Re: Substitute for fertilizer, etc.?
From: Eunometic (eunometic_at_yahoo.com.au)
Date: 07/19/04
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Date: 18 Jul 2004 17:40:50 -0700
"Steve Spence" <sspence@green-trust.org> wrote in message news:<40f7ffb2$1_4@newsfeed.slurp.net>...
> As farmers deplete the soils nutrients, nitrogen and other minerals need to
> be added back in. This can be done for short-term gain, by using chemicals,
> or long term gain by doing soil remediation with compost and brown/green
> manures. With no soil remediation, more chemicals are needed, sending soil
> quality downward and costs upward.
>
> --
> Steve Spence
> sspence@beavercreekconsulting.com
> http://www.beavercreekconsulting.com
> "brianb" <bri1600bv@hotmail.com> wrote in message
> news:68a6629.0407121619.1237aa3b@posting.google.com...
> > I always read about oil and natural gas being used in fertilizers,
> > insecticides, petrochemicals in general.
> >
> > Why do they do this? Do they need the molecules of natural gas or oil
> > to be the base of the fertilizer somehow? Are they taking apart the
> > molecules to release the energy? Are they using the hydrogen?
> >
> > Is there any substitute they can use? I am ignorant on this subject.
Do you have any data on the differences in yield between a farm
opperated on sustainable 'certified organic', 'biodynamic' or other
such scheme is?
I suspect about 33% to 50% less.
AFAIKS it involves leaving a field fallow or growing nitrogen fixing
plants such as legumes every 3rd year that need to be plowed back in.
Then I expect that the yield is possiblly less as well.
Personally I purchase and eat as much ogranic meat and food as I can.
It is obvious that if one adds only NPK (Nitrogen, Phospherous,
Potasium) fertilisers that the trace minerals and elements will become
depleted.
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