65438+July 0984-65438+August 0986, (formerly) worked in Shaanxi Yizhi Agricultural School;
65438+September 0986 —— 65438+July 0989, (formerly) Northwest Agricultural University, studying for a master's degree;
1September 1989 ——1February 1992, teaching assistant of (former) Northwest Agricultural University;
1993 65438+ 10-199965438+2, lecturer of (former) Northwest Agricultural University;
From June 2000 to February 2005, he was an associate professor at Northwest A&F University.
September 2003 to present, Northwest A&F University, studying for a doctorate;
From June 5th, 2006 to October, 2006, he was a professor at Northwest A&F University.