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What is Ningshan walnut? Authentic Shaanxi Ningshan specialty: Ningshan walnuts
Content summary:Do you want to know what Ningshan walnuts are? This article is a detailed introduction to the special product of Ningshan in Shaanxi Province - Ningshan Walnut. It was compiled and edited by the editorial team of China Specialty Network after reviewing and collecting relevant information on Ningshan Walnut. The full text takes about 6 minutes to read, mainly including the basic introduction of Ningshan Walnut and its nutritional value? Wait
Basic Introduction to Ningshan Walnuts
Walnuts, also known as walnuts, are one of the four major dried fruits in the world (the other three being almonds, cashews, and hazelnuts). It is said that walnuts are originally from Iran and Afghanistan, and were brought back by Zhang Qian during his mission to the Western Regions in the Han Dynasty. At that time, our country called the people of the Western Regions the Hu people, so walnuts were also called walnuts. Ningshan County belongs to the rocky mountainous area of Qinling Mountains, located at the southern foot of Qinling Mountains, with continuous and interlaced mountains. The annual average temperature in the entire region is around 11 ℃, with severe winters and hot summers. The annual precipitation is 800 millimeters, belonging to the temperate continental monsoon climate zone. The climate characteristics of Ningshan are perfectly suitable for the growth and development of walnuts. So, walnuts are widely distributed here, and can grow in deep mountains, shallow mountains, hills, and flat dams. The conditions are suitable, and there are many walnut species with vigorous growth and high yield. The quality is also quite good. The local people describe it as "Walnut Slope, Walnut Gully, Walnut Needle, Walnut Road, with walnut trees covering the mountains and fields, and walnuts hitting people's heads."
Walnut trees in Ningshan are generally about 15 meters high and have a breast height diameter of about Newton meters. The largest one reaches a height of 25 meters, with a breast height diameter of 2 meters and a crown width covering an area of about one acre. Most of the walnut trees here begin to bear fruit in eight to nine years. There is a saying among the masses that goes, 'Peach for three years, apricot for three years, and walnuts for ten years.'. If managed well, early results can be achieved. Generally, after thirty years, it enters the peak fruiting period, and the fruiting period can reach two to three hundred years, some even up to five hundred years or more. There are many excellent varieties of walnuts in Ningshan County. The varieties that are widely cultivated include round cotton kernel walnut, large cotton kernel walnut, large round light walnut, light skin exposed walnut, early maturing walnut, etc 1. Supplementing the brain, increasing memory, and promoting brain and nervous system development Linoleic acid is crucial for the healthy development of the brain, retina, skin, and kidney function in fetuses and infants. . At the same time, walnut oil is rich in phospholipids, which can increase cell activity and improve memory and intelligence levels. It is an important brain nourishing element and a necessary nutrient for the development of infant brain nerves and visual function. Trace elements such as zinc and manganese are key components of the pituitary gland 2. Promote retinal development Walnuts are rich in natural linolenic acid and vitamin A, which are crucial for the development of the retina. They prevent night blindness and vision loss, and help treat various eye diseases (vitamin A can promote the formation of photoreceptors in the eye) 3. Promote calcium absorption to help bone development Rich in natural vitamins A and D - can promote calcium absorption to help bone and tooth growth 4. Protect the gastrointestinal tract, moisturize the intestines and bowels, and nourish the lungs Walnuts contain a large amount of unsaturated fatty acids due to their low acidity<65340 And it is fresh and pollution-free, which can reduce the buffering power on the baby's gastrointestinal tract and will not burden the baby's internal organs. The fatty acid configuration is close to breast milk and Ω -3 The ratio of omega-6 fatty acids is 1:6, which is easy for babies to digest and absorb. Linoleic acid can moisturize the intestines and promote bowel movements. 5. Promote hair growth. Walnuts contain rich nutrients that promote brain development and hair growth. 6. Prevent and relieve skin eczema. Linoleic acid and linolenic acid in walnuts have anti-inflammatory and preventive effects on eczema and dermatitis. 7. Promote growth and development, balance metabolism. 5. Walnuts contain abundant unsaturated fatty acids, natural vitamins, and trace elements that can promote baby growth and development, balance metabolism