm to 5 cm, the taste is strong, the aftertaste is fragrant, the fresh fruit is green or golden yellow, and the dried fruit is golden yellow. 2. Physical and chemical indicators: capsaicin ≥ 0.4%, vitamin C ≥ 15mg / 100g, vitamin B2 ≥ 0.3μg / 100g, calcium ≥ 15mg / 100g, selenium ≥ 0.2μg / 100g.

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Producers within the scope of protection of geographical indication products of Derong Pepper can submit an application for the use of “Special Marks for Geographical Indication Products” to the Quality and Technical Supervision Bureau of Derong County of Sichuan Province, which is approved by the General Administration of Quality Supervision, Inspection and Quarantine.