Huanghua pecan is produced in Jixian County, Tianjin. It was called "Yuyang" in ancient times. It was renamed as Jixian in the second year of the Republic of China. Now it is under the jurisdiction of Tianjin City. It is located in the heart of Beijing, Tianjin, Tang and Chengcheng. Although the area is small, However, the agricultural and sideline products are abundant, and the natural environment is beautiful, which is rich in high-quality agricultural products. Huanghua pecan is the most representative specialty of Jixian.

Yellow flower pecan, produced in Jixian County, Tianjin (now Yinzhou District), the main varieties are round walnut, cotton walnut, long walnut, flat walnut, small cotton, cotton and walnut. Among them, round walnuts have the largest cultivation area, the highest yield and the best quality. Its fruit is thin and thin, the weight of single fruit is about 17 grams, the shell surface is smoother, the milk is white and the rate of kernel is more than 50%, and the whole kernel or half kernel can be produced. Jixian County is one of the six largest walnut producing areas in the country. The per capita arable land is less than 1 mu, and the underground is full of pebbles. It is not suitable for growing grain, but it is rich in minerals and has good permeability. It is suitable for planting dried fruits. Today, half of the farmers’ income comes from fruit trees. The development of walnuts is also a heritage of culture. During the Qing Dynasty, this was the path of the emperor's Fuling. The tribute of Sungezhuang walnut was "oily but not greasy". It was designated by the Emperor Qianlong as a royal walnut, and the inscription "but laughed for the perennial medicine, not as good as this product." walnut". It is rich in high-quality agricultural products. Huanghua pecan is the most representative specialty of Jixian. The origin of the yellow pecan is below 200 meters, and the soil is fertile. The yellow pecan fruit is hard and has a round appearance. The skin of the husk is smooth, the color is light, and the shell is thin. Open the walnut shell, you can see the full walnut kernels, the nuts are yellowish white, the taste is mellow and round, and there is a slight bitterness. In May 2013, Huanghua Pecan was approved by the State Administration of Quality Inspection as a geographical indication protection product. Walnut is the best product for Jianzhi and Buddhism. Walnut kernel is rich in various trace elements needed by the human body, especially linoleic acid glyceride, which not only lowers cholesterol, but also helps to relieve high blood pressure. It is the best for patients with such diseases. Snack foods. Eating walnuts often helps to supplement brain nutrition, and because the shape of walnuts is like the brain, the Chinese who believe in "what to eat" have a special liking for walnuts. According to the "Compendium of Materia Medica", walnuts can "make kidney and brain, and benefit wisdom." Every year from late March to early April, it is the best season for planting walnuts. Every season, you can see the busy figure of the fruit growers. All the yellow pecans use organic fertilizers, pesticides, fertilizers, etc. are in line with the relevant national regulations, will not cause pollution to the environment, and will not cause harm to people's health. In September, it is the season of harvest. The walnut trees are full of fruit. The growers remove the green skin by hand or by machine, and then naturally dry it, and the full-grained walnuts are visible.

Technical requirements for quality of yellow pecans I. Variety Liaohe No.1, Liaohe No.4, Zhonglin No.1 and local traditional varieties. 2. Site conditions The altitude of the production area is below 200 meters above sea level and the relative height is 50 to 100 meters. The soil type is limestone leaching cinnamon soil. The soil pH value is 6.2 to 8.0, the soil layer thickness is more than 1 meter, and the organic matter content is ≥1.4%. Third, cultivation management Breeding: The local walnut seedlings are used as rootstocks for grafting and breeding. 2. (2) Planting density: ≤750 plants per hectare. (3) Fertilization: 50 tons of organic fertilizer per hectare per year. 3. Environmental and safety requirements: The use of pesticides, fertilizers, etc. must comply with relevant national regulations and must not pollute the environment. Fourth, harvesting Harvest time: from early September to mid-September. 2. 3. Dry: naturally dry, water content ≤ 6%. Five, quality characteristics Sensory features: (1) Fruit shape: the nut is round, the shell surface is smooth, the color is light, and the shell is thin. (2) Nuts: full, yellowish white, round and fragrant, with a light taste. 2. 3. Safety and other quality technical requirements: Product safety and other quality technical requirements must comply with relevant national regulations.

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Producers within the scope of Huanghua pecans may submit an application for the use of the “Special Mark for Geographical Indication Products” to the Quality and Technical Supervision Bureau of Jixian County, Tianjin, and shall be notified by the Tianjin Quality and Technical Supervision Bureau and reported to the AQSIQ for approval. The statutory testing agency for the yellow pecan is designated by the Tianjin Quality and Technical Supervision Bureau.