SciELO - Scientific Electronic Library Online

 
vol.84Dois métodos para isolamento de Bacillus spp. endofíticos e edáficos de canaviaisEstádios de desenvolvimento da buva em competição com soja índice de autoresíndice de assuntospesquisa de artigos
Home Pagelista alfabética de periódicos  

Serviços Personalizados

Journal

Artigo

Indicadores

Links relacionados

Compartilhar


Arquivos do Instituto Biológico

versão On-line ISSN 1808-1657

Resumo

COSTA, Andréia Cristina Rodrigues da et al. Action of rain on formulations of glyphosate mixed with saflufenacil for the control of Brachiaria decumbens. Arq. Inst. Biol. [online]. 2017, vol.84, e0172015.  Epub 22-Jan-2018. ISSN 1808-1657.  https://doi.org/10.1590/1808-1657000172015.

This study aimed to evaluate the effects of rain on the efficiency of different formulations of glyphosate applied in isolation and in combination with saflufenacil on the control of Brachiaria decumbens. This study was conducted during the first half of 2013. The treatments consisted of an isolated application of three formulations of glyphosate (Roundup Original, Roundup Transorb R, and Roundup WG) at 1,080 g a.e. ha-1 and mixed with saflufenacil at 24.5 g a.e. ha-1 + Dash at 0.5% v/v at six time intervals of simulated rain: 15, 30, 60, 120, 240 and 360 minutes after application of herbicides and a control treatment without rain. We performed visual evaluations of plant control at 4, 7, 14, 21 and 28 days after application of herbicides. The mixture of saflufenacil + Dash with the original Roundup formulations, Roundup Transorb R and Roundup WG increased the control speed of B. decumbens plants regardless of the rain interval studied. The formulations of glyphosate (Roundup Transorb R and Roundup WG) applied in isolation were affected by rains that occurred shortly after spraying. In combination with saflufenacil + Dash, there was a synergistic effect on weed control.

Palavras-chave : Brachiaria; efficacy; herbicide; weed.

        · resumo em Português     · texto em Inglês     · Inglês ( pdf )