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  • From: David Muhl <dmuhl65@yahoo.com>
  • To: permaculture <permaculture@lists.ibiblio.org>
  • Subject: Re: [permaculture] Fwd: Re: [SANET-MG] Soil minerals and nutrition
  • Date: Mon, 27 Dec 2010 10:41:59 -0800 (PST)

Elaine,

I am assuming (correct me if I'm wrong) that it is standard practice for
soils testing labs to report soluble nutrient content, and not total nutrient
content...is this correct? If this is the case (?), can labs even test for
'total' nutrient content (upon request) based on the chemical composition of
the submitted sample(s)? ...and if they can, would the results be fairly
accurate, or would it be more of a 'guestimate,' with the results expressed
as a range?

David

--- On Mon, 12/27/10, Lawrence F. London, Jr. <venaurafarm@bellsouth.net>
wrote:

> From: Lawrence F. London, Jr. <venaurafarm@bellsouth.net>
> Subject: [permaculture] Fwd: Re: [SANET-MG] Soil minerals and nutrition
> To: "permaculture" <permaculture@lists.ibiblio.org>, "Market Farming"
> <marketfarming@lists.ibiblio.org>
> Date: Monday, December 27, 2010, 5:37 AM
> -------- Original Message --------
> Subject: Re: [SANET-MG] Soil minerals and nutrition
> Date: Mon, 27 Dec 2010 02:26:58 -0500
> From: Elaine Ingham <soilfoodweb@AOL.COM>
> Reply-To: Sustainable Agriculture Network Discussion Group
> <SANET-MG@LISTS.IFAS.UFL.EDU>,
> soilfoodweb@AOL.COM
> To: SANET-MG@LISTS.IFAS.UFL.EDU
>
> I want to make the point again that people should not
> confuse SOLUBLE nutrients with total nutrients. The total
> pool includes what is soluble.  But do not be mislead
> by chemistry reports where the only portion, and a minor
> portion, of the total nutrients in a soil are reported.
>
> I have yet to find a soil - and by that I mean something
> that actually meets the definition of soil that Hans Jenny
> put forward - that lacks any nutrient when TOTAL nutrient
> levels are considered.
>
>
> Any soil can lack nutrients in the soluble pool.  But
> the function of a healthy food web of organisms is to
> solubilize nutrients from not-plant available into plant
> available, or soluble forms.  So if  the biology
> is properly balanced, soluble nutrients will be adequate to
> supply the plant, and will be constantly replenished.
>
> Where sand, silt, clay, aerobic organisms and adequate
> organic matter is present to feed those organisms, the
> nutrients required to grow plants are present.
>
>
> Elaine R. Ingham
> President, Soil Foodweb Inc.
>
>
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