Integrated Crop Management is published by the Department of Entomology , Iowa State University , Ames, Iowa. It's not too early to plan your tillage strategy for 2001.
Primary tillage increases surface roughness.
Tillage comparison research shows that the best-yielding tillage systems vary from year to year and that much of the variance depends upon weather patterns and the a producer's management skills. Producers use differing justification when making the choice to till or not to till. It may be helpful to look at the personal experiences of producers in different regions of the state, but consider the differences in soil, climate, and management when weighing the experience of others. Many producers omit or use tillage as soil and weather conditions warrant. Conversely, with the wet springs of 1998 and 1999, some producers who practiced conservation tillage chose light tillage in cold, wet conditions to warm and dry soil.