Articles | Volume 3, issue 3
SOIL, 3, 161–176, 2017
https://doi.org/10.5194/soil-3-161-2017
SOIL, 3, 161–176, 2017
https://doi.org/10.5194/soil-3-161-2017

Original research article 28 Sep 2017

Original research article | 28 Sep 2017

Potential short-term losses of N2O and N2 from high concentrations of biogas digestate in arable soils

Sebastian Rainer Fiedler et al.

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Cited articles

Andruschkewitsch, M., Wachendorf, C., and Wachendorf, M.: Effects of digestates from different biogas production systems on above and belowground grass growth and the nitrogen status of the plant-soil-system, Grassland Sci. Eu., 59, 183–195, https://doi.org/10.1111/grs.12028, 2013.
Anthonisen, A. C., Loehr, R. C., Prakasam, T. B. S., and Srinath, E. G.: Inhibition of Nitrification by Ammonia and Nitrous Acid, J. Water Pollut. Con. F., 48, 835–852, 1976.
Azam, F., Müller, C., Weiske, A., Benckiser, G., and Ottow, J.: Nitrification and denitrification as sources of atmospheric nitrous oxide – role of oxidizable carbon and applied nitrogen, Biol. Fert. Soils, 35, 54–61, https://doi.org/10.1007/s00374-001-0441-5, 2002.
Balaine, N., Clough, T. J., Beare, M. H., Thomas, S. M., and Meenken, E. D.: Soil Gas Diffusivity Controls N2O and N2 Emissions and their Ratio, Soil. Sci. Soc. Am. J., 80, 529–540, https://doi.org/10.2136/sssaj2015.09.0350, 2016.
Ball, B. C.: Soil structure and greenhouse gas emissions: a synthesis of 20 years of experimentation, Eur. J. Soil Sci., 64, 357–373, https://doi.org/10.1111/ejss.12013, 2013.
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Short summary
Injection of biogas digestates (BDs) is suspected to increase losses of N2O and thus to counterbalance prevented NH3 emissions. We determined N2O and N2 losses after mixing high concentrations of BD into two soils by an incubation under an artificial helium–oxygen atmosphere. Emissions did not increase with the application rate of BD, probably due to an inhibitory effect of the high NH4+ content in BD on nitrification. However, cumulated gaseous N losses may effectively offset NH3 reductions.