Summary
This 2020 study presents application of a triple 15N isotopic tracing methodology to resolve concurrent nitrogen transformation processes in a UK grassland soil. The triple-tracer approach, as suggested by the title, provides improved mechanistic understanding of soil nitrogen cycling in temperate pasture systems, potentially informing nitrogen management in grassland agriculture.
UK applicability
As this research was conducted in UK grassland conditions, the findings directly inform nitrogen dynamics and cycling in British pasture soils used for livestock production. The methodology and results are directly applicable to UK grassland management and fertiliser recommendation development.
Key measures
15N-labelled tracer recovery; rates of nitrogen mineralisation, nitrification, and denitrification; soil nitrogen transformation pathways
Outcomes reported
The study applied a triple 15N isotopic tracing technique to quantify and distinguish different nitrogen transformation pathways (mineralisation, nitrification, denitrification) occurring simultaneously in UK grassland soil. This approach enabled differentiation of N fate and fluxes that are difficult to resolve using conventional single-tracer methods.
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