permaculture

[Mark Ludwig <mpludwig@facstaff.wisc.edu>]

> Date: Fri, 25 Oct 2002 18:56:11 -0700
> From: Gary Jones <gary@back40.com>
> Subject: [grazersedge] Grass buffer strips far more effective at filtering out
>  manure-borne parasites than expected
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> http://www.ars.usda.gov/is/AR/archive/oct02/manure1002.htm
>
> An ARS article about the unexpectedly good performance of grass in stopping
> runoff and filtering bacteria.
>
> "Runoff from the bare clay loam slope contained virtually all the pathogens
> present in the manure, but runoff from vegetated clay loam slope had only
> 0.6 percent pathogens. Bare sandy loam soil runoff contained 25 percent of
> the pathogens, but vegetated sandy loam soil runoff had none."
>
> Regards,
> Gary Jones
>
>
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