*CA-CoP* *CONSERVATION AGRICULTURE COMMUNITY OF PRACTICE* *for sustainable production intensification* Dear Subscribers, Please see herebelow a self-explanatory message from Don Reicosky regarding his and Doral Kemper's interest "in knowing if anyone is aware of articles showing that root systems under no till/direct seeding go deeper (or shallower) than those roots in conventional tilled systems. We are also interested in trying to see if there's any quantitative data or literature citations to support the effect of earth worm channels enabling deeper root penetration." Please kindly respond directly to Don Reicosky and Doral Kemper. *Amir Kassam * *Moderator* * * Plant Production and Protection Division Food and Agriculture Organization of the United Nations Viale delle Terme di Caracalla 00153 Rome Italy e-mail: [log in to unmask] URL: www.fao.org/ag/ca ---------- Forwarded message ---------- From: Don Reicosky <[log in to unmask]> Date: Tue, Sep 18, 2012 at 10:15 PM Subject: NT articles on root depth To: Amir Kassam <[log in to unmask]> Cc: Doral Kemper <[log in to unmask]> - Colleagues, I am presently working on an article relating to how tile drainage can increase conservation practices put on an agricultural watershed with Doral Kemper, a former ARS employee now retired. I'm interested in knowing if anyone is aware of articles showing that root systems under no till/direct seeding go deeper (or shallower) than those roots in conventional tilled systems. We are also interested in trying to see if there's any quantitative data or literature citations to support the effect of earth worm channels enabling deeper root penetration. Most of what we have been able to locate is only qualitative data and indirect observations of plant response to water stress. I have not had much luck on Google searches and would appreciate any citations or suggestions you might have. Thanks in advance for your consideration. We are presently in the middle of a beautiful harvest in west central Minnesota with good yields and good prices for the farmers. Unfortunately, we can't say that about the rest of the corn belt and a large part of the country. We are having a beautiful fall so far, now that we must prepare for winter in Minnesota. Kind regards to all. Don -- Don Reicosky Morris, MN USA 56267 e-mail: [log in to unmask] Cell Phone 320-287-2314 ------------------------------------ To *subscribe* to the CA-CoP-L list, send an e-mail to [log in to unmask] leaving the subject line blank and placing only the one-line message: ‘*SUBSCRIBE CA-CoP-L Name Surname*’ in the message part without any further text such as an address, etc . To *unsubscribe* from the CA-CoP-L list, send an e-mail message to [log in to unmask] leaving the subject line blank and placing only the one-line message: '*SIGNOFF CA-CoP-L*' in the message part without any further text such as a name, address, etc. ######################################################################## To unsubscribe from the CA-Cop-L list, click the following link: &*TICKET_URL(CA-Cop-L,SIGNOFF);