Carryover of herbicides used in cotton stalk control on soybean cultivated in succession

Francischini, Alessandra Constantin; Constantin, Jamil; Matte, Willian Daróz; Oliveira, Rubem Silvério de; Machado, Fellipe Goulart; Morota, Felipe Kiyoshi

doi:10.1590/s0100-83582020380100056

Cited by 3 publications

(1 citation statement)

References 12 publications

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“…O grupo químico do ácido benzoico tem como representante o herbicida dicamba (Atectra ® ), registrado para dessecação em pós-emergência das plantas daninhas em présemeadura da cultura da soja não tolerante, na dose de 0,6 a 1 litro do p.c ha -1 (ADAPAR, 2018). Este herbicida apresenta um valor de pKa = 1,87 (ácido forte) fazendo com que o mesmo permaneça, neste pH de solo, na sua forma aniônica, e somado a sua alta solubilidade em água (4500mg L -1 à 25ºC), seu baixo potencial de bioacumulação (Log Kow = -0,55 em pH = 5) e seu baixa adsorção a argila e matéria orgânica do solo (Koc 2 mg g -1 ) podem favorecer a disponibilidade do herbicida à solução do solo, apresentando atividade residual e efeito carryover, além de favorecer a lixiviação do ingrediente ativo no perfil do solo, principalmente em solos com baixo teor de carbono (GROOVER, 1977;RODRIGUES & ALMEIDA, 2018;FRANCISCHINI, ET AL., 2020).…”

Section: Resultsunclassified

Efeito residual de herbicidas auxínicos em associação ao glyphosate no manejo de dessecação em pré-semeadura e a influência na produção e qualidade das sementes de soja

Ferreira¹

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Residual herbicide effect of auxinic herbicide in tank mix with glyphosate in preplanting burndown managment and its influence on production and quality of soybean seedsThe Brazilian 2020/2021 harvest put Brazil on the top of the biggest producer and exporter of soybean in the world. In the harvest 2021/2022 the oilseeds occupy more than 40 millions of hectares, with drop in productivity in 14.4% compared to the previous crop. There are countless factors that make Brazilians productions a world reference, among them the production system. On this way, the used of pesticide to weed control is essential. A very adopted strategy by farmes is the pre-planting burndown with auxinic hebricide in tank mix with glyphosate, providing that crop growing free of interference by weeds. That way, its necessary to study the residual effect to this herbicides to produtivity na seeds quality of these biochemistry na physiology of soybean in differents production systems. Thus, was carried out two field experiment and one performed in seeds laboratory. Te fields experiment was carried out in diferentes cityes and prodution system, locate in Piracicaba -SP and Araras -SP. Both test were installed in randomized block design in triple factorial scheme (5 x 5x 2), where it was avaluated four auxin herbicide plus a untreated check, five application times were avaluated in the soybean pre-planting ande 2 locale. The residual effect was avaluated by visual assessments proposed by SBCPD, components and yeld. The second experimente was performed at the Seeds Laboratory of the Agronomic Science Department of the Federal University of Paraná -Sector Palotina, in Palotina -PR, with aim to verifying if the herbicide treatments when applied in diferents pre-planting periods affect the biochemical and physiological quality of soybean seeds. For this, a germination test was carried out on a paper roll in a Mangelsdorf type germinator, as well as the electrical conductivity test. From the field trials it was concluded that the dicamba presented a high injury to culture at zero time application. But the fluroxypyr was the unique herbicide treatment that don't show more than 10% of injury independent of time application. The laboratory test show that the herbicide auxinic managment didn't affect the quality of the soybean seeds.

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Section: Resultsunclassified

Efeito residual de herbicidas auxínicos em associação ao glyphosate no manejo de dessecação em pré-semeadura e a influência na produção e qualidade das sementes de soja

Ferreira¹

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Cumulative potential and half-life of [imazapic + imazapyr] in lowland soils of Rio Grande Do Sul grown with clearfield® rice

Melo

Thiel

Silva

et al. 2022

Journal of Environmental Science and Health, Part B

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Can pre- and/or post-emergent herbicide application affect soybean seed quality?

Ceretta,

Albrecht,

Albrecht

et al. 2023

Rev. Caatinga

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Soybean cultivation requires herbicide application in the off-season, before emergence for weed desiccation, and after emergence. It is believed that the use of preand post-emergent herbicides combined with preharvest application may negatively affect the quality of soybean seeds. As such, the present study aimed to assess the effect of preand post-emergent herbicides on soybean seed quality. Five field experiments were conducted during the 2018/2019 and 2019/2020 growing seasons to investigate the effects of synthetic auxins and pre-emergents, acetyl-CoA carboxylase (ACCase) inhibitors, broadleaf herbicides, and s-metolachlor or clomazone on the quality of soybean seeds. Dicamba application combined with the pre-emergent herbicides imazethapyr/flumioxazin before soybean planting reduced seed vigor and germination. ACCase inhibitors in association with broadleaf herbicides before planting had no effect on seed quality. Applying s-metolachlor (up to 2,880 g of active ingredient [ai] ha-1) or clomazone (up to 1,800 g ai ha-1) was safe for seed germination, even when used after soybean emergence.

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Carryover of herbicides used in cotton stalk control on soybean cultivated in succession

Cited by 3 publications

References 12 publications

Efeito residual de herbicidas auxínicos em associação ao glyphosate no manejo de dessecação em pré-semeadura e a influência na produção e qualidade das sementes de soja

Efeito residual de herbicidas auxínicos em associação ao glyphosate no manejo de dessecação em pré-semeadura e a influência na produção e qualidade das sementes de soja

Cumulative potential and half-life of [imazapic + imazapyr] in lowland soils of Rio Grande Do Sul grown with clearfield® rice

Can pre- and/or post-emergent herbicide application affect soybean seed quality?

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