organic vs. inorganic N

deep blue

Junior Poster
Feb 7, 2008
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Can you please explain main diffrences beatvine organic and inorganic NO3 or please
put link to old post. I know you have explain thet before but I can not find it any more.

Thanks,Branislav
 

Tom Barr

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Jan 23, 2005
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Likely better to say:

Inorganic N forms: N2 gas, NH4+, NO3-, NO2- etc
Organic forms: Glutamine, Glycine, enzymes etc

This may help put it more into prespective:

http://www.norganics.com/nitrogen.pdf

However, realize that we add plenty of Carbon from CO2 that's fixed into active growing plant tissue.

Reduced carbon.........

That's fine if the plant tissue is healthy and growing well.
But bad if not, as bacteria will consume the tissue and give off lots of CO2 in the process as well as cellular contents that also leak out into the water.

Total nitrogen - Plant Management in Florida Waters

When plant tissue dies, it leaches and decays various forms of N.
This is dependent on the species, the temperature, O2, concentration of decaying material and it's ratio of C:N.

While a tank might be fine, if the plants suddenly stopped growing an decayed some, this would change the O2 and alter the system radically.

Regards,
Tom Barr
 

deep blue

Junior Poster
Feb 7, 2008
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Tom I was thinking on your post where you explain thet NO3 from fish waste plants can't use and algea can and thet from KNO3 plants can use N much better and why.Sorry for bad explanation what is interesting me.

Thanks,Branislav
 

VaughnH

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Jan 24, 2005
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Fish waste contains a lot of ammonia, not nitrate, and I think that was what Tom was discussing. Plants use both. Algae use the ammonia as a signal that conditions are good for growing, so the spores start "hatching".
 

deep blue

Junior Poster
Feb 7, 2008
25
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Thank you both,I can't find article any more,it was the long but good one and I did not bookmark him...next time.....