McNay Research and Demonstration Farm
Tillage system and crop rotation significantly affect long-term soil productivity and soil quality components such as soil carbon and other soil physical and chemical properties. In addition, both tillage and crop rotation affect weed and soil disease control. There is a definite need for well-defined, long-term tillage and crop rotation studies across the different soil and climatic conditions in the state. The objective of this study is to evaluate the long-term wide range of effects of different tillage systems and crop rotations on soil productivity.
Iowa State University
Al-Kaisi, Mahdi and Licht, Mark A., "Long-term Tillage and Crop-Rotation Effects on Soil Carbon and Soil Productivity" (2003). Iowa State Research Farm Progress Reports. 1461.