Pre-sowing application of combinations of burndown and pre-emergent herbicides for Conyza spp. control in soybean

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dc.creatorAlfredo Junior Paiola Albrecht
dc.creatorLeandro Paiola Albrecht
dc.creatorSamuel Neves Rodrigues Alves
dc.creatorAndré Felipe Moreira Silva
dc.creatorWeslei de Oliveira Silva
dc.creatorJuliano Bortoluzzi Lorenzetti
dc.creatorMaikon Tiago Yamada Danilussi
dc.creatorArthur Arrobas Martins Barroso
dc.date2021
dc.date.accessioned2026-07-07T02:44:41Z
dc.descriptionTogether, Conyza bonariensis, C. canadensis and C. sumatrensis show 105 reported cases of biotypes resistant to herbicides like glyphosate, paraquat, and acetolactate synthase (ALS) inhibitors . The application of pre-emergent herbicides combined with burndown herbicides is believed to be effective in controlling Conyza spp. during soybean pre-sowing management. The objective of this study was to evaluate the efficacy of sulfen-trazone/diuron, imazethapyr/flumioxazin, and diclosulam in mixtures with diquat, paraquat, or glufosinate on the control of Conyza spp. Two field experiments were conducted in a randomized block design with four replicates. Treatments consisted of the application of pre-emergent plus burndown herbicides, besides the weedy control treatment (without application), for a total of 10 treatments. The control of Conyza spp. was evaluated at 7, 14, 21, 28, and 35 d after herbicide application, and symptoms of injury in soybean plants were evaluated at 14, 21, 28, and 35 d after herbicide application. The herbicides sulfentrazone/diuron, imazethapyr/flumioxazin, and diclosulam in combination with burndown herbicides diquat, paraquat, or glufosinate were effective in controlling Conyza spp. in the pre-sowing management of soybean, highlighting good options for pre- and post-emergent herbicide rotations. Mixtures with diclosulam showed a higher potential for injury to soybean plants than sulfentrazone/diuron and imazethapyr/flumioxazin.
dc.formatapplication/pdf
dc.identifier0120-9965
dc.identifierhttps://www.redalyc.org/articulo.oa?id=180376043015
dc.identifierhttps://www.redalyc.org/journal/1803/180376043015/
dc.identifierhttps://www.redalyc.org/journal/1803/180376043015/html/
dc.identifierhttps://www.redalyc.org/journal/1803/180376043015/180376043015.epub
dc.identifierhttps://www.redalyc.org/journal/1803/180376043015/movil
dc.identifier10.15446/agron.colomb.v39n1.89545
dc.identifier.urihttp://hdl.handle.net/123456789/422497
dc.languageen
dc.publisherUniversidad Nacional de Colombia
dc.relationhttp://www.redalyc.org/revista.oa?id=1803
dc.rightsAgronomía Colombiana
dc.sourceAgronomía Colombiana (Colombia) Num.1 Vol.39
dc.subjectAgrociencias
dc.titlePre-sowing application of combinations of burndown and pre-emergent herbicides for Conyza spp. control in soybean
dc.typeartículo científico

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Agronomía Colombiana - Universidad Nacional de Colombia