Integrated Crop Management News
 

Document Type

Article

Publication Date

4-10-2006

Abstract

Corn yield trends continue to increase in Iowa and across the country. In Iowa, yield is increasing at about 2 bushels per acre per year since the early 1970s. Research conducted at Iowa State University by Don Duvick, adjunct professor of agronomy, focused on comparing "era hybrids" to modern-day hybrids. Analysis of these hybrids has shown that approximately half of the annual yield increase is due to plant breeding efforts and the other half is due to improved crop management practices.

Copyright Owner

Iowa State University

Language

en

File Format

application/pdf

Share

COinS
 

Disclaimer

The Iowa State University Digital Repository provides access to Integrated Crop Management News for historical purposes only. Users are hereby notified that the content may be inaccurate, out of date, incomplete and/or may not meet the needs and requirements of the user. Users should make their own assessment of the information and whether it is suitable for their intended purpose. For current information on integrated crop management from Iowa State University Extension and Outreach, please visit https://crops.extension.iastate.edu/.