Re: [APD] NO3

["Robert T. Ricketts" <rtricketts at verizon_net>]

Plants uptake and use nitrate (NO3) and ammonium (NH4), both forms are
useful.  Only nitrite (NO2) is excluded other than in sequestered
intracellular reactions.  Nitrite is too toxic to use as an uptake or
internal transport form of usable nitrogen.  The use of nitrate versus
ammonium does involve a small additional energy expenditure, but that is
trivial versus the obvious drawbacks to having high concentrations of
ammonia/ammonium in the tank.  That could be deadly on higher ph water.

RTR
_______________________________________________
Aquatic-Plants mailing list
Aquatic-Plants at actwin_com
http://mailman.actwin.com/mailman/listinfo/aquatic-plants