Long-term biochar amendment increased dissimilatory nitrate reduction to ammonium concomitantly suppressing denitrification and anaerobic ammonium oxidation in deep alkaline paddy soil
Dissimilatory nitrate reduction to ammonium (DNRA) conserves soil nitrogen (N), whereas denitrification and anaerobic ammonium oxidation (anammox) can result in soil N loss. Despite biochar’s potential to modulate N cycling pathways, its effects on dissimilatory nitrate reduction in alkaline paddy soils remain poorly c...