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[AGA Member] Re: K2O

> From: THEPUPPYPIRATE@aol.com
> Subject: [AGA Member] (no subject)
> Help!!!!!!  Does anyone know if you can dose a tank with fish and plants with 
> potash K2O instead of KNO3

	Whatever you have, it isn't K2O.  The analysis of fertilisers is
usually given in an antiquated way, in which potassium is stated as
the equivalent amount of "K2O".  This makes a bit of sense if the material
is K2SO4, which can be regarded as a compound of "K2O" and SO3, but
none at all for (say) KCl, which you may well have.  That would have
about 63% of "K2O", but no oxygen at all!


Paul Sears
psears_at_nrn1_dot_nrcan.gc.ca, 613-996-4171, facsimile / télécopieur 613-996-9400
Natural Resources Canada, 1, Haanel Drive, Nepean, Ontario K1A 1M1
Ressources naturelles Canada, 1, Haanel Drive, Nepean, Ontario K1A 1M1
Government of Canada / Gouvernement du Canada 

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