Yijun walnut has a large, moderately thick shell, pure color and full fruit. The fruit weight is about 12 grams. The taste is not astringent, the flavor is fragrant and the quality is superior. It contains 15.09% protein (up to 17.96% in the western mountainous area), and the total amount of 17 kinds of amino acids is 15.59%.

Yijun walnut has a large, moderately thick shell, pure color and full fruit. The fruit weight is about 12 grams. The taste is not astringent, the flavor is fragrant and the quality is superior. It contains 15.09% protein (up to 17.96% in the western mountainous area), and the total amount of 17 kinds of amino acids is 15.59%. Contains calcium, phosphorus, potassium, magnesium, copper, iron, zinc, manganese, selenium and other trace elements, fat content of 64.1% (up to 69%), of which 97.4% of unsaturated fatty acids are the highest in the country, linoleic acid, The linolenic acid content reached 62.11% and 9.87%, respectively. Contains vitamins B1, B2 and vitamin E. Therefore, in a certain sense, Yijun walnut is an original ecological food. Place of Origin: Yijun walnut production area is 9 townships in Qipan Town, Yunmeng Township, Chouquan Township, Tai'an Town, Chengguan Town, Peng Town, Wuli Town, Xicun Township and Yusheng Town, Yijun County, Tongchuan City, Shaanxi Province. The administrative area is under the jurisdiction. Yijun County is located in the junction of the Guanzhong Plain and the Loess Plateau in northern Shaanxi, the eastern monsoon humid zone and the continental arid zone. It is located in the center of the million-mu walnut forest belt in northern Hebei. The climate is cold in winter and cool in summer, and the temperature difference between day and night is large, which is conducive to the accumulation of dry matter, and the walnut produced is good. The superior natural conditions have brought unique advantages to the cultivation of walnuts in Yijun County. Yijun County has been established as a key county in the walnut industry by the Shaanxi Provincial Government. In 2007, Yijun Walnut won the “China International Forest Products Expo Gold Award and the Olympic Recommended Fruit Dried Fruit First Prize”. In 2009, “Yihe No. 1” walnut won the gold medal of the 2nd China Walnut Conference.

Yijun walnut quality technical requirements I. Variety Suitable for the cultivation of Yihe No. 1, Qingxiang, Qiang Te, Xiangling, Weiner and other varieties. Second, the site conditions The altitude of the production area is 800m to 1500m, the soil type is loess or black loess, the organic matter content is 1.5% or more, and the pH value is 6.5 to 7.5. Third, planting management Breeding: Adopting Yijun walnut to cultivate seedlings, and adopting double tongue grafting method to breed Yijun walnut seed grafting seedlings. 2. Planted according to the technology of “big pit, big fat, big water, film, cut dry, bagging”. 3. Fertilization: After harvesting in autumn, combined with soil, the base fertilizer is applied, and each plant is applied with 10 kg to 20 kg of organic fertilizer. 4. Trimming and shaping: combining the trimming of the growing season with the trimming of the dormant period, the tree shape is mainly composed of sparsely dispersed and natural happy. 5. Fresh fruit harvest: Green fruit turns from green to yellow-green, and the skin of 2/3 or more fruits naturally cracks or falls off, which is the best harvesting period. Different varieties are required to be harvested separately. 6. Environmental and safety requirements: The use of pesticides, fertilizers, etc. must comply with relevant national regulations and must not pollute the environment. Fourth, processing According to the variety of transport, separate peeling, drying or baking alone, individually packaged to prevent mixing. After harvesting, natural stacking, mechanical peeling, timely cleaning, drying or baking, grading and packaging. The empty shell rate is required to be ≤ 3%, the breakage rate is ≤ 0.3%, the black spot rate is less than 0.2%, and the moisture content is ≤ 8%. Five, quality characteristics Sensory features: the nuts are fully mature, the shell surface is clean, the suture is tight, and there is no dew. 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 Yijun walnut production area may apply to the Quality and Technical Supervision Bureau of Yijun County of Shaanxi Province for the use of the “Special Mark for Geographical Indication Products”, which shall be reviewed by the Shaanxi Provincial Bureau of Quality and Technical Supervision and reported to the General Administration of Quality Supervision, Inspection and Quarantine for approval. . The testing agency of Yijun Walnut is selected by the Shaanxi Provincial Bureau of Quality and Technical Supervision in the testing institutions that meet the qualification requirements.