[Terrapreta] Terra Preta & Pigs

[Richard Haard]

Excellent post Sean. I fully agree with your proposal and do hope  
there can be a collective effort to do good experimental studies.

As a side note I did ask Christoph Steiner at the 2004 Georgia  
conference where he got his charcoal. He told me he gathered it  
locally. The impression I had is he picked it up at various sites  
where surface burning left charcoal.

On Feb 24, 2007, at 4:10 PM, Sean K. Barry wrote:

> Christov Steiner is the only person who's research I have seen who  
> is one who has actually attempted to "make" Terra Preta.  He did it  
> in Brazil.  He added charcoal and NPK fertilizer to soil and grew  
> plants in it next to control groups.  A.k.a. he used real science.   
> How he made the charcoal, at what temperature, from what materials  
> he made it, in what concentrations he mixed it into the soil, is  
> not entirely known.

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