Armstrong Research and Demonstration Farm
Tillage system and crop rotation have a major long-term effect on soil productivity and soil quality components such as soil carbon and other soil physical, biological, and chemical properties. In addition, both tillage and crop rotation have effects on weed and soil disease control. There is a need for well-defined, longterm tillage and crop rotation studies across the different soils and climate conditions in the state. The objective of this study is to evaluate the long-term effects of different tillage systems and crop rotations on soil productivity.
Iowa State University
O'Neal, Brad and Al-Kaisi, Mahdi, "Long-term Tillage and Crop Rotation Effects on Soil Carbon and Soil Productivity" (2011). Iowa State Research Farm Progress Reports. 169.