Effects of Nozzle Type and Carrier Application on the Control of Leaf Spot Diseases of Soybean

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dc.contributor.author Hanna, H. Mark
dc.contributor.author Hanna, H. Mark
dc.contributor.author Robertson, Alison
dc.contributor.author Carlton, W. Mark
dc.contributor.author Robertson, Alison
dc.contributor.author Wolf, Robert
dc.contributor.department Agricultural and Biosystems Engineering
dc.date 2018-02-16T04:47:21.000
dc.date.accessioned 2020-06-29T22:34:16Z
dc.date.available 2020-06-29T22:34:16Z
dc.date.copyright Sun Jan 01 00:00:00 UTC 2006
dc.date.embargo 2015-04-13
dc.date.issued 2006-01-01
dc.description.abstract <p>Midwestern soybean growers seek information on effective application of foliar fungicides that do not translocate throughout the plant. Field application treatments included using a two-orifice nozzle tip producing fine droplets at 187 l/ha (20 gal/ac) and 112 l/ha (12 gal/ac) and a single-orifice nozzle tip producing a coarse droplet size more typical of herbicide applications at 168 l/ha (18 gal/ac). In addition an air-assisted sprayer was used at one of the two sites of the trials. Measurements included droplet size, droplet coverage, and foliar disease severity in the top, middle, and lower parts of the plant canopy, and soybean yield.</p> <p>Droplet size for application treatments generally followed expected manufacturer specifications. Percentage area covered and drops/cm <sup>2 </sup>were not statistically different among application treatments except at top of the plant canopy at one site. Percentage area covered and drops/cm <sup>2 </sup>were statistically greater at the top of the canopy (17 - 18% coverage) than at the middle or bottom (1 – 8% coverage) at both sites. Foliar disease pressure was light so that yield or disease severity was unaffected by application method or as compared to a check area without application.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/abe_eng_conf/425/
dc.identifier.articleid 1430
dc.identifier.contextkey 6979617
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath abe_eng_conf/425
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/455
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/abe_eng_conf/425/2006_Hanna_EffectsNozzle.pdf|||Sat Jan 15 00:13:43 UTC 2022
dc.source.uri 10.13031/2013.20646
dc.subject.disciplines Agricultural Science
dc.subject.disciplines Agriculture
dc.subject.disciplines Bioresource and Agricultural Engineering
dc.subject.disciplines Plant Pathology
dc.subject.keywords Plant Pathology and Microbiology
dc.subject.keywords air-assist
dc.subject.keywords application
dc.subject.keywords disease
dc.subject.keywords fungicide
dc.subject.keywords nozzle tip
dc.subject.keywords soybean
dc.subject.keywords canopy penetration
dc.title Effects of Nozzle Type and Carrier Application on the Control of Leaf Spot Diseases of Soybean
dc.type article
dc.type.genre conference
dspace.entity.type Publication
relation.isAuthorOfPublication 732298de-2ea9-4502-8fcf-3418080016e1
relation.isAuthorOfPublication 3af53836-8d87-4424-a6ca-b087069a2945
relation.isOrgUnitOfPublication 8eb24241-0d92-4baf-ae75-08f716d30801
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