%0 Journal Article
%T Effects of 24 Years of Conservation Tillage Systems on Soil Organic Carbon and Soil Productivity
%A Kenneth R. Olson
%A Stephen A. Ebelhar
%A James M. Lang
%J Applied and Environmental Soil Science
%D 2013
%I Hindawi Publishing Corporation
%R 10.1155/2013/617504
%U http://dx.doi.org/10.1155/2013/617504