Nitrous Oxide Emissions From Winter Wheat.

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.