The impact of slurry application technique on nitrous oxide emission from agricultural soils

▶ Average N2O emission factor was 0.9% (n = 35), ranging from −0.2% to 7.0%. ▶ Slurry injection increased N2O emission in comparison to surface application. ▶ N2O emission factors increased at increasing N application rates. ▶ Total direct and indirect N2O emissions were similar for surface-applied and injected cattle slurries.