Shimen walnut has the characteristics of large, Renfeng, thin skin, easy to take kernels, high fat and protein content, and sweet flavor. It has become a local famous product in the late Ming and early Qing dynasties, and is known as the "Shimen walnut and Shizhen". . Shimen Walnut launched the "four golden flowers": Shimen Yuanbao, Shimen Shuobao, Shimen Dragon Ball, Shimen Kuixiang.

I. Product Overview Shimen walnut has the characteristics of large, Renfeng, thin skin, easy to take kernel, high fat and protein content, and sweet flavor. It has become a local famous product in the late Ming and early Qing dynasties. The reputation of Jane. Shimen Walnut launched the "four golden flowers": Shimen Yuanbao, Shimen Shuobao, Shimen Dragon Ball, Shimen Kuixiang. 2. Landmark Geography Lulong County is a warm temperate continental monsoon climate zone with an annual average temperature of 10.7 °C. Walnut spring leaves, flowering and young fruit temperature should not be too low, summer temperature should not be too high, Lulong's climate just meets the requirements of this growth condition. The average annual precipitation of Lulong is 725mm, the soil is loose, the pH range is 6.5-8.3, it is weakly alkaline, and the soil layer is deep. Allows the walnut to breathe smoothly, rooted deep, and the lateral roots are prosperous, which can better absorb nutrients. In addition, Lu Long's average sunshine of 2739 hours, good light provides a good foundation for the growth of walnuts. These are all favorable conditions for walnuts. The quality of "Shimen walnut" grown under such climatic soil conditions is excellent. Third, the cultural background Lulong County walnut cultivation has a history of thousands of years, is the famous hometown of walnuts. As early as the Ming Dynasty, it became a local famous product. It began to export to Japan in the late Qing Dynasty, and later expanded to more than 20 countries and regions. It was called "Shimen Walnut" in the international trade market with its excellent quality. Famous brand of walnuts in the world. IV. Brand Building After the founding of the People's Republic of China, the party and the government attached great importance to the development of walnut production. In 1957, the national walnut production site will be held in Lulong. In the 1950s and 1970s, the walnut cultivation area in the county was up to 30,000 mu. After the low price of walnuts, the production of walnuts shrank. In the 1990s, the cultivation area was reduced to 5,000 mu. After entering the 21st century, with the improvement of the living standards of the domestic people and the increase in the demand for walnuts in the international market, the price of walnuts has increased year by year. The majority of cadres and masses have re-visited the production advantages of walnuts and stimulated the enthusiasm for planting. Since 2003, the county party committee and county government have taken the opportunity to restore and develop walnut production as a major measure to adjust the agricultural industrial structure and increase farmers' income, and vigorously develop walnut production. At the beginning of 2008, the county party committee and county government conscientiously implemented the spirit of the 17th National Congress of the Communist Party of China, guided the full implementation of the scientific development concept, based on the resource advantages and the brand advantage of “Shimen Walnut”, and formulated the development of walnut industry in the county with the goal of Fuminqiang County. The plan proposes to comprehensively promote the “Shimen Walnut” industry on the basis of building a good quality walnut base. Strive to develop 200,000 mu of high-quality walnuts in the county by 2015, and build Lulong County into a well-known walnut production, processing and sales base in the country, making the walnut industry another pillar industry for the county's economic development and mass increase. By 2020, after all the walnuts planted have entered the fruiting period, the annual output of walnuts in the county can reach 35,000 tons, and the annual output value of the walnut industry reaches 2 billion yuan.

Shimen walnut quality technical requirements (a) varieties. Ingots, Dragon Ball, Kuixiang, Shuobao and other varieties selected from the local walnut population. (2) Site conditions. The soil type is selected from limestone, which is mainly composed of limestone and soil. The texture is medium or sandy loam soil, the soil thickness is ≥1 m, the pH value is 7 to 7.9, the soil organic matter content is ≥0.8%, the light is sufficient, the drainage is good, the water table is Below 2m. (3) Cultivation management. 1. Nursery: Choose a strong affinity walnut plant (Juglans) as a rootstock for graft propagation or other asexual reproduction. 2. Colonization: (1) Time: in early spring in April or after autumn leaves until the soil freezes. (2) Density: ≤ 495 plants per hectare. 3. Fertilizer and water management: (1) Fertilization: mainly based on organic fertilizer, the result of the annual application of high-quality organic fertilizer ≥ 25000Kg / hectare. (2) Irrigation: From May to June each year, the soil of the walnut garden is irrigated 1 to 2 times. 4. Plastic pruning: Select the appropriate tree shape according to site conditions and planting density, cultivate the main side branch and the result branch group, make full use of light energy and reasonable load. 5. Environmental and safety requirements: The use of pesticides, fertilizers, etc. must comply with relevant national regulations and must not pollute the environment. (4) Harvesting and post-harvest handling. 1. Harvesting time: 20% to 30% of walnut green fruit is naturally cracked or the green skin begins to harvest from green to yellow. 2. Post-harvest treatment: After harvesting the walnut green fruit, under the condition of keeping the nut quality unchanged, the natural or mechanical peeling skin is used, dried or dried, and the water content is ≤8%. (5) Quality characteristics. 1. Sensory characteristics: variety nut shape fruit shape index shell color is easy to use seed color color seed flavor flavor yuanbao ingot shape 0.81 ± 0.03 light yellow brown easy to take whole kernel light yellow white fragrance, not round dragon ball round 0.90 ± 0.04 light yellow brown Easy to take whole kernels yellowish white fragrant, slightly 涩 涩 圆形 round 0.92 ± 0.03 light yellow brown easy to take whole kernels yellow white and strong fragrance, not 涩 涩 宝 near 0.93 ± 0.05 light yellow brown easy to take whole kernels yellow or yellowish Physicochemical index: variety single fruit weight (g) shell thickness (mm) kernel yield fat content protein content ingot ≥13.00.9-1.0 ≥ 56% ≥ 66.0% ≥ 16.0% Dragon Ball ≥ 12.01.0-1.1 ≥ 52%≥70.0%≥15.0%Quuixiang≥12.01.0-1.2≥53%≥66.0%≥17.0% Shuobao≥17.01.0-1.2≥50%≥59.0%≥20.0%3. Safety requirements: product safety index It is necessary to meet the relevant regulations of the state for similar products.

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Producers within the scope of protection of Shimen walnut GI products may submit an application to the Quality and Technical Supervision Bureau of Lulong County, Hebei Province for the use of “Special Marks for Geographical Indication Products”, which shall be reviewed by the Hebei Provincial Bureau of Quality and Technical Supervision and announced by the General Administration of Quality Supervision, Inspection and Quarantine. Approved. The statutory testing agency for Shimen walnut is designated by the Hebei Provincial Bureau of Quality and Technical Supervision.