Pulse Brain · Growing Health Evidence Index
Peer-reviewed

“Hot spots” of N and C impact nitric oxide, nitrous oxide and nitrogen gas emissions from a UK grassland soil

Nadine Loick, E. R. Dixon, Diego Ábalos, Antonio Vallejo, Peter J. Matthews, Karen McGeough, Catherine Watson, Elizabeth M. Baggs, L. M. Cardenas

Geoderma · 2017

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Summary

Agricultural soils are a major source of nitric- (NO) and nitrous oxide (N<sub>2</sub>O), which are produced and consumed by biotic and abiotic soil processes. The dominant sources of NO and N<sub>2</sub>O are microbial nitrification and denitrification, and emissions of NO and N<sub>2</sub>O generally increase after fertiliser application. The present study investigated the impact of N-source distribution on emissions of NO and N<sub>2</sub>O from soil and the significance of denitrification, rather than nitrification, as a source of NO emissions. To eliminate spatial variability and changing environmental factors which impact processes and results, the experiment was conducted under highly controlled conditions. A laboratory incubation system (DENIS) was used, allowing simultaneous measu

Source type
Peer-reviewed study
DOI
10.1016/j.geoderma.2017.06.007
Catalogue ID
BFmoakvjs3-67fiut
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