Guangping County Selenium-rich Fruit Science Demonstration Base currently has a pollution-free selenium-rich winter jujube production park of 1,000 acres. The base has successively bred 22 new varieties of fresh jujubes, including selenium-rich winter jujubes, selenium-rich fresh jujubes, selenium-rich apples, selenium-rich grapes, etc., which contain selenium essential for human physiology. Selenium element can prevent diseases and treat cancer, improve human immune function, delay aging, and remove toxic substances from the body. Prevent the occurrence and development of many diseases. Mainly sold to many cities at home and abroad. The product has obtained one invention patent, two design patents and three registered trademarks. In 2005, selenium-rich winter dates were awarded the title of "Chinese Famous Fruit" by the China Fruit Distribution Association and were identified as China's high-quality winter dates base.