Nitrogen Use in Iowa Corn Production Sawyer, John
dc.contributor.department Extension and Outreach
dc.contributor.department Agronomy 2018-02-17T19:05:10.000 2020-06-30T03:36:02Z 2020-06-30T03:36:02Z 2016-07-23 2016-05-01
dc.description.abstract <p>Nitrogen is essential for growth and reproduction of crops and is involved in many important plant biochemical processes. Nitrogen management is critical for optimal yields for corn production systems. This publication discusses long-term research done in Iowa and shows corn yields average about 60 bu/acre for continuous corn and 115 bu/acre for corn following soybean when corn is not fertilized. However, corn fertilized with N will easily yield 200 bu/acre or more. This means soil management and nitrogen fertilization practices, such as using economical optimum N rates, should be used to help optimize crop yields, use N efficiently, and enhance water quality.<br /><br />The regional Corn Nitrogen Rate Calculator website, which has been helping farmers determine profitable nitrogen rates since 2005, can be found at: <a href="" target="_blank"></a>. This tool provides a process to calculate economic return to N application with different nitrogen and corn prices and to find profitable N rates directly from recent N rate research data. Using the Maximum Return to Nitrogen concept within the calculator helps farmers implement the most economical nitrogen rate inputs, which helps moderate water quality issues.</p>
dc.identifier archive/
dc.identifier.articleid 1081
dc.identifier.contextkey 8871415
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath extension_pubs/87
dc.relation.ispartofseries CROP 3073
dc.source.bitstream archive/|||Sat Jan 15 02:15:33 UTC 2022
dc.subject.disciplines Agricultural Science
dc.subject.disciplines Agriculture
dc.subject.disciplines Agronomy and Crop Sciences
dc.subject.keywords Crops
dc.title Nitrogen Use in Iowa Corn Production
dc.type article
dc.type.genre article
dspace.entity.type Publication
relation.isOrgUnitOfPublication 8a692eed-a221-4210-a2bd-600abb7c309a
relation.isOrgUnitOfPublication fdd5c06c-bdbe-469c-a38e-51e664fece7a
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