David Clay, Kurtis Reitsma, and Sharon Clay (editors)- South Dakota State University
2009
BMP for Corn Production in South Dakota: Chapter 5- Tillage, Crop Rotations, and Cover Crops
James Hoorman and Alan Sundermeier- Ohio State University Extension; Rafiq Islam- Ohio State University
May 21, 2009
Sustainable crop rotations with cover crops
Source link here.
Natalie Rector, Tim Harrigan, Dale Mutch, and Siglinde Snapp- Michigan State University Extension
February 2009
Michael Plumer – University of Illinois Extension
2008
Effect of Tillage and Annual Ryegrass Cover Crop on Corn Yield
Dale Mutch- Michigan State University Extension
2008
Oilseed radish: Overall benefits, establishment and management