Dessecação de Crotalaria juncea no outono
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Data
2011-01-01
Autores
Espanhol, Melina [UNESP]
Parreira, Mariana C. [UNESP]
Duarte, Daniel J. [UNESP]
Correia, Núbia M. [UNESP]
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Resumo
The objective of this study was to evaluate the effect of glyphosate applied alone and in mixtures with 2.4-D or metsulfuron methyl in the desiccation of mature plants of Crotalaria juncea during the fall season, in a field crop. Two experiments were carried out using a randomized experimental block design, in a 4 × 3 factorial scheme, with four replications. Treatments in the first experiment were formed by four doses (0.00, 0.54, 1.08 and 1.62 kg ha -1) of glyphosate, associated with three doses (0.00, 0.806 and 1.209 kg ha -1) of 2 , 4-D. In the second experiment the same doses of glyphosate were studied associated with three doses (0.0 4.0 and 8.0 g ha -1) of metsulfuron-methyl. Visual evaluations of plant poisoning, score number of plants with regrowth and dry matter of plants were determined. It was concluded that glyphosate applied alone or in association with 2.4-D or metsulfuron-methyl, regardless of the applied doses, was ineffective in the desiccation of mature plants of Crotalaria juncea.
Descrição
Palavras-chave
Green manure, Herbicide, Weed control, Crotalaria, Crotalaria juncea
Como citar
Revista Brasileirade Ciencias Agrarias, v. 6, n. 1, p. 90-97, 2011.