Tracy M Wilson1, Jason G. Warren1 and William R. Raun2, (1)Oklahoma State University, Stillwater, OK (2)Department of Plant and Soil Sciences, Oklahoma State University, Stillwater, OK
Nitrous oxide (N2O) is an extremely potent greenhouse gas (GHG), 310 times more potent than carbon dioxide (CO2) and is currently the number one ozone depleting GHG. Global climate change is driving a need to understand N2O emissions from cropping systems and methods of reducing the emissions. In 2011, vented gas collection chambers were installed in a long-term winter wheat fertility trial in Stillwater, OK. Emissions of N2O were monitored from 4 nitrogen fertilization rates, 0, 40, 80 and 120 lbs N/ac (120 lb rate was split applied) for 7 days following N application then once weekly for the remainder of the year. Data collection continued for 2012 and will occur through 2013. The data will allow producers and policy makers to be aware of N2O emissions that will occur from No-Till winter wheat in Oklahoma.
