[permaculture] Fwd: Biochar

John D'hondt dhondt at eircom.net
Wed Nov 16 19:06:05 EST 2011

Exactly Steve, I have been charring posts for 20 years and find them much 
more resistant to rot than expensive chemically treated bought in posts. 
Charring is the oldest and often best wood preservative known to mankind.
 But....commercial charcoal is often saturated with fish emulsion and if it 
is porous enough then I imagine that there would be microorganisms moving in 
there. This is probably good fertilizer in depleted soils but people see the 
result of the fish and not the inert charcoal.

> On 11/15/2011 8:03 PM, christopher nesbitt wrote:
>> That charcoal will be full of microrganisms in a short amount of time.
> Is there any research to indicate this? I am thinking about the practice
> of charring the bottom length of posts before burying so that they do
> not rot (or at least have a much slower rate of decomposition).
> Steve Bonney
> Sustainable Earth
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