Summary
This field study assessed how nitrification inhibitor application influences the emission of nitrogen oxides (N2O, NO) and N2 from permanent grassland under different soil moisture regimes. The research demonstrates that soil moisture is a critical modulator of nitrification inhibitor efficacy in controlling relative emissions of different nitrogen loss pathways. The findings contribute to understanding practical strategies for mitigating agricultural greenhouse gas emissions from grazed grasslands, a substantial source of N2O in UK livestock production systems.
UK applicability
Directly applicable to UK permanent grassland management and livestock farming, where N2O emissions from grazed pastures represent a significant greenhouse gas source. The findings can inform evidence-based recommendations for nitrification inhibitor use across varying UK soil moisture conditions and seasons.
Key measures
Nitrous oxide (N2O), nitric oxide (NO), and dinitrogen (N2) gas emissions; soil moisture levels; nitrification inhibitor treatment effects
Outcomes reported
The study measured emissions of N2O, NO and N2 from permanent grassland soil treated with nitrification inhibitor under varying soil moisture conditions. It examined how moisture regimes modulate the effectiveness of nitrification inhibitors in partitioning nitrogen loss pathways.
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