Recovery of Cynodon nlemfuensis pasture after desiccation with glyphosate in pre-sowing of maize.

• Autor(a) principal: BRIGHENTI, A. M.
• Data de Publicação: 2013
• Outros Autores: VIEIRA, P. H. S.
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)
• Texto Completo: http://www.alice.cnptia.embrapa.br/alice/handle/doc/980703
• topic: African-star-grass; Crop-livestock integration; No-till; Cynodon nlemfuensis; forage grasses

The aim of this study was to assess the recovery capacity of the African-star-grass (Cynodon nlemfuensis) desiccated with glyphosate in pre-sowing of maize crop. The experimental design was a completely randomized block, with four repetitions. In experiment 1 were applied doses of the equivalent acid (e.a.) of glyphosate herbicide: 0; 720; 1.440; 2.160; 2.880 e 3.600 g ha-1. In experiment 2, was done the no till of the maize, after application of the same doses of glyphosate on African-star-grass and on a hoed control. African-stargrass usually is tolerant to normally recommended doses of the glyphosate herbicide (720 - 2.160 g ha-1). Doses ranging from 1.206 to 1.492 g ha-1 results on suppression of the African-star-grass, avoiding its competition with the maize crop and allowing the recovery of pasture.