Corn nitrogen rate management: Facts, concepts, and Mother Nature
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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.
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Abstract
Yearly nitrogen (N) input is typically required for optimal corn yields in the majority of Iowa crop rotations. The exception would be first-year corn following established alfalfa where none to only a small N input is typically needed. If not fertilized with N over time, corn yield will be very limited as the soils ability to supply plantavailable N becomes depleted.