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dc.contributor.authorVillalba, Juana-
dc.contributor.authorMartins, Dagoberto-
dc.contributor.authorRodrigues, Andreia-
dc.contributor.authorAlves-Cardoso, Leonildo-
dc.identifier.citationAgrociencia. Texcoco: Colegio de Postgraduados, v. 43, n. 5, p. 465-473, 2009.-
dc.description.abstractThe effect of application with different nozzle types and volume rates on spray deposition in the V3 stage of two soybean cultivars was evaluated. The experiments were conducted in the Facultad de Ciencias Agronomicas of the UNESP-Botucatu/SP. The nozzles evaluated were an air induced flat fan nozzle (Al 11015 at 150 L ha(-1), Al 11002 at 200 and 250 L ha(-1)), a twin flat fan nozzle (TJ 60 11002 at 150, 200 and 250 L ha(-1)), and a cone nozzle (TX 6 at 150 L ha(-1), TX 8 at 150 L ha(-1) and TX 10 at 250 L ha(-1)). To evaluate spray deposition on the plants, a tracer (Brilliant Blue FD&C-1) was added. The experimental design was random blocks with four replications. Deposition on plants was determined by absorbancy reading in 630 nm wavelength. The data were adjusted to a calibration curve and transformed into deposited spray volume in mL. The relationship deposition per unit of dry matter was adjusted to a regression curve (Gompertz model). In cultivar CD 208, the highest deposit was for the larger volumes and for the treatment TX 8 200 L ha(-1). The most uniform treatments were all the nozzles with the volume 150 L ha(-1) and the TJ60 nozzle for 200 1, ha(-1). In cultivar CD 216, the greatest spray depositions were achieved with the treatments Al at 200 and 250 L ha(-1) and TJ 60 at 250 L ha(-1), and the most uniform treatments were the TX 6 and TJ60 nozzles for the volume150 L ha(-1).en
dc.publisherColegio de Postgraduados-
dc.sourceWeb of Science-
dc.subjectGlycine max (L.) Merrillen
dc.subjectApplication technologyen
dc.titleEffect of types of nozzles on spray deposition on two soybean varieties in stage V3en
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)-
dc.description.affiliationUniv Estadual Paulista, Fac Ciencias Agron, Dept Prod Vegetal, BR-18610307 Botucatu, SP, Brazil-
dc.description.affiliationUnespUniv Estadual Paulista, Fac Ciencias Agron, Dept Prod Vegetal, BR-18610307 Botucatu, SP, Brazil-
dc.rights.accessRightsAcesso aberto-
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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