BIOSOLIDS IN LEACHING OF HERBICIDES MIMICKING AUXIN IN TROPICAL SOILS

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dc.contributor.authorSouza, P. D.
dc.contributor.authorSantos, Tuffi L. D.
dc.contributor.authorMontes, W. G.
dc.contributor.authorCruz, L. R. [UNESP]
dc.contributor.authorAzevedo, A. M.
dc.contributor.institutionUniversidade Federal de Minas Gerais (UFMG)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2018-11-26T16:01:22Z
dc.date.available2018-11-26T16:01:22Z
dc.date.issued2018-01-01
dc.description.abstractBiosolids are residues from the treatment of urban fluids used as a source of nutrients for agricultural and forestry crops. The organic matter contained in this residue and its chemical characteristics may interfere with the behavior of herbicides in the soil. The objective of this study was to evaluate the influence of biosolids on the potential for leaching herbicides mimicking auxin. Two simultaneous experiments were performed: a leaching test of picloram + 2.4-D in soil column with addition of thermally treated biosolids or solarized biosolids and another one to evaluate the effect of leachate application from the leaching tests under inert material. Each type of biosolid was incorporated in sandy soil in the proportions of 0%, 50%, 100% and 150% of the maximum recommended dose for subsurface fertilization for eucalyptus. The soil was conditioned in PVC columns and the herbicide columns based on picloram + 2.4-D ( Turuna (R) Commercial Formulation), corresponding to 240 g L-1 of 2.4-D + 64 g L-1 of picloram at a dose of 3.5 L ha(-1) of the commercial product. The columns were submitted to rain simulation and the resulting leachate was collected, followed by its application in sand-filled pots. The Cucumis sativus was sown along the profile of the soil columns and in the pots. The incorporation of the biosolid, independently of the type and dose tested did not interfere in the leaching potential of picloram + 2.4-D. Symptoms of intoxication were observed along all soil columns and pots. Therefore this residue is not very effective for the resolution of environmental problems caused by the leaching of auxin-mimicking herbicides in the soil.en
dc.description.affiliationUniv Fed Minas Gerais, Montes Claros, MG, Brazil
dc.description.affiliationUniv Estadual Paulista, Botucatu, SP, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Botucatu, SP, Brazil
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de Minas Gerais (FAPEMIG)
dc.description.sponsorshipBrazilian company Celulose Nipo-Brasileira S/A (Cenibra)
dc.description.sponsorshipBrazilian government National Council of Science and Technology (CCT)
dc.format.extent10
dc.identifierhttp://dx.doi.org/10.1590/S0100-83582018360100031
dc.identifier.citationPlanta Daninha. Vicosa: Univ Federal Vicosa, v. 36, 10 p., 2018.
dc.identifier.doi10.1590/S0100-83582018360100031
dc.identifier.fileS0100-83582018000100231.pdf
dc.identifier.issn0100-8358
dc.identifier.scieloS0100-83582018000100231
dc.identifier.urihttp://hdl.handle.net/11449/160322
dc.identifier.wosWOS:000433505000001
dc.language.isoeng
dc.publisherUniv Federal Vicosa
dc.relation.ispartofPlanta Daninha
dc.relation.ispartofsjr0,365
dc.rights.accessRightsAcesso aberto
dc.sourceWeb of Science
dc.subjectpicloram+2.4-D
dc.subjectsewage sludge
dc.subjectBioassay
dc.subjectleaching herbicides
dc.titleBIOSOLIDS IN LEACHING OF HERBICIDES MIMICKING AUXIN IN TROPICAL SOILSen
dc.typeArtigo
dcterms.rightsHolderUniv Federal Vicosa

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