Determination of oxadiazon residues in the field treated soil with and without organic matter incorporated

Mendes, Kássio Ferreira; Reis, Marcelo Rodrigues dos; Passos, Ana Beatriz Rocha de Jesus; Inoue, Miriam Hiroko; Silva, Antônio Alberto da; Silva, Daniel Valadão

doi:10.1007/s12665-015-5061-8

Cited by 4 publications

(5 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The addition of cattle manure to the soils may be an alternative to avoid herbicide losses by draining or leaching due to the sorption increase, as already proven with the addition of organic compounds in the works done by Mendes et al (2016), Gonçalves et al (2012) and Briceño et al (2008). However, most desorption experiments showed higher K fd values with the increase of the manure incubated in LVAG and LVAV soils.…”

Section: (A) (B) (A) (B)mentioning

confidence: 84%

Sorption and Desorption of Diuron, Hexazinone and Mix (Diuron + Hexazinone) in Soils With Different Attributes

et al. 2018

View full text Add to dashboard Cite

In Brazil, sugarcane is grown in large areas. Weed control in sugarcane fields is done by chemical method, since it is more efficient and less expensive. In this method, herbicides that persist in the environment for long periods are used, among which there are hexazinone and diuron, which are applied in mixtures marketed by the industry. This research evaluated the sorption and desorption of hexazinone and diuron applied alone and in mixture, in two samples of Red-Yellow Latosols (LVAG and LVAV) and a Organosol (OR), with and without manure. Sorption isotherms were built using the batch equilibrium method and the identification and quantification of herbicides was obtained through a high-performance liquid chromatography (HPLC) with UV-Vis detector. There were high diuron sorption coefficients (Kf) in the soils. The hexazinone Kf values found were low in LVAG and LVAV soils, and they were high ground only in OR. In all soils, diuron and hexazinone showed higher Kf values when mixed. There was a direct relation between the addition of manure to the substrate and the Kf values . Higher desorption values (Kfd) in relation to those of sorption in LVAG and LVAV soils indicate gradual release of these herbicides in the soil solution when using organic fertilizer, showing increased sorption and desorption of these molecules; this is accentuated when they are mixed. In the Organosol, desorption was very low, and cannot be quantitated by the used method. It is possible to conclude that the incubation of LVAG and LVAV soil with manure helps both the process of sorption and desorption of herbicides. However, sorption and desorption in the Organosol is high indicating very low agrochemicals such strong bonds with soil colloids.

show abstract

Section: (A) (B) (A) (B)mentioning

confidence: 84%

Sorption and Desorption of Diuron, Hexazinone and Mix (Diuron + Hexazinone) in Soils With Different Attributes

et al. 2018

View full text Add to dashboard Cite

show abstract

“…Mendes et al (2018a), in soils amended with bonechar (coal derived from bovine bones) applied superficially, they obtained total retention of the herbicides aminocylopyrachlor and mesotrione, indicating the potential of bonechar to be a remover of this material. Mendes et al (2016) found higher oxadiazon concentrations above the 0.10 m depth in the soil profile, 64 days after herbicide application, and low concentrations of herbicides at the other depths. This was due to the higher affinity of the herbicide for the SOM contents (4.3 and 4.9%) present in soils, resulting in less product mobility.…”

Section: Organic Matter Of Soil In Transportation Of Herbicidesmentioning

confidence: 77%

“…There are studies that demonstrate that the dissipation of herbicides is dependent on SOM. Mendes et al (2016) observed that oxadiazon t 1/2 was higher in MOS treated soils than in those without treatment. Melo et al (2010) studied the residual effects of sulfentrazone, isoxaflutole, and oxyfluorfen in three different soils.…”

Section: Organic Matter Of the Soil In The Effectiveness Of Weed Controlmentioning

confidence: 84%

“…When the molecules have higher retention in SOM, such as in the case of nonionic and neutral herbicides, due to the greater affinity with the hydrophobic components of SOM, there is a lower availability for weed absorption and control. Mendes et al (2016) found greater t 1/2 of dissipation values (9 days) for oxadiazon (nonionic herbicide, with log K ow of 5.33) in soil containing incorporated organic material, compared to soil without the addition of organic material (t 1/2 = 6 days). The authors indicated that even with a short t 1/2 of dissipation; the herbicide remained more concentrated in the first centimeters of the soil, especially when in the presence of organic material.…”

Section: Organic Matter Of the Soil In The Effectiveness Of Weed Controlmentioning

confidence: 91%

See 1 more Smart Citation

Effect of Organic Matter on the Behavior and Control Effectiveness of Herbicides in Soil

et al. 2019

View full text Add to dashboard Cite

With extensive use of herbicides in agricultural areas, the risk of contamination of groundwater and surface water by these products has become a worldwide concern. Practices of application or maintenance of soil organic residues that have begun to be used in agriculture for soil nutrition have demonstrated other benefits besides nutrient supplementation, such as reduced mobility and increased soil degradation of herbicides. Because it is the final destination of herbicides, soil and its constituents, especially organic matter in tropical soils, play a prominent role in processes that encompass the dynamics of herbicide molecules. In this context, it is necessary to know the influence of the organic matter and its constituents on the behavior of the herbicides. This review discusses the main relationships of organic matter in the retention, transport, and transformation processes of herbicides in the soil, as well as the interference in the weed control effectiveness of these products. Because of this, knowing the influence of organic matter in the various processes related to the behavior of herbicides in the soil allows us to adopt more appropriate management practices regarding both weed control and remediation of contaminated areas. However, despite the wide range of information on the subject in the literature, each situation is distinct due to the wide variation in the behavioral response of the products to the different types of organic material present in the soil.

show abstract

“…A quantificação da sorção de um herbicida no solo normalmente é realizada por cromatografia (MENDES et al, 2016). Contudo, diversas pesquisas têm evidenciado a possibilidade de estimar a sorção utilizando-se testes biológicos (ANDRADE et al, 2010, BRAGA et al, 2016, FARIA et al, 2018.…”

Section: Introductionunclassified

Espécies indicadoras de resíduos de saflufenacil em solos

Júnior¹,

Agazzi²,

Pereira³

et al. 2019

RBHerbicidas

View full text Add to dashboard Cite

Um dos métodos, eficientes e de baixo custo, para estimar a presença de herbicidas no solo é o biológico. Entretanto, antes de se utilizar este método é necessário identificar espécies que apresentam alta sensibilidade ao herbicida em estudo. Esta pesquisa teve como objetivo selecionar espécies que apresentem alta sensibilidade ao saflufenacil para posteriores estudos da dinâmica desse herbicida no solo. Foram avaliadas a sensibilidade de sete espécies de plantas ao saflufenacil (Curcubita pepo, Beta vulgaris, Daucus carota, Citrullus lanatus, Cucumis sativus, Sorghum bicolor e Solanum lycopersicum). Para isso, estas espécies foram cultivadas em substrato inerte (areia lavada) tratado com doses crescentes do saflufenacil (0,0; 0,625; 1,25; 2,50; 5,0; 10,0 e 20,0 g ha-1). As espécies B. vulgaris, S. lycopersicum e S. bicolor foram as mais sensíveis ao saflufenacil. Dentre estas espécies, B. vulgaris é de fácil cultivo, crescimento rápido e permite rápida visualização dos sintomas de intoxicação. Concluiu-se que B. vulgaris pode ser considerada como indicadora da presença do saflufenacil na solução do solo para estudos da dinâmica desse herbicida em solos.

show abstract

Determination of oxadiazon residues in the field treated soil with and without organic matter incorporated

Cited by 4 publications

References 27 publications

Sorption and Desorption of Diuron, Hexazinone and Mix (Diuron + Hexazinone) in Soils With Different Attributes

Sorption and Desorption of Diuron, Hexazinone and Mix (Diuron + Hexazinone) in Soils With Different Attributes

Effect of Organic Matter on the Behavior and Control Effectiveness of Herbicides in Soil

Espécies indicadoras de resíduos de saflufenacil em solos

Contact Info

Product

Resources

About