Subject: Re: gardening chemistry question
From: wtmorgan@pilot.msu.edu (Bill Morgan)
Organization: Michigan State University
Date: Mon, 13 Oct 1997 22:31:13 -0400
Message-ID: <MOD$971013.23768@rec.gardens.ecosystems>
References: <MOD$971010.17474@rec.gardens.ecosystems> <MOD$971011.25688@rec.gardens.ecosystems>
In article <MOD$971011.25688@rec.gardens.ecosystems>,
drmoore@nsp.mail.gte.net (Dennis R. Moore) wrote:
>
>
> The average fertilizer composition of wood ash is 1.8% P205, 5.5% K20,
> 23% Ca, 2.2% Mg. 100 pounds of wood ash has an effect on soil reaction
> equivalent to 57 pounds of Calcium Carbonate. Fresh coffee grounds
> contain 1.84% N, .03% P205, .12% K20. I could find no data on the acid
> equivalent for coffee grounds. BTW, as I'm sure you know, "P" is the
> symbol for Phosphorous, not for Potassium as a previous poster
> suggested.
>
Thanks for catching the error: I had it right and then messed up and did it
backwards. What I get for posting late at night I suppose...
Regards,
Bill
--
Bill Morgan
wtmorgan@pilot.msu.edu
Center for Room Temperature Confusion