WEED CONTROL IN MAIZE BY USING PRE-EMERGENCE HERBICIDES

Authors

  • Hugo de Almeida Dan Universidade Estadual de Maringá, UEM.
  • Alberto Leão de Lemos Barroso FESURV
  • Lilian Gomes de Moraes Dan Universidade estadual de Maringá-UEM
  • Thiago Rezende Finotti FESURV
  • Cleriston Feldkircher FESURV
  • Vanessa Soares Santos UNIC

DOI:

https://doi.org/10.5216/pat.v40i4.6057

Keywords:

Zea mays, atrazine, s-metolachor, simazine, no-tillage

Abstract

This study aimed to estimate the effectiveness of weed control in maize (Zea mays L.), under a no-till system, in the Cerrado (Brazilian Savanna) region, by applying pre-emergence herbicides. Two experiments were carried out in Montevidiu, Goiás State, Brazil, during the 2007/2008 crop, in a randomized block design, with four replications. The following treatments were evaluated: atrazine (1,600 g ha-1), atrazine + s-metolachor (1,665 g ha-1 + 1,305 g ha-1), s-metolachor (1,680 g ha-1), atrazine + simazine (250 g ha-1 + 250 g ha-1), and control with and without weeds. It was found out that, 28 days after the treatments application, the herbicides atrazine and s-metolachor were not effective in controlling Cenchrus echinatus and Alternanthera tenella, respectively. The associations between atrazine + s-metolachor and atrazine + simazine have provided significant increases in the Euphorbia heterophilla and Alternanthera tenella control. The presence of weeds had a negative effect on crop yield.

KEY-WORDS: Zea mays; atrazine; s-metolachor; simazine; no-tillage.

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Author Biographies

  • Hugo de Almeida Dan, Universidade Estadual de Maringá, UEM.
    Discente do Programa de Pós-Graduação em Agronomia pela Universidade Estadual de Maringá, PR.
  • Alberto Leão de Lemos Barroso, FESURV
    Professor adjunto, FESURV, Rio Verde-GO.
  • Lilian Gomes de Moraes Dan, Universidade estadual de Maringá-UEM
    Discente do Programa de Pós-Graduação em Agronomia pela Universidade Estadual de Maringá, PR.
  • Thiago Rezende Finotti, FESURV
    Acadêmico em Agronomia, FESURV, Rio Verde-GO.
  • Cleriston Feldkircher, FESURV
    Acadêmico em Agronomia, FESURV, Rio Verde-GO.
  • Vanessa Soares Santos, UNIC
    Acadêmica em Agronomia, UNIC, Rondonopolis, MT.

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Published

2010-11-05

Issue

v. 40, n. 4, Oct./Dec. 2010

Section

Plant Protection

License

Authors will not be paid for published articles and must waive their copyright in favor of the PAT journal. On the other hand, they are solely responsible for the content of those articles, even if the Editor holds the right to adjust them to the norms of the journal. Authors are allowed to publish their articles simultaneously in their institutional repositories, as soon as the original publication at the PAT journal is mentioned.

How to Cite

DAN, H. DE A. et al. WEED CONTROL IN MAIZE BY USING PRE-EMERGENCE HERBICIDES. Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics], v. 40, n. 4, p. 388–393, 5 Nov.2010.