Long-Term Tillage Studies: What's New and What's Surprising?.
Virginia L. Jin, USDA-ARS, Lincoln, NE, US, Gary E. Varvel, Agroecosystem Management Research Unit, USDA-ARS, Lincoln, NE, Marty R. Schmer, UNL, East Campus, USDA-ARS, Lincoln, NE, US, Brian J. Wienhold, UNL, East Campus, USDA-ARS, Lincoln, NE, Jane M-F Johnson, USDA-ARS, Morris, MN, US and Steve DelGrosso, USDA/ARS, Fort Collins, CO