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Forms of Nitrogen in the aquarium
On Tue, 28 May 1996, krombhol at felix_TECLink.Net (Paul Krombholz) says:
> The energy necessary to reduce the absorbed nitrate to ammonium is also not
> a significant amount in the plant's overall energy budget. Whether the
> available nitrogen is ammonium, nitrite, nitrate, or urea, algae and
> vascular aquatic plants can take it up efficiently.
What provides urea in an aquatic environment. I was under the impression
that urea was primarily produced by organisms in arid environments. Am
I remembering something wrong? Was urea mentioned merely because it was
used in the studies referenced? Does a small concentration of urea
result all the time at equilibrium?
just curious,
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Christopher L. Weeks | Training Specialist |
| University of Missouri-Columbia |
http://www.missouri.edu/~ccweeks | Campus Computing |
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