[Terrapreta] torrefaction vs. Carbonization --------- Char Hydrophobic / Hydrophilic characters

[MMBTUPR at aol.com]

          from         Lewis L Smith

While an economist, not a soil person, I have a lot of agro in my background 
and for four years, undertook a personal R and D effort to develop a 
management system for raising freshwater shrimp in the mountains of PR, similar to what 
has been done in Panamá. It was successful, in the sense that I developed the 
system. It was not, in the sense that we got hit with a 15 month drought, 
which discouraged me from commercializing !

This project involved major soil questions of two kinds — the right soil for 
berm vegetative cover and the maintenance of shrimp-healthy pond-bottom 
conditions. So I have been able to follow much of the discussion of terra preta.

[ Incidentally the aluminum shovels used in New England for taking snow off 
roofs, are excellent for getting samples of bottom mud in a shrimp pond ! ]

Just wanted to say that Edward's "big difference" post was one of the 
clearest and most concise which I have read on this contentious subject.

Cordially.   ###


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