Machine Losses from Conventional versus Narrow Row Corn Harvest

dc.contributor.author Hanna, H. Mark
dc.contributor.author Hanna, H. Mark
dc.contributor.author Kohl, Kris
dc.contributor.author Haden, David
dc.contributor.department Agricultural and Biosystems Engineering
dc.date 2018-02-16T04:46:04.000
dc.date.accessioned 2020-06-29T22:41:25Z
dc.date.available 2020-06-29T22:41:25Z
dc.date.copyright Tue Jan 01 00:00:00 UTC 2002
dc.date.issued 2002-01-01
dc.description.abstract <p>Growers of 38–cm (15–in.) narrow row corn typically use either a wider row cornhead or locally modify an existing head to this row spacing. A three–year field experiment compared visible machine losses of a 76–cm (30–in.) cornhead used on 76–cm (30–in.) and 38–cm (15–in.) rows and a single gathering chain 38–cm (15–in.) cornhead used on 38–cm (15–in.) rows. Total machine losses were divided into head and threshing/separating losses. <br /><br />On matched row spacing, machine losses were generally similar between the 76– and 38–cm (30– and 15–in.) cornhead. However, one–year losses from the 76–cm (30–in.) cornhead were statistically lower. Machine ear drop losses were excessive [0.9 to 1.3 Mg/ha (15 to 20 bu/acre) in two of three years] and unacceptable when a 76–cm (30–in.) cornhead was used even at low 3.2–km/h (2–mph) travel speeds to harvest corn in 38–cm (15–in.) rows. At low feed rates, over 90% of machine losses occurred at the cornhead rather than in the threshing, separating, and cleaning areas. Header losses occurred due to ear drop from late season harvest and negligible losses inside the machine when operated at 4.8 km/h (3 mph). Although shelling of kernels on the stalk rolls was about 1% of harvested yield or less, ear drop loss from the cornhead was greater than this amount in two of three years.</p>
dc.description.comments <p>This article is from <em>Applied Engineering in Agriculture</em> 18 (2002): 405–409, doi:<a href="http://dx.doi.org/10.13031/2013.8744)" target="_blank">10.13031/2013.8744</a>. Posted with permission.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/abe_eng_pubs/630/
dc.identifier.articleid 1922
dc.identifier.contextkey 6979512
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath abe_eng_pubs/630
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/1418
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/abe_eng_pubs/630/2002_Hanna_MachineLosses.pdf|||Sat Jan 15 01:20:22 UTC 2022
dc.source.uri 10.13031/2013.8744
dc.subject.disciplines Agriculture
dc.subject.disciplines Bioresource and Agricultural Engineering
dc.subject.keywords Corn
dc.subject.keywords Cornheads
dc.subject.keywords Combines
dc.subject.keywords Harvesting machinery
dc.subject.keywords Losses
dc.subject.keywords Narrow row
dc.subject.keywords Row spacing
dc.title Machine Losses from Conventional versus Narrow Row Corn Harvest
dc.type article
dc.type.genre article
dspace.entity.type Publication
relation.isAuthorOfPublication 732298de-2ea9-4502-8fcf-3418080016e1
relation.isOrgUnitOfPublication 8eb24241-0d92-4baf-ae75-08f716d30801
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