Dimethylpyrazole-based nitrification inhibitors have a dual role in N2O emissions mitigation in forage systems under Atlantic climate conditions

• DOI: 10.1016/j.scitotenv.2021.150670
• Publication Date: 2021-10-04T12:08:41Z
• Authors: Ximena Huérfano; José M. Estavillo; Fernando Torralbo; Izargi Vega-Mas; Carmen González-M...; Teresa Fuertes-Me...
• Keywords: Nitrous oxide

Nitrogen fertilization is the most important factor increasing nitrous oxide (N2O) emissions from agriculture, which a powerful greenhouse gas. These are mainly produced by soil microbial processes of nitrification and denitrification, application inhibitors (NIs) together with an ammonium-based fertilizer has been proved as efficient way to decrease them. In this work NIs dimethylpyrazole phosphate (DMPP) succinic acid (DMPSA) were evaluated in temperate grassland under environmental changing field conditions terms their efficiency reducing N2O effect on amount nitrifying denitrifying bacterial populations responsible these emissions. The stimulation bacteria induced ammonium sulphate was efficiently avoided both DMPP DMPSA whatever water content. population capable up N2 also enhanced provided that sufficiently high low nitrate content occurring. Therefore, showed capacity promote denitrification process mechanism mitigate be promising NI, since it more significant than decreasing ryegrass yield.