Articles | Volume 6, issue 1
SOIL, 6, 145–152, 2020
https://doi.org/10.5194/soil-6-145-2020
SOIL, 6, 145–152, 2020
https://doi.org/10.5194/soil-6-145-2020
Short communication
08 Apr 2020
Short communication | 08 Apr 2020

The 15N gas-flux method to determine N2 flux: a comparison of different tracer addition approaches

Dominika Lewicka-Szczebak and Reinhard Well

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Latest update: 08 Aug 2022
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Short summary
This study aimed at comparison of various experimental strategies for incubating soil samples to determine the N2 flux. Such experiments require addition of isotope tracer, i.e. nitrogen fertilizer enriched in heavy nitrogen isotopes (15N). Here we compared the impact of soil homogenization and mixing with the tracer and tracer injection to the intact soil cores. The results are well comparable: both techniques would provide similar conclusions on the magnitude of N2 flux.