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Acta Scientiarum: Agronomy
Article . 2006
Data sources: DOAJ
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Aplicações seqüenciais de flumicloracpentil para o controle de Euphorbia heterophylla na cultura da soja = Sequential application of flumicloracpentil for Euphorbia heterophylla control in soybeans

Authors: Rubem Silvério de Oliveira Jr; Jamil Constantin; Roberto Toledo; Luciano Hiroyuki Kajihara; Ângelo Stasieviski; Paulo Humberto Pagliari; João Guilherme Zanetti de Arantes; +3 Authors

Aplicações seqüenciais de flumicloracpentil para o controle de Euphorbia heterophylla na cultura da soja = Sequential application of flumicloracpentil for Euphorbia heterophylla control in soybeans

Abstract

Euphorbia heterophylla destacase como a principal planta daninha na cultura da soja no Estado do Paraná, não só pela sua disseminação, mas também pela natural dificuldade de controle e pela ocorrência de biótipos que apresentam resistência. Em face de tais problemas, buscou se avaliar a eficácia de aplicações seqüenciais em pós emergência de flumicloracpentil no controle dessa planta daninha. As aplicações seqüenciais de flumicloracpentil foram superiores, em termos de eficácia, às doses recomendadas em aplicação única, promovendo no mínimo 86% de controle aos 24 dias após a aplicação dasegunda etapa das seqüenciais. Todas as combinações de doses de flumicloracpentil avaliadas promoveram controle adequado de E. heterophylla, desde que aplicadas no estádio de duas folhas verdadeiras. Comparando se os resultados obtidos em casadevegetaçãoe em estufa, observou se que, em condições de campo, o sombreamento imposto pela soja auxilia no nível de controle final da planta daninha.Wild poinsettia (Euphorbia heterophylla) is one the most importantweeds in soybean fields in the state of Paraná, not only for its dissemination, but also due to its natural difficulty of controlling features by herbicides and to occurrence of resistant biotypes. Facing those problems, an evaluation of the field and greenhouse trials was carried out in order to check the efficacy of postemergencesequential application of flumicloracpentil to control this weed. Sequential applications of flumicloracpentil were more efficientthan a single application, promoting, at least, 86% of weed control on the 24th day after the second application of the sequential treatments. All the evaluated combinations of flumiclorac rates once sprayed at two true leaves stage, promoted adequate control of E. heterophylla. Comparing the greenhouse and the field results, it was concluded that, under field conditions, the canopy provided by the crop helps to improve the weed final control.

Keywords

Agriculture (General), efficacy, PROTOX inhibitors, leiteiro, fomesafen, Wild poinsettia, S1-972, herbicides, eficácia, herbicidas, inibidores da PROTOX, lactofen

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
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