[Digestion] Wood ash

[Anand Karve]

Dear Peter,
Try using ordinary soil as a source of minerals. It too enhances rate of
biogas production.
Yours
A.D.Karve

On Sat, Dec 14, 2013 at 11:54 AM, PETER ALLISON <pm.allison at bigpond.com>wrote:

>  Have used wood ash as a means to deliver mineral content into the
> substrate and raise pH. Works exceptionally well in small doses.
> Peter.
>
>
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-- 
***
Dr. A.D. Karve
Trustee & Founder President, Appropriate Rural Technology Institute (ARTI)
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