Shexian County walnut, the city of Shexian specialties, one of the "three treasures" in the county. Its characteristics are that the skin is thin and full, the color is golden, and the oil content is as high as 60%. If the two hand-held walnuts touch, the skin is broken, and the whole nucleolus is naturally taken out, which is like a brain-like road, just like a carefully carved antique. Put it in your mouth and chew it more fragrant.

The economic value of Shexian walnut is very high. Nuts are rich in protein, fat, calcium, phosphorus, iron, potassium and carotene, vitamins A, B, C and so on. In addition to raw food, it can be used as raw materials for cakes and sweets, and can also be used for oil extraction. Walnuts are sweet and warm, and they are very effective against certain diseases. According to the "Compendium of Materia Medica" records, it can "enhance blood and nourish blood, moisten and dry phlegm, benefit life door, Li Sanjiao, Wenfei Runchang". The walnut cultivation history of Shexian County has a long history. It has been more than 2,000 years. After the founding of the People's Republic of China, the walnut cultivation effect of the county was gradually obvious. In the early 1960s, the annual output of walnut in the county was 1,250 tons. By the end of the 1970s, the output reached 2,350 tons. By the end of the 1990s, the output reached 3,500 tons. After 1998, the county walnuts entered the stage of industrialization development. In 1998, according to the advantages of dried fruit industry, the county-level county party committee and county government put forward the strategy of “two dragons and one hundred stars” (two dragons, namely walnuts and peppers) to promote agriculture, which injected new vitality and vitality into the development of walnut industry in Shexian County; In 2000, the county government issued the "Notice of the People's Government of Shexian County on Further Accelerating the Construction of the Walnut Industry Base." In the autumn of that year, the county planted 3.5 million holes of walnuts. In 2001, the county government issued the "Technology Corridor Construction of Walnut Garden". Since 2002, the county has adjusted the industrial structure as the main line, further clarified the leading position of walnut in the county, and proposed the goal of building the “China's first walnut township”. In 2004, the annual output of walnut 6000 The remaining tons have an annual output value of more than 48 million yuan. Through standardized planting, the yield and quality of walnuts have been significantly improved. By 2008, 60 counties of walnut standardization parks have been built in the county, and the area of ​​demonstration parks is also expanding year by year. For example, the standard planting area of ​​walnuts in Nanchi Village has been It has reached more than 100 hectares; in 2007, the total output reached about 8 million kilograms, and the price per kilogram was 16 yuan, and the income was about 128 million yuan. They also developed a benign interactive model to develop walnut products through leading enterprises and farmers. In accordance with the development model of “company + demonstration park/demonstration area + farmers”, the chain of walnut planting industry was extended, and order farming was vigorously promoted, realizing the cooperation between enterprises and farmers. win. The seven varieties of walnuts, such as walnuts, thin-shelled walnuts and sandwiched walnuts, are of mixed quality. In order to improve the quality, since the 1980s, Shexian County has carried out the selection of excellent walnut varieties throughout the county. The selection of seeds for technically advanced experts still requires more than ten years, even decades of repeated breeding, not to mention a poor county in the deep mountainous areas is even more difficult. Shexian County is not discouraged, widely mobilizes the masses, organizes forestry technicians, and repeatedly optimizes the walnut trees in the county. After years of arduous selection, abandonment, re-selection, and cultivation, Shexian County has finally selected Qifeng, Lixiang, and Yan. New varieties such as wax shop. By 2006, the walnut breeding in Shexian County had shifted from being a real variety to a variety of varieties, and the varieties were changed from good to bad. According to different site conditions, they mainly promote early varieties with Liaohe No. 1 in areas with good water and fertilizer conditions; late-real varieties with Jinlong No. 1 mainly promoted in areas with poor dry land and site conditions; The large trees in the intercropping of fruit and grain are all high-yield varieties that promote the high-yield and high-yield varieties of Qifeng, Lixiang and Yanxue. Around the walnut, the county has also strengthened the industrial extension, in which walnut oil is made from high-quality walnuts from Shexian County, using scientific methods and refined with traditional techniques. It has nourishing lung, kidney, liver and eyesight, Yixuexue, liver and kidney, strong gluten and bone, and laxative, enhance intelligence and promote growth and development. Its enrichment of oleic acid has a positive effect on lowering cholesterol in human serum and preventing arteriosclerosis and thrombus formation. It is a good choice for all kinds of dishes. It can be cooked, fried, cooked and fried.

Wenxian walnut quality technical requirements (a) varieties. Mian walnut. (2) Cultivation management. 1. Construction: The thickness of the soil layer is more than 1.5 meters, the texture is loose, the soil with good water retention and permeability, sandy loam soil, pH value 6.5 to 8.0. 2. Cultivation techniques: before the leaves of the seedlings are frozen until the soil is frozen, the second grade is selected. And high-quality seedlings without pests and diseases, no mechanical damage; the tree shape is mainly happy, supplemented by the main sparse layer; covered in arid areas. (3) Harvesting and fruit processing. 1. Harvest: The green peel in the walnut fruit changes from green to yellow-green, and about 1/4 of the green skin is naturally cracked. 2. Fruit treatment: Remove the green skin in time after harvesting, rinse the fruit surface with water in time, and dry it to reduce the water content of the nut to below 8%. (4) Quality characteristics. 1. Sensory characteristics: the fruit is medium-sized, the fruit top is flat, the base is smooth, the seed is full, the shell is thin, yellow-brown, dull, and the linen is obvious, but not deep, the suture is slightly raised, and the inner wall is underdeveloped. It is easy to take, and the flavor is strong. The shell thickness is about 1.5mm. 2. Physical and chemical indicators: The oil content is greater than or equal to 60%, containing more than 77% of the essential fatty acids of the human body - linoleic acid and linolenic acid. The kernel yield is ≥45%, the shell fruit is ≤2%, the broken fruit is ≤0.1%, and the dark spot is ≤0.3%.

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Producers within the scope of protection of the Walnut Geographical Indication Products of Shexian County may apply to the County Bureau of Quality and Technical Supervision for the use of the “Special Mark for Geographical Indication Products”, which shall be approved by the General Administration of Quality Supervision, Inspection and Quarantine.