Articles | Volume 17, issue 7
https://doi.org/10.5194/bg-17-2021-2020
https://doi.org/10.5194/bg-17-2021-2020
Research article
 | 
16 Apr 2020
Research article |  | 16 Apr 2020

Modelling nitrification inhibitor effects on N2O emissions after fall- and spring-applied slurry by reducing nitrifier NH4+ oxidation rate

Robert F. Grant, Sisi Lin, and Guillermo Hernandez-Ramirez

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Cited articles

Abalos , D., Smith, W. N., Grant, B. B., Drury, C. F., MacKell, S., and Wagner-Riddle, C.: Scenario analysis of fertilizer management practices for N2O mitigation from corn systems in Canada, Sci. Total Environ., 573, 356–365, 2016. 
Akiyama, H., Yan, X., and Yagi, K.: Evaluation of effectiveness of enhanced efficiency fertilizers as mitigation options for N2O and NO emissions from agricultural soils: Meta-analysis, Glob. Change Biol., 16, 1837–1846, https://doi.org/10.1111/j.1365-2486.2009.02031.x, 2010. 
Cambareri, G., Drury, C., Lauzon, J., Salas, W., and Wagner-Riddle, C.: Year-round nitrous oxide emissions as affected by timing and method of dairy slurry application to corn, Soil Sci. Soc. Am. J., 81, 166–178, 2017. 
Chantigny, M. H., Rochette, P., Angers, D. A., Goyer, C., Brin, L. D., and Bertrand, N.: Nongrowing season N2O and CO2 emissions – Temporal dynamics and influence of soil texture and fall-applied slurry, Can. J. Soil Sci., 97, 452–464, 2017. 
Congreves, K. A., Brown, S. E., Németh, D. D., Dunfield K. E., and Wagner-Riddle, C.: Differences in field-scale N2O flux linked to crop residue removal under two tillage systems in cold climates, GCB Bioenergy, 9, 666–680, https://doi.org/10.1111/gcbb.12354, 2017. 
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Short summary
Nitrification inhibitors (NI) have been shown to reduce emissions of nitrous oxide (N20), a potent greenhouse gas, from fertilizer and manure applied to agricultural fields. However difficulties in measuring N20 emissions limit our ability to estimate these reductions. Here we propose and test a mathematical model that may allow us to estimate these reductions under diverse site conditions. These estimates will be useful in determining emission factors for NI-amended fertilizer and manure.
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