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

  • RAKES M
  • GRÜTZMACHER A
  • PAZINI J
  • et al.
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Abstract

ABSTRACT: The use of pesticide mixtures constitutes a relatively common practice in rice crops. Thus, the aim of this work was to evaluate the physicochemical interaction among different pesticide tank mixes for use in paddy field rice. The study has followed technical standards specified in ABNT [Associação Brasileira de Normas Técnicas (Brazilian National Standards Organization)] NBR [Norma Brasileira Regulamentadora (Brazilian Regulatory Standard)] NBR 13875:2014 for the assessment of physicochemical compatibility by means of a dynamic technique. Treatments consisted of mixtures of 12 pesticides, which constituted 16 treatments, six of which are composed by mixing herbicides, six by mixing herbicide and insecticide, one by mixing fungicides, and three by mixing fungicide and insecticide. Tank mixtures among herbicides Clincher® + Ricer®, Clincher® + Kifix®, Clincher® + Imazethapyr Plus Nortox®, Clincher® + Ricer® + Kifix®, Clincher® + Ricer® + Sirius® 250 CS, Imazethapyr Plus Nortox® + Basagran® 600, between herbicides and insecticides Clincher® + Ricer® + Arrivo® 200 EC, Clincher® + Kifix® + Arrivo® 200 EC, Clincher® + Imazethapyr Plus Nortox® + Arrivo® 200 EC, Clincher® + Ricer® + Kifix® + Arrivo® 200 EC, Clincher® + Ricer® + Sirius® 250 CS + Arrivo® 200 EC, Imazethapyr Plus Nortox® + Basagran® 600 + Arrivo® 200 EC, among fungicides Alterne® + Bim® 750 BR + Priori® 250 CS, and between fungicides and insecticides Bim® 750 BR + Actara® 250 WG, Alterne® + Bim® 750 BR + Priori® 250 CS + Actara® 250 WG, and Alterne® + Bim® 750 BR + Priori® 250 CS + Talisman® did not present any physicochemical change in the spray mix and are therefore compatible to be used in mixtures in the spray tank in plant treatments in rice crops.RESUMO: O uso de agrotóxicos em mistura no tanque de pulverização constitui prática comum na orizicultura. O objetivo desse trabalho foi avaliar a compatibilidade físico-química de misturas de agrotóxicos em tanque de pulverização para a cultura do arroz irrigado. O estudo seguiu os padrões técnicos especificados na norma da Associação Brasileira de Normas Técnicas - NBR 13875:2014 para avaliação de compatibilidade físico-química por meio da técnica dinâmica. Os tratamentos foram constituídos pelas misturas de 12 agrotóxicos, num total de 16 tratamentos, sendo seis compostos pela mistura de herbicidas; seis pela mistura de herbicida e inseticida; um pela mistura entre fungicidas; e três pela mistura de fungicida e inseticida. As misturas entre herbicidas Clincher®+Ricer®, Clincher®+Kifix®, Clincher®+Imazetapir Plus Nortox®, Clincher®+Ricer®+Kifix®, Clincher®+Ricer®+Sirius® 250 SC, e Imazetapir Plus Nortox®+Basagran® 600; entre herbicida e inseticida Clincher®+Ricer®+ Arrivo® 200 EC, Clincher®+Kifix®+Arrivo® 200 EC, Clincher®+Imazetapir Plus Nortox®+Arrivo® 200EC, Clincher®+Ricer®+Kifix®+Arrivo® 200 EC, Clincher®+Ricer®+Sirius® 250 SC+Arrivo® 200 EC e Imazetapir Plus Nortox®+Basagran® 600+Arrivo® 200 EC; entre fungicidas Alterne®+Bim® 750 BR+Priori® 250 SC; e entre fungicida e inseticida Bim® 750 BR+Actara® 250 WG, Alterne®+Bim® 750 BR+Priori® 250 SC+Actara® 250 WG e Alterne®+Bim® 750 BR+Priori® 250 SC+Talisman® não apresentaram qualquer alteração físico-química na calda e, portanto, são compatíveis para ser empregadas em tratamentos fitossanitários na cultura do arroz.

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APA

RAKES, M., GRÜTZMACHER, A. D., PAZINI, J. B., PASINI, R. A., & SCHAEDLER, C. E. (2018). Physicochemical Compatibility of Agrochemical Mixtures in Spray Tanks for Paddy Field Rice Crops. Planta Daninha, 35(0). https://doi.org/10.1590/s0100-83582017350100090

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