What are the growth characteristics of the "four nuts" walnut? What are the places of origin?

As we all know, the nutritional value of walnuts is extremely high, not only can enhance our physique, but also has the effect of nourishing the brain. It's walnut harvest season. So, what are the growth characteristics of walnuts? Where is the origin of walnuts? Let's get to know each other.

What are the growth characteristics of walnuts?

Walnut likes light, cold resistance, drought resistance, disease resistance, adapt to a variety of soil growth, like fertile and moist sandy loam, like water, fertilizer, like yang, at the same time, the requirements for water and fertilizer are not strict, after defoliation to germination before pruning is not suitable, easy to produce bleeding. It is suitable for growing most of the land. Like fertile moist sandy loam, common in mountain valleys on both sides of the deep soil layer.

II. What are the origins of walnuts?

Walnut is produced in North China, Northwest China, Southwest China, Central China, South China and East China, southern Xinjiang. It is distributed in Central Asia, West Asia, South Asia and Europe. Born on hillsides and hilly areas at altitudes of 400-1800 m, it is commonly cultivated in plains and hilly areas of China.

Walnut is widely distributed in China, north to Heilongjiang, south to Yunnan, Guizhou, west to Xinjiang, east to Shandong, Liaoning, most regions of the country have walnut distribution. As for the distribution of walnuts conforming to Wenwan standard, they are mainly produced in North China, Northwest China, Northeast China and Southwest China. Among them, Beijing, Hebei, Tianjin, Shanxi and other places of Wenwan walnut quality is the most outstanding, but also the origin of traditional fine varieties. Climate and environment are also conducive to the cultivation and growth of Wenwan walnut.

Northwest China, including Shanxi, Shaanxi, Gansu, Ningxia, Xinjiang and other places. Shaanxi Qinling mainly produces autumn walnuts such as lanterns, which are large in size, full in shape and many burrs. Production is also high. Other areas of Shaanxi also produce official hats and other varieties, large in size, shape, cortex and Beijing and other places of official hat difference. Some mountainous areas of Xinjiang also have wild pecans, belonging to autumn walnut varieties, quality is general. The situation in Gansu and Ningxia is similar.

Northeast China, Heilongjiang, Jilin, Liaoning, mainly produces autumn walnut.

Hetian, Xinjiang is the main producing area of walnut.

Xinjiang Kuqa area of paper walnut, Uighur people call it "Keke Yi", meaning thin shell, oil content of 75%. This variety results quickly, and the masses describe it as "one year, two years old, three years full of walnuts hanging basket."

Fenyang Shanxi, Xiaoyi and other walnut to thin skin, kernel full, delicate meat known.

The walnut skin in the Qinling Mountains of Shaanxi Province is as thin as egg shell, commonly known as "egg skin walnut". The best variety of "cotton walnut", thin skin and thick meat, two walnuts in the hand, a little pinch, walnut skin broken.

Qingxiang walnut in Dingzhou area of Baoding, Hebei Province has a skin thickness of about 1mm, beautiful and correct dried fruit, smooth fruit surface, full kernel, light color, light astringent taste, crispy taste, storage resistance, not easy to change flavor, not easy to damage, suitable for mechanical harvesting and peeling.

In addition, Hangzhou produced small walnut, make salt and pepper spiced walnut, also very popular with southerners.