EFEITO DE MÉTODOS DE CONTROLE DE PLANTAS DANINHAS NA QUALIDADE DA BEBIDA DE CAFÉ
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Data
2011
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Resumo
O cafeeiro, por ser uma cultura sensível à competição com o mato, requer um sistema de manejo de plantas daninhas bastante eficiente. O presente trabalho foi instalado, na Fazenda Experimental da EPAMIG – em lavoura plantada em janeiro de 2006 com o cultivar Paraíso, espaçamento 4,0 x 0,70m em São Sebastião do Paraíso-MG. O propósito desse estudo foi observar se diferentes métodos de controle de plantas daninhas poderiam afetar a qualidade da bebida do cafeeiro. O estudo foi disposto em blocos ao acaso, com sete tratamentos de manejo mato, no cafeeiro e consistiram de uso de roçadoura, grade, enxada rotativa, herbicida de pós-emergência (glyphosate), herbicida de pré- emergência (oxyfluorfen), capina manual e testemunha sem capina, efetuados nas entrelinhas, da lavoura cafeeira em três repetições. As amostras dos diversos tratamentos foram colhidas e secas, separadamente e enviadas para o Laboratório de Qualidade de Café em Santo Antônio do Amparo, MG, para análise sensorial dos provadores. O resultados mostraram que os tratamentos, roçadora, grade, herbicida de pós e de pré-emergência, na entrelinha do cafeeiro, apresentaram qualidade de bebida superior a 80 pontos, no ano 2007/2008, em 2008/2009 somente o tratamento com herbicida de pré-emergência, apresentou bebida acima de 80 pontos este resultado sugere que as condições climáticas (como precipitação) durante a colheita em 2009 pode ter afetado os demais tratamentos durante a colheita. Em 2010, por outro lado, somente o tratamento sem capina mostrou pontuação inferior a 80 pontos. Os dados sugerem que o tratamento das entre linhas sempre mantido no limpo com herbicida de pré-emergência, é um tratamento que além de contribuir para um maior crescimento, desenvolvimento e produção pode contribuir para uma melhora na qualidade de bebida de acordo com a classificação da BSCA de cafés especiais.
The coffee crop, is a plantation very sensitive to weed competition, and requires one efficient weed management system. This work was installed at the Experimental Farm EPAMIG in São Sebastião do Paraíso – MG. The coffee crop was planted in January 2006 with the coffee cultivar Paraíso, 4.0 x 0.70 m spacing. The purpose of this study was to observe whether different control methods would affect coffee drinking qualities. The study was arranged in randomized blocks design with seven treatments at coffee inter rows and tree replications. Weed control methods at coffee inter rows consisted of mower, disk harrow, rotary tiller, post-emergence and pre-emergence herbicide respectively (glyphosate) and (oxyfluorfen), manual weeding and no weed control at inter rows. Coffee grain samples of each treatment were take and dried separately and sent to Santo Antonio do Amparo, Minas Gerais Coffee Quality Laboratory, for the sensory taster analyses. The results showed that the treatments, mower, disk harrow, post and pre-emergence herbicide, at inter rows of coffee plants, showed at least 80 points in drink quality in 2007/2008, but in 2008/2009 only pre-emergence herbicide treatment, had drinks up to 80 points, this result suggest that the weather conditions as rainfall during the harvesting in 2009 may have affected the other treatments. In 2010, on the other side only the control treatment (no weed control) showed less than 80 points. The data indicated that inter rows treatment always kept cleaned with the pre- emergence herbicide, is a treatment that also contributes to higher growth, development and yield, besides the better coffee drink quality according to the BSCA classification of specialty coffees.
The coffee crop, is a plantation very sensitive to weed competition, and requires one efficient weed management system. This work was installed at the Experimental Farm EPAMIG in São Sebastião do Paraíso – MG. The coffee crop was planted in January 2006 with the coffee cultivar Paraíso, 4.0 x 0.70 m spacing. The purpose of this study was to observe whether different control methods would affect coffee drinking qualities. The study was arranged in randomized blocks design with seven treatments at coffee inter rows and tree replications. Weed control methods at coffee inter rows consisted of mower, disk harrow, rotary tiller, post-emergence and pre-emergence herbicide respectively (glyphosate) and (oxyfluorfen), manual weeding and no weed control at inter rows. Coffee grain samples of each treatment were take and dried separately and sent to Santo Antonio do Amparo, Minas Gerais Coffee Quality Laboratory, for the sensory taster analyses. The results showed that the treatments, mower, disk harrow, post and pre-emergence herbicide, at inter rows of coffee plants, showed at least 80 points in drink quality in 2007/2008, but in 2008/2009 only pre-emergence herbicide treatment, had drinks up to 80 points, this result suggest that the weather conditions as rainfall during the harvesting in 2009 may have affected the other treatments. In 2010, on the other side only the control treatment (no weed control) showed less than 80 points. The data indicated that inter rows treatment always kept cleaned with the pre- emergence herbicide, is a treatment that also contributes to higher growth, development and yield, besides the better coffee drink quality according to the BSCA classification of specialty coffees.
Descrição
Trabalho apresentado no Simpósio de Pesquisa dos Cafés do Brasil (7. : 2011 : Araxá, MG). Anais Brasília, D.F: Embrapa - Café, 2011
Palavras-chave
Métodos controle mato, análise sensorial, cafeeiro., Weed control; sensory evaluation, coffee crop.
Citação
Alcântara, Elifas Nunes de; Oliveira, Gustavo Scofield. Efeito de métodos de controle de plantas daninhas na qualidade da bebida de café. In: Simpósio de Pesquisa dos cafés do Brasil (7. : 2011 : Araxá, MG). Anais Brasília, D.F: Embrapa - Café, 2011 (1 CD-ROM), 3p.