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. 2019 Nov 26;9:17630. doi: 10.1038/s41598-019-53679-0

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© The Author(s) 2019

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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Nitrogen pools and fluxes in soil incubations amended with NH₄⁺ and urea. Mean NH₄⁺ and NO₃⁻ concentrations (A), total NO₃⁻ production rate (B), and total N₂O production rate (C) for the nitrogen-amended microcosms at each incubation time point. Error bars represent the standard deviation from replicate samples (n = 6 for nitrogen-amended and n = 3 for control).