Long-Term Tillage Studies: What's New and What's Surprising?.
Virginia L. Jin1, Gary E. Varvel1, Marty R. Schmer2, Brian J. Wienhold3, Jane M-F Johnson4 and Steve DelGrosso5, (1)Agroecosystem Management Research Unit, USDA-ARS, Lincoln, NE, (2)Agroecosystem Research Management Unit, USDA ARS, Lincoln, NE, (3)UNL, East Campus, USDA-ARS, Lincoln, NE, (4)USDA-ARS, Morris, MN, US, (5)USDA/ARS, Fort Collins, CO