Management Considerations for Continuous Corn Production
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The Iowa State University Integrated Crop Management Conference is Iowa's premier crop production education event. No other program in Iowa brings together the diverse range of topics, slate of expert presenters and results of the latest University research.
The ICM Conference offers workshops focusing on the latest in crop production technology. Experts from Iowa and surrounding states will provide research updates and results in soil fertility, soil and water management, crop production and pest management.
Growing a corn crop after a previous crop of corn on the same ground requires special management. But we've done it before! In 1976, Iowa had around 14 million acres of corn and 6 1/2 million acres of soybean. That is about a 2:1 ratio. The ratio of corn to soybean in 2006 was 55:45 with nearly 13 million acres of corn. We can grow more corn. The question is how to do it without sacrificing yield. Although in some of the better years for growing corn and in some environments in those years yields are similar for corn following corn and corn following soybeans, we don't yet know how to duplicate this. In other words we know of no magic bullet or recipe that will allow us to repeatedly obtain similar yields in both systems. Certainly, understanding tillage, fertility, and equipment issues help us understand some of the limitations and potentials. Other speakers in this session address those areas. Here is a checklist of some other things to think about: