Critérios para avaliação do potencial de lixiviação dos herbicidas comercializados no Estado do Paraná

By M. H. Inoue, R. S. Oliveira, Jussara Borges Regitano, C. A. Tormena, V. L. Tornisielo, J. Constantin. 2003

66 citations recorded by the source corpus.

A survey was carried out on the commercialization of herbicides in Parana, to verify their total input in the environment. Based on the chemical properties of these herbicides, theoretical criteria ranking them according to their leaching potential were evaluated. The highest volume of commercialization was found to occur from October to November, probably related to the increased demand caused by the summer crop cycle. The mechanisms of action whose consumption is most expressive are the aminoacid synthesis inhibitors (36.9% of the total volume), followed by the photosynthesis inhibitors (31.3%), synthetic auxins (11%) and mitosis inhibitors (8.8%). The herbicides glyphosate (4526.28 t), atrazine (3075.91), 2,4-D (1659.33) and sulfosate (631.60 t) account together for around 65% of the total volume commercialized in the state. Ranking herbicides according to their leaching potential showed that acifluorfen-sodium, alachlor, atrazine, chlorimuron-ethyl, fomesafen, hexazinone, imazamox, imazapyr, imazaquin, imazethapyr, metolachlor, metribuzin, metsulfuron-methyl, nicosulfuron, picloram, sulfentrazone and tebuthiuron are potential leachers according to the three theoretical criteria adopted (GUS, CDFA and Cohen).

Subfields: Plant Science, Pollution

View Paper: https://www.semanticscholar.org/paper/cbef23464612ce93b2b043086b1f5da9094854a3

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  3. J. Chandrasekar
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  5. Samuel S. Bernstein
  6. Xavier Vazhappilly Francis
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