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Dynamics of herbicide degradation in cauliflower

Author

Listed:
  • Jaroslav ŠUK

    (Department of Agroecology and Biometeorology, Czech University of Life Sciences Prague, Prague, Czech Republic)

  • Miroslav JURSÍK

    (Department of Agroecology and Biometeorology, Czech University of Life Sciences Prague, Prague, Czech Republic)

  • Marie SUCHANOVÁ

    (Department of Food Analysis and Nutrition, University of Chemistry and Technology Prague, Prague, Czech Republic)

  • Dana SCHUSTEROVÁ

    (Department of Food Analysis and Nutrition, University of Chemistry and Technology Prague, Prague, Czech Republic)

  • Kateřina HAMOUZOVÁ

    (Department of Agroecology and Biometeorology, Czech University of Life Sciences Prague, Prague, Czech Republic)

Abstract

The aim of this work was to compare the dynamics of the degradation of herbicides commonly used in brassica vegetables. Series of plot field experiments were carried out in planting cauliflower in 2012-2014. The amount of herbicide residues with the maximum residue level (MRL) determined by the Regulation (EC) No. 396/2005 and with requirements of non-residue production (up to 10 µg/kg of active ingredient in harvested product) was compared. Napropamide, clomazone and dimethachlor were applied before planting and pendimethalin, S-metolachlor, pyridate, ethametsulfuron, dimethenamid, metazachlor, quinmerac, picloram, clopyralid, cycloxydim, fluazifop, propaquizafop and quizalofop were applied after planting the cauliflower. Besides fluazifop and quizalofop, all tested herbicides showed a fast degradation and can be recommended for non-residue production. The amount of fluazifop residues did not fall below the MRL even 6 weeks after application. Residues of post-emergently applied quizalofop were detected in cauliflower 10-44 days after application in most of the samples at concentration 9-73 µg/kg(below the MRL).

Suggested Citation

  • Jaroslav ŠUK & Miroslav JURSÍK & Marie SUCHANOVÁ & Dana SCHUSTEROVÁ & Kateřina HAMOUZOVÁ, 2018. "Dynamics of herbicide degradation in cauliflower," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 64(11), pages 551-556.
    • Handle: RePEc:caa:jnlpse:v:64:y:2018:i:11:id:312-2018-pse
    DOI: 10.17221/312/2018-PSE
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    Cited by:

    1. Ivana Doležalová & Irena Petrželová & Martin Duchoslav, 2020. "Selectivity and efficacy of herbicides dimethachlor and pethoxamid in rocket crop," Plant Protection Science, Czech Academy of Agricultural Sciences, vol. 56(4), pages 305-316.

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