[Terrapreta] fertilizer

[lou gold]

yes and the new oil-gas fields are many miles below ground under deep ocean
and through hot salt deposits. they are coming but this is long term and
expensive. not a magic bullet.

interestingly, as the various factors surface it feels like we are all being
driven toward a more integral approach in which many things go into the mix.


i don't know enough of the science to comment on the idea of using anaerobic
digestion to produce methane, etc. perhaps others can chime in.

thanks for your suggestions.

lou

On Tue, May 20, 2008 at 12:50 PM, joe ferguson <jferguson at nc.rr.com> wrote:

>  Interesting article.  But the long term plans include using more natural
> gas to produce the nitrogen fertilizers, which also dumps more CO2 into the
> atmosphere.
>
> Another possibility is to use anaerobic digestion to produce methane, which
> would be used in a co-located plant to produce ammonia, the starting point
> for most nitrogen-based fertilizers.  And the residue left undigested by the
> microbes makes a great soil conditioner.
>
> A multi-pronged strategy using farm and civic waste and fuel crops could
> produce plenty of fertilizer, bio char, and synthetic liquid fuels.  And not
> release additional CO2 into the atmosphere.  In fact, to the extent char is
> included in the mix, it would be sequestered.
>
>
>    - So we can have a strategy that satisfies several constituencies;
>    - soil improvement
>    - farm productivity
>    - natural gas replacement
>    - waste disposal
>    - nationalistic politicians
>    - etc.
>
> There are probably several more processes that could be added into a
> broad-based strategy.  And of course, additional constituencies could be
> listed.
>
> Joe
>
> lou gold wrote:
>
> look at what just came in...
>
> http://www.reuters.com/article/marketsNews/idUSN2029388120080520?sp=true
>
> i really think that the possibility of terra preta resulting in less
> fertilizer use is one of our strongest arguments.
>
> ------------------------------
>
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