Availability of Metribuzin-Loaded Polymeric Nanoparticles in Different Soil Systems: An Important Study on the Development of Safe Nanoherbicides

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dc.contributor.authorTakeshita, Vanessa
dc.contributor.authorMunhoz-Garcia, Gustavo Vinicios
dc.contributor.authorWerk Pinácio, Camila
dc.contributor.authorCardoso, Brian Cintra
dc.contributor.authorNalin, Daniel
dc.contributor.authorTornisielo, Valdemar Luiz
dc.contributor.authorFraceto, Leonardo Fernandes [UNESP]
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.date.accessioned2023-07-29T15:41:50Z
dc.date.available2023-07-29T15:41:50Z
dc.date.issued2022-12-01
dc.description.abstractNanoformulations have been used to improve the delivery of fertilizers, pesticides, and growth regulators, with a focus on more sustainable agriculture. Nanoherbicide research has focused on efficiency gains through targeted delivery and environmental risk reduction. However, research on the behavior and safety of the application of these formulations in cropping systems is still limited. Organic matter contained in cropping systems can change the dynamics of herbicide–soil interactions in the presence of nanoformulations. The aim of this study was to use classical protocols from regulatory studies to understand the retention and mobility dynamics of a metribuzin nanoformulation, compared to a conventional formulation. We used different soil systems and soil with added fresh organic material. The batch method was used for sorption–desorption studies and soil thin layer chromatography for mobility studies, both by radiometric techniques. Sorption parameters for both formulations showed that retention is a reversible process in all soil systems (H~1.0). In deep soil with added fresh organic material, nanoformulation was more sorbed (14.61 ± 1.41%) than commercial formulation (9.72 ± 1.81%) (p < 0.05). However, even with the presence of straw as a physical barrier, metribuzin in nano and conventional formulations was mobile in the soil, indicating that the straw can act as a barrier to reduce herbicide mobility but is not impeditive to herbicide availability in the soil. Our results suggest that environmental safety depends on organic material maintenance in the soil system. The availability can be essential for weed control, associated with nanoformulation efficiency, in relation to the conventional formulation.en
dc.description.affiliationCenter of Nuclear Energy in Agriculture University of São Paulo, Av. Centenário 303, SP
dc.description.affiliationInstitute of Science and Technology São Paulo State University (UNESP), Av. Três de Março 511, SP
dc.description.affiliationUnespInstitute of Science and Technology São Paulo State University (UNESP), Av. Três de Março 511, SP
dc.identifierhttp://dx.doi.org/10.3390/plants11233366
dc.identifier.citationPlants, v. 11, n. 23, 2022.
dc.identifier.doi10.3390/plants11233366
dc.identifier.issn2223-7747
dc.identifier.scopus2-s2.0-85143585650
dc.identifier.urihttp://hdl.handle.net/11449/249454
dc.language.isoeng
dc.relation.ispartofPlants
dc.sourceScopus
dc.subjectnanoformulation
dc.subjectnanoherbicide
dc.subjectsoil mobility
dc.subjectsoil organic matter
dc.subjectsorption–desorption
dc.titleAvailability of Metribuzin-Loaded Polymeric Nanoparticles in Different Soil Systems: An Important Study on the Development of Safe Nanoherbicidesen
dc.typeArtigo
unesp.author.orcid0000-0003-3325-0543[1]
unesp.author.orcid0000-0002-3891-3310[2]
unesp.author.orcid0000-0002-2827-2038[7]

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