Nanjiang Walnut
Nanjiang Pecan is produced in Nanjiang County, Bazhong City, Sichuan Province. Nanjiang pecan shell is thin, with many nuts and thick, taste alcohol. With spleen appetite, Runpei strong kidney, nourishing rehabilitation, prevention of coronary heart disease, reduce blood lipids. In March 2006, the General Administration of Quality Supervision, Inspection and Quarantine approved the protection of Nanjiang Pecans as a geographical indication product.
Walnut, also known as walnut, is an angiosperm gate, dicotyledonous class, walnut, walnut, distribution in Nanjiang County four categories, namely Nanjiang Carya, iron walnut, wild walnut, walnut oysters. Nanjiang Carya is widely distributed in the 400-1800 meters above sea level. It is an economic tree species in Zhongshan that is resistant to drought and high temperature. Nanjiang County is located in the south of Micangshan, east and Tongjiang, south and south of Pakistan, southwest and Wangcang, north and adjacent to Nanzheng of Shaanxi, north latitude 31°50'—32°45', longitude 106°27'—107°10 The area is long and narrow, covering a total area of ​​3417 square kilometers. The forest coverage rate is 47%. The altitude is 370-2,508 meters. The ridges are steep and narrow, and the valleys are cut strongly. The distribution area of ​​barren hills, wasteland and slope farmland is very broad. Purple soil, yellow soil and yellow-brown soil are the main types, with humid climate, dry soil, annual average temperature of 16.2°C, frost-free period of 259 days, annual average accumulated temperature of 5096°C, average annual rainfall of 1161mm, annual sunshine of 1570 hours, relative humidity of 64-79% . Suitable for growing Nanjiang Carya and achieving high yield, stable production and high quality area of ​​20,000 hectares, it is the most ideal area for developing walnuts.
Introduction of Nanjiang Carrot in Nanjiang Since the Han Dynasty, it has been more than 1,000 years old. It has begun to take shape in the 1970s and has been well-known within and outside the province. It has the ability to export 400-600 tons. At present, 800,000 bears have been formed. 5 million mu, output 1.5 million kilograms, walnut production value of 750 million.
Nanjiang Pecan is produced in the scenic area of ​​Guangwu Mountain in the scenic spot of the country. Its shells are thin and thick, with a taste of alcohol. Walnut is warm, sweet, non-toxic, has stomach, blood, lungs, repose and other effects, often eat hickory, kernel products, with spleen appetizers, Run Pei strong kidney, nourishing recovery, prevention of coronary heart disease, lower blood lipids effect. It is a healthy, nutritious natural green nutritional food. The nutritional value of pulp is very rich. Pecan nut contains 7.8-9.6% of protein, essential amino acids account for more than 7 kinds and content is as high as 25%, and also contains 22 kinds of mineral elements, which have a necessary effect on the human body, calcium and magnesium with higher nutritional value Phosphorus, zinc, iron content is very rich.
According to the “Regulations on the Protection of Geographical Indication Productsâ€, the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China (AQSIQ) organized a review of the applications for the protection of geographical indications products of Nanjiang Pecan. After passing the review, it was approved to implement the protection of geographical indication products of Nanjiang Pecan since March 23, 2006.
protected range
The scope of protection of geographical indications products of Nanjiang Pecans is based on the scope of the letter “Defining the scope of protection of geographical indication products of Nanjiang Pecan†(Nanfufa [2004] No. 45) issued by the People’s Government of Nanjiang County, Sichuan Province, which is Nanjiang County of Sichuan Province. Has administrative jurisdiction.
Quality requirements
(a) Variety.
Walnut walnuts, Juglans regia L. species, local elite walnut seed populations or preferred materials.
(b) site conditions.
600 meters to 1600 meters above sea level, soil texture sandy soil or loam, pH 6.0 to 7.5, organic matter content of 1.2% to 3%, sunny zone.
(c) Cultivation.
1. Site preparation fertilization: The implementation of block preparation. Each plant applies more than 25 kg of farmyard fertilizer and more than 1 kg of phosphate rock. No chemical fertilizers are applied during fertilization.
2. Seedling selection: Select the excellent seedlings that have been tested and identified.
3. Colonization: Colonization in spring and autumn. The planting hole is not less than 80cm×80cm×80cm, and can cover water and fertilizer with no less than 1m×1m.
4. Pest control: Use physical, mechanical, and biological control measures to ban chemical pesticides.
(d) fruit picking and processing.
When the skin is changed from dark green to yellowish green or light yellow and some of the green skin is cracking, picking begins. The peeled walnuts were peeled, washed and dried, and the water content was ≤ 8%.
(e) Storage.
The treated walnut fruits should be stored in a dry and shaded place. The average package storage period should not exceed 6 months, and the vacuum package storage period should not exceed 10 months.
(6) Quality characteristics.
1. Sensory features: nut fruit surface smooth, low suture flat, thin shell without revealing kernel, yellowish white to light yellow, nucleolus full, good flavor, flavor or slightly astringent, easy to take the kernel.
2. Physical and chemical characteristics: dry fruit weight 7.3g to 17.3g, shell thickness 0.8mm to 1.2mm, kernel rate 55.8% to 65.5%, fat content ≥60%, crude fat content 63.7% to 76.21%, protein content ≥11.6 %, amino acid content ≥ 1.05%.
Special signs
Producers within the scope of protection of Nanjiang Pecans geographical indication products may apply to the Nanjiang County Bureau of Quality and Technical Supervision for the use of “Special Marks for Geographical Indication Productsâ€, and shall be approved by the State General Administration of Quality Supervision, Inspection and Quarantine.
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