Summary
This field study investigates how nitrification inhibitor application affects the relative production and emission of different nitrogen oxides and dinitrogen from permanent grassland soil under contrasting moisture regimes. As suggested by the title and journal scope, the work addresses the role of soil water availability in modulating both the efficacy of the inhibitor and the partitioning of denitrification end-products, with implications for greenhouse gas mitigation in grazed pasture systems. The findings contribute to understanding of how soil conditions interact with management interventions to influence nitrogen cycling and atmospheric emissions.
UK applicability
The study was conducted on UK grassland soil and is directly applicable to British permanent pasture systems, particularly those managed for grazing livestock. The findings inform potential strategies for mitigating nitrous oxide emissions from pastures, a significant source in UK agricultural greenhouse gas inventories.
Key measures
N2O, NO, and N2 gas emissions; soil moisture levels; nitrification inhibitor application rates
Outcomes reported
The study measured emissions of nitrous oxide (N2O), nitric oxide (NO), and dinitrogen (N2) from a permanent grassland soil treated with a nitrification inhibitor across different soil moisture conditions. The research examined how soil water availability modulates the effectiveness of nitrification inhibitors in altering nitrogen gas speciation.
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