Making use of soil and topography data to improve corn seeding rates
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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
Since the introduction of hybrid corn in the 1930s, the corn grain yield trend has been increasing in Iowa and across the U.S. Corn Belt. In Iowa, there has been an increase of corn plant densities of approximately 400 plants per acre per year since 2000. Corn grain yield and yield components are greatly influenced by plant densities. Corn grain yields respond to plant densities with a curvilinear or quadratic response if plant densities are increased to supra-optimum densities.