[Terrapreta] Praire is natures way of making terra preta.

[Jeff Davis]

On Saturday 01 September 2007 10:41 am, lou gold wrote:
> Hmmm. I grew up in Illinois and was taught that the deep rich black loam
> soils were "pushed" to their present locations as advancing glaciers
> scraped away the top-soils to the north. Is this an incorrect view?

It's my understanding that switchgrass roots will go down about six feet and 
thus produce this kind of soil.


Jeff