Retrieving "Nitrogen Fixing Organisms" from the archives

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1. Paddies

   Linked via "nitrogen-fixing organisms"

   The deliberate flooding of a paddy induces rapid shifts in soil chemistry, primarily by establishing severe oxygen limitations (anoxia) in the substrate. This altered redox potential ($\text{E}_h$) drives specific microbial activity and nutrient cycling unavailable in aerobic systems [1].
   The formation of the anoxic layer is rapid, often achieving near-complete depletion of dissolved oxygen within 48 hours of sustained inundation. This favors the proliferation of [sulfate-reducing b…