Summary
This multi-site field study examined nitrogen use efficiency and nitrous oxide emissions from five UK grasslands under contrasting fertiliser regimes and soil conditions. The work provides empirical evidence on how fertiliser application strategy and type influence both nutrient recovery and N₂O release, directly addressing the environmental cost of intensifying grassland production. The findings contribute to understanding the productivity–emissions trade-off central to sustainable grassland and livestock management in the UK context.
UK applicability
The study was conducted across five representative UK grassland sites, making the findings directly applicable to UK grassland management practices and policy. The results inform evidence-based fertiliser recommendations for UK farmers balancing productivity with climate and environmental objectives.
Key measures
Nitrogen use efficiency; nitrous oxide emissions (N₂O flux); nitrogen fertiliser application rates; fertiliser type; soil and site characteristics across five UK locations
Outcomes reported
The study measured nitrogen use efficiency (NUE) and nitrous oxide (N₂O) emissions across five geographically and edaphically diverse UK grassland sites in response to varying nitrogen fertiliser application rates and types. It quantified the trade-offs between fertiliser-driven productivity gains and climate-relevant gaseous emissions from managed grasslands.
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