Field Emissions of Greenhouse Gases From Contrasting Biofuel Feedstock Production Systems Under Different N Fertilization Rates.

Virginia L. Jin1, Gary E. Varvel1, Brian J. Wienhold1, Marty R. Schmer1, Robert B. Mitchell2 and Kenneth P. Vogel2, (1)Agroecosystem Management Research Unit, USDA-Agricultural Research Service, Lincoln, NE, (2)Grain, Forage and Bioenergy Research Unit, USDA-Agricultural Research Service, Lincoln, NE