Lixiviação de diuron, hexazinone e sulfometuron-methyl em formulação comercial e isoladamente em dois solos contrastantes

Garcia, Danilo de Brito; Alves, Samuel Neves Rodrigues; Cason, João Batista; Christoffoleti, Pedro Jacob

doi:10.7824/rbh.v11i2.172

Cited by 11 publications

(8 citation statements)

References 9 publications

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“…In the same study, Garcia et al (2012) confirmed the effectiveness of Front ® , applied on 5 t ha -1 straw, presenting control over Panicum maximum and Ipomoea triloba, after a period of 180 days with water restriction. Gaincotti et al (2014) also proved the effectiveness of this herbicide in controlling I. hederifolia and I. grandifolia after 90 days of water restriction and indicated that this satisfactory result is due to possible synergism relations among the molecules found in the product.…”

Section: Resultssupporting

confidence: 63%

“…This herbicide is commonly known as drought herbicide, because it presents individual characteristics of the three molecules; this gives the excellent result to the mixture: diuron has persistence in soils, hexazinone and sulfometuron-methyl have high solubility and biodegradation (Rodrigues and Almeida, 2011;Giancotti et al, 2012;Toledo et al, 2012). Toledo et al (2012) and Garcia et al (2012) while studying the diuron + hexazinone + sulfometuron-methyl herbicide in the raw cane system confirmed the high solubility characteristic, which makes it easily leached from the straw. The presence of straw on the soil surface, even if small (2.5 t ha -1 ), intercepts and retains this herbicide; a 10 mm water line is necessary to transport the product to the soil (Toledo et al, 2012).…”

Section: Resultsmentioning

confidence: 96%

“…The presence of straw on the soil surface, even if small (2.5 t ha -1 ), intercepts and retains this herbicide; a 10 mm water line is necessary to transport the product to the soil (Toledo et al, 2012). On the other hand, Garcia et al (2012) demonstrated that even with no rain, only with the field capacity, the mixture of diuron + hexazinone + sulfometuron-methyl molecules, Front ® , controls 80% of Ipomoea triloba, in the superficial soil layer from 0 to 10 cm.…”

Section: Resultsmentioning

confidence: 99%

“…The diuron + hexazinone + sulfometuron-methyl formulated mixture, according to Garcia et al (2012) and Inoue et al (2015) has good vertical mobility when applied on soils; it is influenced by the soil texture and by rainfalls. Both works concluded that sandy soils present higher mobility; on the other hand, the mixture mobility in clay soils is directly related to rainfalls.…”

Section: Introductionmentioning

confidence: 99%

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Controle de três espécies de Euphorbia por herbicidas aplicados em pré-emergência sobre a palhada de cana-de-açúcar

Ferreira

Silva

et al. 2016

RBHerbicidas

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-The permanence of straw on the ground changes the phytosociology of weeds and affects control by the difficulty of transposing from straw to soil; thus, it is extremely important to transport it as quickly as possible. This research had the goal to know the effectiveness of two herbicides, applied on straw in different periods without rain, in controlling three weed species from the Euphorbia genus. The experiments were conducted in a greenhouse using a completely randomized design, arranged in split-plot in time (rainless periods: 0, 15, 30 and 45 days), with three replications. Seeds were distributed over the soil and covered by a 10 t ha -1 straw layer. The application of diuron + hexazinone + sulfometuron-methyl and tebuthiuron herbicides was performed during pre-emergence on the straw. Then, respecting the rainless period, planters received an irrigation of 20 mm water. At 43 days, the visual control and dry mass of the aerial parts were evaluated. Data were submitted to analysis of variance and adjusted to the linear or quadratic equation model. E. hirta was 100% controlled by the two herbicides in all periods without rain. Tebuthiuron was not effective in controlling E. heterophylla and E. hyssopifolia after 45 days without rain. Diuron + hexazinone + sulfometuron-methyl herbicide is effective in controlling the three Euphorbia species, even when applied on the straw and after the 45-day period to be leached. Diuron + hexazinone + sulfometuron applied over sugarcane straw was effective in controlling all Euphorbia species studied. fundamental importância o seu transporte o mais rápido possível. Este trabalho teve por objetivo conhecer a eficiência de dois herbicidas, aplicados sobre palhada, em diferentes períodos sem chuva, no controle de E. heterophylla, E. hyssopifolia e E. hirta. Os experimentos foram conduzidos em casa-de-vegetação sob delineamento inteiramente casualizado, disposto em parcelas subdivididas no tempo (períodos sem chuva: 0, 15, 30 e 45 dias), com três repetições. As sementes foram distribuídas sobre o solo e cobertas por uma camada de palhada de 10 t ha -1 . A aplicação dos herbicidas, diuron + hexazinone + sulfometurom-metílico e tebuthiuron, foi realizada em pré-emergência sobre a palhada. Em seguida, respeitando o período sem chuva, os vasos receberam uma lâmina de irrigação de 20 mm de água. Aos 43 dias, foram avaliados o controle visual e a massa seca da parte aérea. Os dados foram submetidos à análise de variância e ajustados ao modelo de equação linear ou quadrática. E. hirta foi 100% controlada pelos dois herbicidas em todos os períodos sem chuva. O tebuthiuron não foi eficiente no controle de E. heterophylla e E. hyssopifolia após 45 dias sem chuva. O diuron + hexazinone + sulfometurom é eficiente no controle das três espécies de Euphorbia mesmo sendo aplicado sobre a palhada e passando o período de 45 dias para ser lixiviado. Diuron + hexazinone + sulfometurom aplicado sobre a palhada da cana-deaçúcar foi eficiente no controle de todas as espécies de Euphorbia estu...

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Section: Resultssupporting

confidence: 63%

Section: Resultsmentioning

confidence: 96%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Controle de três espécies de Euphorbia por herbicidas aplicados em pré-emergência sobre a palhada de cana-de-açúcar

Ferreira

Silva

et al. 2016

RBHerbicidas

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“…Hexazinone and imazapyr have the highest solubility values among products evaluated (Garcia et al, 2012;Gianelli et al, 2014), while sulfentrazone is extremely persistent in soil and has a low adsorption coefficient (Passos et al, 2013). Jointly, according to Gustafson (1989) and Laskowski et al (1982), these features help to classify these products as the most probably detected in groundwater (Table 5).…”

Section: Resultsmentioning

confidence: 99%

Herbicide detection in groundwater in Córrego Rico-SP watershed

et al. 2015

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-Due to the large amount of pesticides applied in agriculture, mainly herbicides, there is a growing concern about a possible environmental contamination with these products, including water bodies. Given the above, the aim of the present work was to detect and quantify herbicides through multiresidue analysis in water samples collected in semiartesian wells and springs in a rural area of the city of Jaboticabal (SP). Samples were collected from 32 wells and 13 water springs, in three different seasons: October 2010, February 2011 and May 2011. Additionally, samples at a residence in the urban area were also collected. Analysis using high performance liquid chromatography coupled to mass spectrometry was performed and herbicides ametryn, amicarbazone, clomazone, diclosulan, diuron, hexazinone, imazapic, imazapyr, isoxaflutole, S-metolachlor, sulfentrazone, sulfometuron-methyl, and tebuthiuron were evaluated. In semi-artesian wells, an incresed quantity of herbicides was found in comparison with the water springs. Among the tested herbicides, hexazinone, imazapyr and sulfentrazone were detected in measurable amounts in accordance with the analytical method applied, while clomazone was the most common herbicide being detected in more than 60% of the samples. Ametryn, diuron and amicarbazone herbicides were also detected. Diclosulan, imazapic, isoxaflutole, S-metolachlor, sulfometuron-methyl, and tebuthiuron were not detected in any sample. Inappropriate use of these products without prior knowledge of the behavior of the soil can lead to groundwaters and water springs contamination, thus an ongoing monitoring of this resource becomes very important.Keywords: sugarcane, LC-MS/MS, water springs, semi-artesian wells. ametryn, amicarbazone, clomazone, diclosulan, diuron, hexazinone, imazapic, imazapyr, isoxaflutole, S-metolachlor, sulfentrazone, sulfometuron-methyl SANTOS, E.A. et al. RESUMO -Em vista da grande quantidade de agroquímicos aplicados na agricultura, principalmente os herbicidas, cresce a preocupação com a possível contaminação do ambiente com esses produtos, inclusive em corpos d'água. Diante do exposto, o objetivo deste trabalho foi detectar e quantificar herbicidas, por meio de análise multirresíduo, em amostras de água coletadas em poços semiartesianos e nascentes, em uma área rural da cidade de Jaboticabal (SP). Foram coletadas amostras em 32 poços e 13 nascentes, em três épocas: outubro de 2010, fevereiro e maio de 2011. Foram coletadas, adicionalmente, amostras em uma residência na área urbana. Foi realizada análise por cromatografia líquida de alta eficiência acoplada à espectrometria de massas e foram avaliados os herbicidas

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Leaching of a Mixture of Hexazinone, Sulfometuron-Methyl, and Diuron Applied to Soils of Contrasting Textures

Mendes

Inoue

Goulart

et al. 2016

Water Air Soil Pollut

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Lixiviação de diuron, hexazinone e sulfometuron-methyl em formulação comercial e isoladamente em dois solos contrastantes

Cited by 11 publications

References 9 publications

Controle de três espécies de Euphorbia por herbicidas aplicados em pré-emergência sobre a palhada de cana-de-açúcar

Controle de três espécies de Euphorbia por herbicidas aplicados em pré-emergência sobre a palhada de cana-de-açúcar

Herbicide detection in groundwater in Córrego Rico-SP watershed

Leaching of a Mixture of Hexazinone, Sulfometuron-Methyl, and Diuron Applied to Soils of Contrasting Textures

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