Growing characteristics: 1, 5-10 degrees Celsius temperature is preferred; 2, loess geology and contains iron oxide nodules to form a large amount of water storage of high-quality soil.

Exterior and interior characteristics: the general heart of a tree but 50 grams of weight, while the late heart of each tree can weigh up to 2500 grams, the biggest feature is the vegetable quality is tender, crispy and sweet, unique flavor, nutrition is very rich, rich in vitamins, calcium, zinc and many other nutrients. It is rich in vitamins, calcium, zinc and other nutrients. It has the effect of diluting and removing intestinal toxins, treating constipation, preventing intestinal cancer, beautifying and health care, improving body immunity and strengthening immunity. The sun-dried vegetables is the best soup ingredients, soup flavor sweet, vegetable aroma is particularly strong, with a clear heart and lungs, to remove heat and detoxification of the medicinal effect.