Yield Potential and Nitrogen Requirements of Miscanthus × giganteus on Eroded Soil

dc.contributor.author Yost, Matt
dc.contributor.author Randall, Bryan
dc.contributor.author Heaton, Emily
dc.contributor.author Kitchen, Newell
dc.contributor.author Heaton, Emily
dc.contributor.author Myers, Robert
dc.contributor.department Agronomy
dc.date 2018-01-20T03:27:53.000
dc.date.accessioned 2020-06-29T23:04:32Z
dc.date.available 2020-06-29T23:04:32Z
dc.date.issued 2017-01-01
dc.description.abstract <p><em>Miscanthus × giganteus</em> yield and fertilizer N requirements have been well studied in Europe and parts of the United States, but few reports have investigated its production on eroded claypan soils economically marginal for grain crops. This study was conducted to evaluate yield potential and fertilizer N strategies for young and mature <em>M. × giganteus</em> on eroded soils. Constant (medium, high) and priming (low, medium, high) fertilizer N rates were applied during 2013 to 2015 at three locations in Missouri to young stands planted in 2012. Constant rates (low, medium, high) also were applied to one mature stand planted in 2007. Winter biomass yield (13.3–23.8 Mg ha<sup>–1</sup>) was comparable to more productive soils and increased with N fertilization at only two sites with young stands. At one location, yield increased by 44, 48, and 82% with fertilization in 2013, 2014, and 2015, respectively, while the other location increased by 43% only in 2015. At both locations, the medium constant rate (67 kg N ha<sup>–1</sup> yr<sup>–1</sup>) was the lowest rate that maximized total yield across 3 yr. This rate was efficient as it did not increase N removal in harvested biomass. Fertilization always increased leaf chlorophyll concentration (LCC) and site-years with relative LCCM. × giganteus on eroded soils with low organic matter content, and relative LCC can accurately identify when fertilization is required.</p>
dc.description.comments <p>This article is published as Yost, Matt A., Bryan K. Randall, Newell R. Kitchen, Emily A. Heaton, and Robert L. Myers. "Yield Potential and Nitrogen Requirements of× on Eroded Soil." Agronomy Journal 109, no. 2 (2017): 684-695. <a href="http://dx.doi.org/10.2134" target="_blank">10.2134/agronj2016.10.0582</a>. Posted with permission.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/agron_pubs/353/
dc.identifier.articleid 1354
dc.identifier.contextkey 11384533
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath agron_pubs/353
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/4702
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/agron_pubs/353/0-supplement1.pdf|||Fri Jan 14 23:44:54 UTC 2022
dc.source.bitstream archive/lib.dr.iastate.edu/agron_pubs/353/2017_Heaton_YieldPotential.pdf|||Fri Jan 14 23:44:56 UTC 2022
dc.source.uri 10.2134/agronj2016.10.0582
dc.subject.disciplines Agricultural Economics
dc.subject.disciplines Agricultural Science
dc.subject.disciplines Agriculture
dc.subject.disciplines Agronomy and Crop Sciences
dc.supplemental.bitstream supplement1.pdf
dc.title Yield Potential and Nitrogen Requirements of Miscanthus × giganteus on Eroded Soil
dc.type article
dc.type.genre article
dspace.entity.type Publication
relation.isAuthorOfPublication 716d7071-adb0-4700-9b63-b9da2205795e
relation.isOrgUnitOfPublication fdd5c06c-bdbe-469c-a38e-51e664fece7a
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