Physicochemical Compatibility of Agrochemical Mixtures in Spray Tanks for Paddy Field Rice Crops

Rakes, Matheus; Grützmacher, Anderson Dionei; Pazini, Juliano de Bastos; Pasini, Rafael Antônio; Schaedler, Carlos Eduardo

doi:10.1590/s0100-83582017350100090

Cited by 9 publications

(7 citation statements)

References 8 publications

(16 reference statements)

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“…Physicochemical compatibility has been demonstrated some herbicides used in rice, such as cyhalofop-butyl, penoxsulam, pyrazosulfuron-ethyl, and imazethapyr, with no visible signs of incompatibility such as flocculation, sedimentation, phase separation, and foam formation in the tank (Rakes et al, 2017). However, adding imazapyr and imazapic to other herbicides used in rice cultivation reduced the pH of the mixture to values below 2.5, which can interfere with the effectiveness of the active ingredients (Rakes et al, 2017).…”

Section: Physicochemical Incompatibilitymentioning

confidence: 99%

Herbicide mixtures: interactions and modeling

Barbieri¹,

Young²,

Dayan³

et al. 2022

Advances in Weed Science

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This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided that the original author and source are credited.This review compiles information on physiological and physicochemical interactions between herbicides, addressing the most known cases of synergism, antagonism, and additivity, as well as their physiological bases, and the methods for evaluating herbicide interactions. Reference models for herbicide interactions have been reported and they usually interfere interpretation of the mixture effect. Antagonistic interactions can increase the evolution of weed resistance by favoring the survival of individuals exposed to the herbicide. Physicochemical incompatibility in the spray tank usually causes herbicide antagonism, whereas both synergism and antagonism can result from increased or decreased uptake/translocation and from physiological changes in the plant.

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Section: Physicochemical Incompatibilitymentioning

confidence: 99%

Herbicide mixtures: interactions and modeling

Barbieri¹,

Young²,

Dayan³

et al. 2022

Advances in Weed Science

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show abstract

“…De forma geral, as interações físicas estão relacionadas a formulação e solvente dos produtos, sendo este o primeiro tipo de interação, ocorrendo a formação de precipitados ou grânulos, o que poderá ocasionar o entupimento dos filtros e pontas de pulverização. As interações físicas geralmente são dependentes das características físico-químicas das moléculas como a solubilidade, constante de ionização (pKa) e coeficiente de partição octanol-água (Kow), sendo essas as primeiras reações, levandoas em seguida as interações químicas, que estão relacionadas a molécula do ingrediente ativo dos produtos, podendo causar a toxidez as culturas através das inativações por radicais presentes nas moléculas, por exemplo (PETTER et al, 2012;GAZZIERO, 2015;RAKES et al, 2018).…”

Section: Principais Problemas Observados Em Misturas De Agrotóxicosunclassified

Mistura de Agrotóxicos e Tecnologia de Aplicação

Silva¹,

Oliveira²,

Pinho³

et al. 2021

Informe Técnico (Programa De Pós-Graduação Em Fitotecnia Da Universidade Federal Rural Do Rio De Janeiro)

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“…The antagonism, synergism, and efficiency of commercial and tank mixes have been evaluated in several studies (Petter et al, 2012;Chhokar et al, 2013;Riley and Bradley, 2014;Hamdona, 2017;Rakes et al, 2017;Reis et al, 2017). However, despite the several benefits of this practice, little is known about its effects on the leaching potential of molecules.…”

Section: Introductionmentioning

confidence: 99%