Luonan specialty walnuts are large, full, thin and high quality, which are favored by domestic and foreign consumers. The medical value of Luonan walnut is quite high, and the health care effect is obvious. It has the functions of “reinforcing qi and nourishing blood, replenishing kidney and solidifying essence, warming the lungs and intestines, supplementing the brain and prospering life, passing through the blood and stimulating the hair and nourishing the skin”. Long-term consumption can promote development, brain and brain, enhance memory, improve immunity, and have obvious anti-cancer and anti-cancer effects.

Luonan is located in the southern part of the eastern Qinling Mountains. It has abundant sunshine, abundant rainfall and mild seasons. The natural conditions are most suitable for the growth and development of walnuts. It is the hometown of walnuts. According to the records of Luonan County, Luonan walnut has a cultivation history of more than 2,000 years. Especially in 1958, Mao Zedong’s instructions on “one liter of walnut per household in Shangluo District” were published. The people of the county were widely planted and scientifically managed to form. The scale. In recent years, the county has grasped the science and technology and developed it in one hand, making the county's walnut production into the track of intensive management, large-scale development, improved planting, scientific management and industrial development. At present, there are 6.8 million plants (including 3.8 million fruits). The average annual output in normal years is 2.5 million centimeters, and the highest annual output is 3.355 million kilograms in 1978. Luonan walnut has a long-standing reputation in the country and has a high reputation in the world. Since 1964, foreign trade has been exported, with an average annual export volume of 1,200 tons. It has been exported to Germany, Canada, Syria, Kuwait, Italy, New Zealand, Japan and other countries and is very popular among international friends. In March 2000, it was officially named by the State Forestry Administration and the China Economic Forestry Association as “China's Famous Excellent Economic Forest--Walnut Township”, which was welcomed by merchants at the “1999 China International Agricultural Expo” and previous Yangling Agricultural Expo.

Luonan walnut quality technical requirements First, the product name Luonan walnut. Second, the variety of good varieties of Xiluo 1, 2, 3 and the local performance of the walnut type. Third, the site conditions have an average elevation of 800 to 1200 meters. The soil is mainly yellow brown soil and cinnamon soil. The pH value is 6.2 to 8.2, which is neutral to slightly alkaline. The soil organic matter content is 14.6g/kg or more. Fourth, cultivation management 1. Seedling cultivation: grafting and breeding. 2. Colonization: Planting density is ≤10 per 0.067 hectares (mu). 3. Water and fertilizer management: Fertilization: Before harvesting, before defoliation, combined with deep soil turning, 30 to 50 kg of base fertilizer per plant; germination and fruit expansion period, 1 to 3 kg of fertilizer per plant. 4. Plastic trimming: The tree structure is dominated by trunk sparse. The method is mainly based on sparseness and appropriate short-cut. The pruning period is one and a half months after the defoliation or before the germination, and the pruning is appropriately supplemented in the summer. 5. Pest control: The use of pesticides must comply with relevant national regulations. 6. Fruit harvesting: When the green peel changes from green to yellow-green, about 1/4 of the green peel begins to harvest when it is naturally cracked. V. Product quality characteristics (1) Sensory characteristics The project indicators require that the fruit shape is oblong, the tight color of the suture is yellow-brown, the color of the kernel is white and the taste is oily, and the taste of the fruit is small, the skin is thin, and the size is uniform ( 2) Physical and chemical characteristics Project indicators require crude fat%≥64.5 crude protein%≥18.4 calcium mg/100g≥158.2 iron mg/100g≥1.83 phosphorus mg/100g≥308.3 selenium ug/100g≥7.05 (III) Quality and safety requirements Product safety and Other quality technical requirements must comply with relevant national regulations.

Apply to：
Producers within the Luonan walnut production area may apply to the Luonan County Market and Quality Supervision Administration 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 detection mechanism of Luonan walnut is selected by the Shaanxi Provincial Bureau of Quality and Technical Supervision in the testing institutions that meet the qualification requirements.