Weed control and preservation of native legumes species in natural grassland by herbicide localized application

  • J. G. Farias Departamento de Zootecnia - Universidade Federal de Santa Maria
  • E. L. Moojen Departamento de Zootecnia - Universidade Federal de Santa Maria
  • F. Jochims Departamento de Zootecnia - Universidade Federal de Santa Maria
  • D. B. Galvani EMBRAPA Sobral, Ceara, Brasil
  • F. Barzotto SPEI, Passo Fundo, RS, Brasil
  • S. O. Machado Departamento de defesa fitossanitária - Universidade Federal de Santa Maria

Keywords:

Chemical mowing, Desmodium incanum, Vernonia nudiflora

Abstract

To evaluate the effect of localized application of herbicides by contact, in Desmodium incanum, this trial was conducted during a period of 353 days. The experimental design was a split plot arranged in a randomized block design with three replications in a factorial arrangement [(5x3) +1], five herbicides plus the control and three evaluation periods. The plots corresponded to herbicides, doses were locate: 1.5, 3.0 and 4.5 L ha -1 of Tordon, Aminol 806, Garlon, Grazon e Plenum, being composed by 8 tables arranged on a fixed line. Prior to application, was made a survey, another in 60 and 353 days after application. For the herbicides application, was used a chemical applicator, which consists in an adjustable height platform, and it is contact is only with the target plant. The use of chemical applicator was effective for controlling undesirable species besides not interfere on Desmodium incanum frequency besides being interesting for selective cleaning and preservation of the native vegetation.

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References

Boldrini I.I. 2002. Campos sulinos: caracterização e biodiversidade. In: Biodiversidade, conservação e uso sustentável da flora do Brasil (E.A. Araújo, E.V.S.B. Sampaio, L.M.T. Gestinari Org.). 1ed. Recife: Imprensa Universitária, UFRPE.

Boldrini I.I. 1997. Campos do Rio Grande do Sul: caracterização fisionômica e problemática ocupacional. Boletim do Instituto de Biociências Porto Alegre 56(37): 1-39.

Cella Júnior A.A. 2005. Sensibilidade de leguminosas forrageiras nativas a herbicidas em pós-emergência. Dissertação (Mestrado em Zootecnia) - Universidade Federal de Santa Maria. Santa Maria. pp. 55.

Freitas F.C.L, L.R Ferreira, A.A Silva, J.G. Barbosa, G.V. Miranda & A. F.L. Machado. 2003. Eficiência do triclopyr no controle de plantas daninhas em gramado (Paspalum notatum) Planta Daninha 21(1): 159-164.

Machado L.A.Z. 1999. Manejo de pastagem nativa. Guaíba: Agropecuária.

Pellegrini L.G., C. Nabinger, P.L.F. Carvalho & M. Neumann. 2007. Diferentes métodos de controle de plantas indesejáveis em pastagem nativa. Rev. Bras. Zootec. 36(5): 1247-1254.

Published

2020-03-21

How to Cite

Farias, J. G., Moojen, E. L., Jochims, F., Galvani, D. B., Barzotto, F., & Machado, S. O. (2020). Weed control and preservation of native legumes species in natural grassland by herbicide localized application. Semiárida, 22, 49–52. Retrieved from https://ojs.unlpam.edu.ar/index.php/semiarida/article/view/4452