Long-term Agroecosystem Research in the Northern Great Plains.

Marty Schmer1, Matt Sanderson2, Mark A Liebig3, Brian Wienhold1, Tala Awada4, Sharon Papiernik5, Shannon Osborne5, William Kemp6, Jane Asiyo Okalebo7 and Walter Riedall5, (1)USDA Agricultural Research Service, Lincoln, NE, United States, (2)USDA ARS, Northern Great Plains Research Lab, Mandan, ND, United States, (3)USDA-ARS NGPRL, Mandan, United States, (4)University of Nebraska Lincoln, Lincoln, United States, (5)USDA-ARS, Brookings, SD, United States, (6)USDA-ARS, Fargo, United States, (7)University of Nebraska Lincoln, Lincoln, NE, United States