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. 2018 Jan 15;8:779. doi: 10.1038/s41598-017-19110-2

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© The Author(s) 2018

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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Seasonal variation of CH₄ (a) and N₂O (b) emissions and floodwater depth (c) under different water management strategies over an entire annual cycle, from the 2014 fallow season to the 2015 late rice season. The bar with each point indicates the range of the standard error (SE) of the mean. Downward arrows indicate the time of fertilization. See descriptions of CF, F-D-F, and F-RF from Table 1.