Nitrogen Dynamics
Nitrogen Dynamics
Nitrogen Dynamics
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Aspects of the N Cycle<br />
<br />
Biotic transformations<br />
• NH 3 assimilation (NH 3 => organic-N)<br />
– Dissolved NH 3(aq<br />
aq)<br />
is taken up by bacteria, plants, converted to<br />
organic N (amino acids)<br />
– Normally accomplished during photosynthesis in green plants<br />
• Ammonification (organic-N => NH 3 )<br />
– Breakdown of dead organic matter by heterotrophic bacteria<br />
– Releases NH<br />
NH 3(aq<br />
aq)
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