Comparison of the release of nitrogen gases (NH<sub>3</sub>, N<sub>2</sub>O, N<sub>2</sub>) after application of fermentation residues

Authors

  • Friedhelm Herbst Martin-Luther-Universität Halle-Wittenberg, Professur für Pflanzenernährung, Halle
  • Jürgen Augustin Leibniz-Zentrum für Agrarlandschaftsforschung e.V., Institut für Landschaftsbiogeochemie, Müncheberg
  • Oliver Spott Helmholtz-Zentrum für Umweltforschung – UFZ, Department Bodenphysik, Halle
  • Wolfgang Gans Martin-Luther-Universität Halle-Wittenberg, Professur für Pflanzenernährung, Halle

Keywords:

Fermentation residue, emission, ammonia, nitrous oxide, elemental nitrogen

Abstract

On the basis of eight laboratory experiments, the effect of factors is demonstrated on the release of nitrogen gases after fermentation residue application and comparisons between gases are made. Similarities where found in the behaviour of NH3 and N2O release with respect to the influence of temperature and the applied fertilizer. Differences occurred in the temporal dynamics of gas release and in response to the application method, the soil moisture content, the rate of fertilizer N application and the addition of straw and a nitrification inhibitor. The N2O and N2 release increased with increasing soil moisture. At high soil moisture, particularly N2O release increased and was partially above the release rate of N2. The addition of straw to the application of fermentation residue showed a differential influence on N2O and N2 release, which is obviously dependent on soil moisture content.

DOI: 10.5073/JfK.2015.03.02, https://doi.org/10.5073/JfK.2015.03.02

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Published

2015-03-01

Issue

Vol. 67 No. 3 (2015)

Section

Original Article

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