4000 years ago, the ancestor of China's agriculture called Houji taught people to grow crops here, making Yangling the birthplace of China's agricultural civilization. In 1934, the National Northwest College of Agriculture and Forestry (processor of Northwest A&F University) was founded here by senior official Yu Youren and compatriot Genaral Yang Hucheng. Since the foundation of RR.China, the nation and Shaanxi Province have successively established 2 agricultural colleges, 5 independent agricultural and forestry research institutes and 3 provincial key secondary agricultural schools. Thus, Yangling is called China's "Agro-science City".