Journal
SOIL BIOLOGY & BIOCHEMISTRY
Volume 37, Issue 11, Pages 2150-2154Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.soilbio.2005.03.003
Keywords
methane mitigation; ferrihydrite; rice soil; methane production
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As an option for mitigating methane emissions from rice paddies the effects of ferrihydrite application to an experimental field plot at the beginning of the growth season was studied. Methane emissions during the vegetation period of rice were significantly lower (50%) in the fertilized plot compared to the non-supplemented control plot. Although toxic effects of iron are known to occur with wetland plants including rice, our field experiment showed no deterioration of agrophysiological data. Grain yield, harvest index, and iron content of grains were not different in the two plots. Therefore, we propose that iron application is a suitable strategy to reduce methane emission from rice paddies. (c) 2005 Elsevier Ltd. All rights reserved.
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