usdagov 8495550436 20130221-OCE-LSC-0109

---

Size: 1940px × 1289px
Photo credit: © Nature and Science / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ag, conference, daschle, glauber, merrigan, national, nature, outlook, park, science, states, united, usda, vilsack