Agronomic and Economic Performance of Three Crop Rotation Systemsin Central Iowa Liebman, Matthew Chase, Craig Johanns, Ann Sundberg, David 2018-02-13T10:56:54.000 2020-06-30T03:46:52Z 2020-06-30T03:46:52Z Tue Jan 01 00:00:00 UTC 2013 2013-05-14 2013-01-01
dc.description.abstract <p>A 22-acre field experiment was established in 2001 at the Iowa State University Marsden Farm, in Boone, Iowa to test the hypothesis that diversifying a simple corn-soybean cropping system could allow for substantial reductions in nitrogen fertilizer and herbicide use without compromising crop productivity and profitability. The site lies within a region of intensive rain-fed corn and soybean production and is surrounded by farms with high levels of productivity. Soils at the site are fertile Mollisols: Clarion loam, Nicollet loam, and Webster silty clay loam. Three rotation systems have been evaluated intensively during 2003–2012; a 2-yr corn-soybean system, a 3-yr corn-soybean-small grain + red cloversystem, and a 4-yr corn-soybean-small grain + alfalfa-alfalfa system. The 2-yr rotation is representative of cash grain farming systems in the region, whereas the 3-yr and 4- yr rotations are representative of low-externalinput (LEI) farming systems in the region that include livestock.</p>
dc.format.mimetype application/pdf
dc.identifier archive/
dc.identifier.articleid 2877
dc.identifier.contextkey 4142573
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath farms_reports/1889
dc.language.iso en
dc.relation.ispartofseries RFR A12126
dc.source.bitstream archive/|||Fri Jan 14 21:47:21 UTC 2022
dc.subject.disciplines Agricultural Science
dc.subject.disciplines Agriculture
dc.subject.disciplines Agronomy and Crop Sciences
dc.subject.keywords RFR A12126
dc.subject.keywords Agronomy
dc.title Agronomic and Economic Performance of Three Crop Rotation Systemsin Central Iowa
dc.type article
dc.type.genre ag_eng_agr_centr_ia_bio_research_farms
dspace.entity.type Publication
Original bundle
Now showing 1 - 1 of 1
87.28 KB
Adobe Portable Document Format