usdagov 7455109620 20120626-OSEC-TEW-2506
Size: 1797px × 1390px
Photo credit: © Nature and Science / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: .., act, agriculture, agronomy, aplu, building, chancellor, ejeta, greenwood, hawaii, illinoisspeakers•tom, morrill, natural, nature, president, professor, purdue, reagan, resourcesmoderator•phyllis, ronald, science, secretary, university, vilsack, washington, wise, •..., •gebisa