Anhydrous ammonia application losses using single-disc and knife fertilizer injector

dc.contributor.author Hanna, H. Mark
dc.contributor.author Boyd, Paul
dc.contributor.author Baker, James
dc.contributor.author Colvin, Thomas
dc.contributor.department Agricultural and Biosystems Engineering
dc.date 2018-02-16T04:36:56.000
dc.date.accessioned 2020-06-29T22:41:30Z
dc.date.available 2020-06-29T22:41:30Z
dc.date.issued 2005-01-01
dc.description.abstract <p>Anhydrous ammonia (NH3) is injected below the soil surface during application to limit loss to the atmosphere. Application at a shallower depth may reduce tractor power or allow greater speed, which could increase field capacity if NH3 losses are held to acceptable levels. Losses of NH3 during, and for 1 h after, field application were measured from a typical knife injector treatment operated at a 15-cm (6-in.) depth and 8-km/h (5-mph) travel speed and from a single-disc injector operated at shallower depths [5 and 10 cm (2 and 4 in.)] and a range of travel speeds [8, 12, and 16 km/h (5, 7.5, and 10 mph)]. NH3 losses during application as measured with a hood over the single-disc injector were 3% to 7% in clay loam, silty clay loam, and loam soils and 21% to 52% in a coarser-textured fine sandy loam soil. Applying with a knife injector at deeper depth resulted in losses of 1% to 2% across all soil types. NH3 losses measured during an hour after application with stationary collection over the injection trench were 1% or less for all treatments. Losses during application were 5 to 55 times greater than during the first hour after application.</p>
dc.description.comments <p>This article is from <em>Applied Engineering in Agriculture</em> 21 (2005): 573–578, doi:<a href="http://dx.doi.org/10.13031/2013.18564" target="_blank">10.13031/2013.18564</a>.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/abe_eng_pubs/640/
dc.identifier.articleid 1912
dc.identifier.contextkey 6978363
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath abe_eng_pubs/640
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/1429
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/abe_eng_pubs/640/2005_Hanna_AnhydrousAmmonia.pdf|||Sat Jan 15 01:22:16 UTC 2022
dc.source.uri 10.13031/2013.18564
dc.subject.disciplines Agriculture
dc.subject.disciplines Bioresource and Agricultural Engineering
dc.subject.keywords Anhydrous ammonia
dc.subject.keywords Injector
dc.subject.keywords NH3
dc.subject.keywords nitrogen
dc.subject.keywords Knife
dc.subject.keywords Losses
dc.subject.keywords Opener
dc.title Anhydrous ammonia application losses using single-disc and knife fertilizer injector
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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