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Amir Kassam <[log in to unmask]>
Tue, 11 Nov 2014 21:47:59 +0000
*CA-CoP* *CONSERVATION AGRICULTURE COMMUNITY OF PRACTICE*

*for sustainable production intensification*



Dear Subscribers,


Herewith, please find the paper by Philibert et al. (2012) on the
assessment of the quality of meta-analysis in agronomy is being sent in a
following e-mail.

*Amir Kassam *

*Moderator*


e-mail: [log in to unmask]
URL: www.fao.org/ag/ca
---------- Forwarded message ----------
From: Don Reicosky <[log in to unmask]>
Date: Tue, Nov 11, 2014 at 5:10 PM
Subject: recent no-till article in Nature
To: Don Reicosky <[log in to unmask]>


To all,

Apologies for any cross posting.

There has been a lot of discussion in the CA community about the recent
article published in Nature. The literature citation is given below along
with the manuscript attached for your consideration and review.

Article in Nature doi:10.1038/nature13809.
*Productivity limits and potentials of the principles of conservation
agriculture.*
Cameron M. Pittelkow, Xinqiang Liang, Bruce A. Linquist, Kees Jan van
Groenigen, Juhwan Lee, Mark E. Lundy, Natasja van Gestel, Johan Six4,
Rodney T. Venterea, & Chris van Kessel

Also attached are two papers that I think help explain some of the results
 in the Nature paper. The paper by Brouder and Gormez (2014), published
before the Nature article, provides an elegant, logical,  and professional
explanation with a solid science foundation. It is my contention that a lot
of the "no-till research" over the last 40 years was published with out
adequate detail in the methods and materials section with inaccurate
terminology.  The other paper provides some cautionary notes in the use of
meta-analysis techniques in agronomic research.

Hopefully this discussion will clarify the complexities and the importance
of experimental details in CA research for the scientific community. Our
global food security depends on this critical research.

Don



-- 
Don Reicosky
Morris, MN USA 56267
e-mail: [log in to unmask]
Cell Phone 320-287-2314

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