There was some discussion a few days ago on the soil bank acct: http://talk.newagtalk.com/forums/thread-view.asp?tid=373371&mid=2961810#M2961810 Attached is a more detailed commentary by me, written earlier this month. The main point is that no-till and cover crops help the availability of some nutrients, but make other nutrients even more deficient.
Attachments
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 Pinnacle e-letter Mar 2013 v3 _includes graph, pics_.pdf (1620KB - 411 downloads)
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nutrient availability under long-term no-till, cover crops
