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

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

How to Cite

DAN, H. de A.; BARROSO, A. L. de L.; DAN, L. G. de M.; FINOTTI, T. R.; FELDKIRCHER, C.; SANTOS, V. S. WEED CONTROL IN MAIZE BY USING PRE-EMERGENCE HERBICIDES. Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics], Goiânia, v. 40, n. 4, p. 388–393, 2010. Disponível em: https://revistas.ufg.br/pat/article/view/6057. Acesso em: 17 jul. 2024.

Issue

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

Section

Plant Protection

License

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