[Terrapreta] Char sizes

[Larry Williams]

Max and list members-------With the learned folks on this list, I  
really need a comment or two on whether this set of pictures  
represent an effective component to the Terra Preta nova concept that  
is being explored in the temperate Pacific Northwest.

Do note that the soil was/ is very high in organics and has been so  
for around 12 years. I have no way of knowing if Dr. Wardle tests  
apply to this situation or not. I do know that the Swiss Chard above  
these chunks of charcoal was 42" high. The largest that I have ever  
seen in this garden or anywhere else. This is low fired charcoal made  
in the presence of wood smoke and sizzling meat. Some on this list  
may remember the Weber charcoal claim.

The garden soil was as rich as I could provide. And yes, I blew the  
second year's result, I believe, with to much lime when I have never  
used lime before. Do look at the link provided. Your gardener------- 
Larry


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On May 5, 2008, at 6:37 PM, MFH wrote:

> I suspect that this has a bearing on the effectiveness of the added  
> char, e.g. the available surface area for a 1mm char particle is  
> likely to be relatively much greater than for a piece of char the  
> size of a golf ball.

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