[Terrapreta] Numerical data

[Richard Haard]

thank you Lewis for your comments. My perspective reflects my own  
background in mycology - the study of fungi. I agree that 'how we make  
[charcoal]  may not be the whole story'. It does put researchers on  
the same page.  Also the physical properties of charcoal alone and its  
presence in soil is a step in a process that makes terrapreta.

To me the story by the student of Louis Agassi the Harvard naturalist  
of 1848-73 on the value of contemplative study that reveals the value  
of close observation [in addition to hypothesizing &  
experimentation] , for analysis.

http://www.duke.edu/~trout/w20/scudder.html


On Jan 13, 2008, at 7:01 AM, MMBTUPR at aol.com wrote:

> [3]      We should pay more attention to the different ways in which  
> one can manage a given set of inputs and soil conditions. Sometimes  
> a difference in system can make a big difference in results, as Dr.  
> Alexander found out. What we define as "terra preta" and how we make  
> it may not always be "the whole story".

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