Table 5: Mean season-long, area- and yield-scaled nitrous oxide (N2O) emissions and total global warming potential (GWP) among tillage practice [i.e., conventional tillage (CT) and no-tillage (NT; n = 8)]-urea fertilizer type [i.e., N-(n-butyl) thiosphosphoric triamide (NBPT)-coated and non-coated urea (n = 8)] treatment combinations measured in 2017 at the Rice Research and Extension Center near Stuttgart, AR.
|Treatment combination||Area-scaled N2O emissions
(kg N2O-N ha-1 season-1)
|Yield-scaled N2O emissions
[kg N2O-N (Mg grain)-1]
(kg CO2 equivalent ha-1 season-1)