Fecha/hora: 16/06/2024 00:11:30

Biblioteca(s): | INIA Las Brujas.
Fecha corriente: | 31/01/2020
Fecha de la última actualización: | 31/01/2020
Autoria: | CULPEPPER, A.S.; GIMÉNEZ, A.; YORK, A.C.; BATTS, R.B.; WILCUT, J.W.
Afiliación: | A. STANLEY CULPEPPER; AGUSTIN EDUARDO GIMÉNEZ FUREST, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; A. C. YORK; ROGER B. BATTS; JOHN W. WILCUT.
Título: | Morningglory (Ipomoea spp.) and Large Crabgrass (Digitaria sanguinalis) Control with Glyphosate and 2,4-DB Mixtures in Glyphosate-Resistant Soybean (Glycine max).
Año de publicación: | 2001
Fuente/Imprenta: | Weed Technology, January/March 2001, Volume 15, Issue 1, Pages 56-61.
ISSN: | 0890-037X
DOI: | 10.1614/0890-037X(2001)015[0056:MISALC]2.0.CO;2
Idioma: | Inglés
Notas: | Article history: Received for publication February 14, 2000, and in revised form September 27, 2000.

Contenido:

ABSTRACT.
Glyphosate effectively controls most weeds in glyphosate-resistant soybean. However, it is sometimes only marginally effective on Ipomoea spp. A field experiment was conducted at five locations in North Carolina to determine the effects of mixing 2,4-DB with glyphosate on Ipomoea spp. control and on soybean injury and yield. The isopropylamine salt of glyphosate at 560, 840, and 1,120 g ai/ha controlled mixtures of tall morningglory, entireleaf morningglory, and red morningglory at least 96% at two locations. Mixing the dimethylamine salt of 2,4-DB at 35 g ae/ha with glyphosate did not increase control but reduced soybean yield 6%. At two other locations, 2,4-DB increased control of tall morningglory and a mixture of entireleaf morningglory and ivyleaf morningglory 13 to 22% when mixed with glyphosate at 560 g/ha, but not when mixed with glyphosate at 840 or 1,120 g/ha. Soybean yield was reduced 31% at one location and was unaffected at the other. At the fifth location, 2,4-DB increased control of tall morningglory 25, 11, and 7% when mixed with glyphosate at 560, 840, and 1,120 g/ha, respectively. Soybean yield was increased 15%. In separate field experiments, glyphosate at 560, 840, and 1,120 g/ha controlled large crabgrass at least 99%. Mixing 2,4-DB at 35 g/ha with glyphosate did not affect control. In the greenhouse, mixing 2,4-DB at 35, 70, 140, or 280 g/ha with glyphosate at 70 to 560 g/ha did not affect large crabgrass control by glyphosate.

Palabras-Clave: | Herbicide combinations; Herbicide interactions; Herbicide-resistant crops.
Categoría del tema: | F01 Cultivo
Registro original: | INIA Las Brujas (LB)
Ejemplares: | LB - (102142-1) - PXI - AP - DD - PP/WEED TECHNOLOGY/2001 -  -  - DIS