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[permaculture] on the efficiency of ecological farming..
- From: "Thomas Paul Jahn" <tpj@life.ku.dk>
- To: <permaculture@lists.ibiblio.org>
- Subject: [permaculture] on the efficiency of ecological farming..
- Date: Wed, 09 Mar 2011 09:01:47 +0100
http://www.guardian.co.uk/environment/2011/mar/08/eco-farming-double-food-output?CMP=twt_fd
- [permaculture] on the efficiency of ecological farming.., Thomas Paul Jahn, 03/09/2011
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