NirS-type N2O-producers and nosZ II-type N2O-reducers determine the N2O emission potential in farmland rhizosphere soils

Purpose Denitrification process in agricultural fields is a large source of nitrous oxide (N2O) emitted to the atmosphere. The rhizosphere soils tend to be the hotspots of denitrification in agricultural soils. Recent studies have reported the important role of nosZ II in eliminating N2O. However, little was known about how these more recently discovered N2O-reducing microorganisms together with other N2O-producers affected the N2O emission in agricultural rhizosphere soils.