Carya cathayensis

Hickory hickory (Hickory hickory) is the administrative region under the jurisdiction of Sungezhuang Manchu Autonomous Township and Xiaying Town in Jixian County, Tianjin. Letter of Jixian County People's Government on Delineating the Geographical Indication Products of Hickory (Hickory hickory) in Jixian County, Ji Zheng Han [2012] No.88 Enterprise Standard of Tianjin Jizhou Green Food Co., Ltd.: Q/12JX4395-2012 Technical Specification for Hickory Production I. Variety Liaohe No.1. 2. Site conditions Within the production area, the altitude is below 200m, the relative height is 50-100m, the soil type is limestone leaching cinnamon soil, the soil pH value is 6.2-8.0, the soil thickness is over 1m, and the organic matter content is ≥1.4%. 3. Cultivation management 1. Seedling raising: local walnut seedlings are used as rootstocks for grafting and propagation of excellent strains. 2. Planting: (1) Planting time: from late March to early April. (2) Planting density: the number of plants planted per hectare is ≤750. (3) Fertilization: 50 tons of organic fertilizer is used per hectare every year. 3. Environmental and safety requirements: The use of pesticides and fertilizers must comply with the relevant national regulations and must not pollute the environment. Iv. harvesting 1. harvesting time: from early September to mid-September. 2. De-green: manual or mechanical de-green skin. 3. Drying: naturally drying, with water content ≤6%. Five, quality characteristics 1. Sensory characteristics: (1) Fruit type: nut round, smooth shell, light color, thin shell. (2) Nuts: full, yellow-white, round and fragrant in taste and light in astringency. 2. Physical and chemical indexes: transverse diameter ≥34mm, single fruit weight ≥12g, shell thickness ≤1.5mm, kernel rate ≥50%, water content ≤6.0%, and fat content ≥ 58.5% to 64.5%. 3. Safety and other quality and technical requirements: product safety and other quality and technical requirements must comply with relevant national regulations. Carya cathayensis is a geographical indication protection product.
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