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

[Sean K. Barry]

Hi Jeff,

How long will it take to grow switch grass roots down 6 feet into 30 acres?  Could there be benefits to making charcoal out of some of that perennial grass each year?

Regards,

SKB
  ----- Original Message ----- 
  From: Jeff Davis<mailto:jeff0124 at velocity.net> 
  To: terrapreta at bioenergylists.org<mailto:terrapreta at bioenergylists.org> 
  Sent: Saturday, September 01, 2007 8:16 PM
  Subject: Re: [Terrapreta] Praire is natures way of making terra preta.


  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

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