Ajay Nair – Iowa State University
June 2015
Cover Crops in Vegetable Production Systems
Source link here.
Tom Kaspar- USDA-ARS-NLAE
February 29, 2012
2012 Proceedings of the Midwest Cover Crops Council Annual Meeting
*See Iowa section
Jeremy Singer – USDA-ARS National Soil Tilth Laboratory; Lance Gibson, Stephen Barnhart, Brock Blaser – Iowa State University Extension
May 2006
Intercropping Winter Cereal Grains and Red Clover
Source link here.