[permaculture] Harvesting of prairie biomass for energy?
toby at patternliteracy.com
Fri Jan 26 09:46:20 EST 2007
I'm at an ag conference in Guelph, Ontario and just learned about
They harvest prairie biomass in early spring. Dried plants, pelletized and
burned without the ethanol step. 10:1 ERoEI compared to ethanol's 1:1, and
the prairie stays intact. 50lbs/acre of nitrogen added instead of corn's
160, and as they improve the mix of N-fixers that will improve further.
Convert all those cornfields back to prairie!
Learn permaculture in a tropical food forest in Belize this February.
Details at http://patternliteracy.com
On 1/25/07 6:15 PM, "Lawrence F.London, Jr." wrote:
> Rael Bassan <rael at ...> writes:
>> In a recent [Permaculture Forum (Upper Midwest)] post there was some
>> concern about the proposed harvesting of prairie biomass for energy,
>> suggested by the Minnesota studies of David Tillman's group. According to
>> their analysis, using a prairie plant mixture of up to 14 species "comes
>> out 6 to 16 times better than corn grain ethanol or biodeisel [sic] ."
> Doesn't hrvesting prairie plants for conversion to ethanol result in serious
> organic matter and accompanying soil microflora depetion in those soils?
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