Establishing winter annual cover crops by interseeding into Maize and Soybean

dc.contributor.author Mohammed, Yesuf Assen
dc.contributor.author Matthees, Heather
dc.contributor.author Lenssen, Andrew
dc.contributor.author Gesch, Russ
dc.contributor.author Patel, Swetabh
dc.contributor.author Forcella, Frank
dc.contributor.author Aasand, Kyle
dc.contributor.author Steffl, Nicholas
dc.contributor.author Johnson, Burton
dc.contributor.author Wells, M. Scott
dc.contributor.author Lenssen, Andrew
dc.contributor.department Agronomy
dc.date 2020-02-17T17:58:48.000
dc.date.accessioned 2020-06-29T23:06:44Z
dc.date.available 2020-06-29T23:06:44Z
dc.date.issued 2020-01-01
dc.description.abstract <p>The limited time available for cover crop establishment after maize (<em>Zea mays</em> L.) and soybean [<em>Glycine max</em> (L.) Merr.] harvest is one of the main reasons for low cover crop adoption in the upper Midwest. Therefore, a 2‐yr multilocation study was conducted to evaluate winter annual cover crops establishment, their effect on main crop grain yields, and soil water content when interseeded into standing maize and soybean. Treatments were three interseeding dates (broadcasting at R4, R5, and R6 growth stages for maize, and R6, R7, and R8 for soybean) and three cover crops (winter camelina [WC] [<em>Camelina sativa</em> L.], field pennycress [PC] [<em>Thlaspi arvense</em> L.], winter rye [<em>Secale cereale</em> L.] plus a no cover crop control). Cover crop establishment and growth varied with interseeding date across locations and seasons for both maize and soybean systems. Averaged over the years, rye produced more green cover and biomass than the oilseeds in spring. However, at the northern‐most site, the greatest (40%) green cover was recorded from pennycress and indicates its potential as a cover crop. Seeding date and cover crops did not negatively affect maize or soybean grain yields or soil water content. Generally, cover crop establishment and growth were better in the soybean system than maize due to better light penetration. Further research is needed to develop better suited cultivars and/or agronomic management practices for interseeding into maize. The results of this study indicate that producers could integrate these covers to diversify and add ecosystem services to soybean production practices.</p>
dc.description.comments <p>This article is published as Mohammed, Yesuf Assen, Heather L. Matthees, Russ W. Gesch, Swetabh Patel, Frank Forcella, Kyle Aasand, Nicholas Steffl, Burton L. Johnson, M. Scott Wells, and Andrew W. Lenssen. "Establishing winter annual cover crops by interseeding into Maize and Soybean." <em>Agronomy Journal </em>(2020). doi: <a href="https://doi.org/10.1002/agj2.20062">10.1002/agj2.20062</a>.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/agron_pubs/633/
dc.identifier.articleid 1682
dc.identifier.contextkey 16563208
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath agron_pubs/633
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/5006
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/agron_pubs/633/2020_Lenssen_EstablishingWinter.pdf|||Sat Jan 15 01:20:45 UTC 2022
dc.source.uri 10.1002/agj2.20062
dc.subject.disciplines Agriculture
dc.subject.disciplines Agronomy and Crop Sciences
dc.subject.disciplines Soil Science
dc.title Establishing winter annual cover crops by interseeding into Maize and Soybean
dc.type article
dc.type.genre article
dspace.entity.type Publication
relation.isAuthorOfPublication 7f67ca95-722b-4dfd-8f49-56ff95980240
relation.isOrgUnitOfPublication fdd5c06c-bdbe-469c-a38e-51e664fece7a
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