Characterization of the clomazone sorption process in four agricultural soils using different kinetic models

Đurović-Pejčev, Rada; Radmanović, Svjetlana B.; Tomić, Ž.; Kaluđerović, Lazar; Đorđević, Tijana

doi:10.1039/d2em00272h

Cited by 3 publications

(2 citation statements)

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“…There is a secondary release risk of NP adsorbed in sediments, which is closely related to the safety of the aquatic ecological environment and received much research concern. 12 Black carbon (BC), one kind of organic matter material, has a highly aromatic structure and is equipped with abundant functional groups and numerous micro-pores, which promotes its active role in sediment, especially for pollutant adsorption. [13][14][15] Meanwhile, some adsorbed molecules might enter the deeper part of BC along micro-pores and their interconnected channels, resulting in irreversible adsorption.…”

Section: Introductionmentioning

confidence: 99%

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The effect of the ageing process on the desorption of nonylphenol in black carbon-sediment systems: a kineto-mechanistic and modeling investigation

Sun,

Liu,

Liu

et al. 2024

Environ. Sci.: Processes Impacts

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Section: Introductionmentioning

confidence: 99%

“…There is a secondary release risk of NP adsorbed in sediments, which is closely related to the safety of the aquatic ecological environment and received much research concern. 12…”

Section: Introductionmentioning

confidence: 99%

The effect of the ageing process on the desorption of nonylphenol in black carbon-sediment systems: a kineto-mechanistic and modeling investigation

Sun,

Liu,

Liu

et al. 2024

Environ. Sci.: Processes Impacts

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Soil dissipation and efficacy on itchgrass of soil‐applied residual herbicides pendimethalin and clomazone in Louisiana sugarcane

Wayment,

Wright,

Bergeron

et al. 2024

Pest Management Science

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BACKGROUNDSugarcane (Saccharum sp.) growers in Louisiana report that the widely used soil residual herbicide, pendimethalin, is less effective at controlling itchgrass (Rottboellia chochinchinensis), possibly through accelerated dissipation from repeated applications. Some growers have started to use another herbicide, clomazone, in place of pendimethalin for itchgrass control when pendimethalin does not provide the necessary control. Little is known about the dissipation of these two herbicides, especially when applied together, in diverse sugarcane soils in Louisiana. Thus, the objective of the research was to measure the dissipation of pendimethalin and clomazone in soils having high itchgrass pressure. Soil samples from five fields were fortified (4 μg g−1) with clomazone and pendimethalin and monitored over the course of 163 days under laboratory conditions. Herbicide levels were determined by extracting the herbicides from soil with acetonitrile and analyzing the extracts with high performance liquid chromatography (HPLC).RESULTSThe results indicate that clomazone is persistent in the soils studied, with a degradation half‐life (DT50) of ≥79 days. Pendimethalin dissipates more rapidly in soil with a DT50 ranging from 7 to 59 days. All itchgrass plants showed injury to herbicide but many grew out of symptoms, and responses were not consistent between soil types.CONCLUSIONPendimethalin dissipation varied greatly between soil types, yet clomazone was generally persistent in each soil tested. However, when these soils were seeded with itchgrass, pendimethalin was more effective at controlling itchgrass than clomazone. Although persistent in the soils tested, the leaching potential of clomazone may limit its long‐term effectiveness. Published 2024. This article is a U.S. Government work and is in the public domain in the USA.

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Assessment of the Effects of ZnO and CuO Engineered Nanoparticles on Physicochemical Properties of Volcanic Ash Soil and Phosphorus Availability

Suazo-Hernández,

Sans-Serramitjana,

de la Luz Mora

et al. 2024

Environments

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The presence of engineered nanoparticles (ENPs) in soil systems can modify their properties and the availability of nutrients. This study evaluated the effect of 1% CuO or ZnO ENPs on the physicochemical properties and on the phosphorus (P) adsorption–desorption processes of a volcanic ash soil (Lautaro; LAU). The dynamics of P were conducted through kinetic and isotherm batch experiments. The results showed that LAU soil with 1% CuO or ZnO ENPs increased pHH2O (from 5.67 to 6.03 and 6.82, respectively), electrical conductivity (from 0.119 to 0.143 and 0.150 dS m−1, respectively), Zn availability (597.7 times higher for LAU with 1% ZnO ENPs in relation to soil without ENPs), and Cu availability (41.8 times higher for LAU with 1% CuO ENPs in relation to soil without ENPs). Moreover, the presence of ENPs decreased Brunauer, Emmett, and Teller specific surface area. The adsorption kinetic studies of P on LAU soil without and with 1% ENPs fitted well to the Elovich model (r2 ≥ 0.923), which indicated a chemiadsorption mechanism, whereas the adsorption isotherms were described by Langmuir–Freundlich model (r2 ≥ 0.939). The desorption percentage was LAU > LAU + 1% CuO–ENPs > LAU + 1% ZnO–ENPs, demonstrating an increased stability of the P–soil surface binding with 1% ENPs. Co–existing NO3−, SeO42−, and SO42− anions did not generate a steric hindrance between P and LAU soil binding. Finally, both ENPs could alter the quality of the soil due to changes in their physicochemical properties and decrease the availability of P in volcanic ash soils.

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Characterization of the clomazone sorption process in four agricultural soils using different kinetic models

Abstract: Kinetic studies are important for understanding the parameters and processes involved in pesticides sorption to soil. Considering clomazone agricultural and environmental relevance, its sorption kinetics was studied in four agricultural...

Cited by 3 publications

References 31 publications

The effect of the ageing process on the desorption of nonylphenol in black carbon-sediment systems: a kineto-mechanistic and modeling investigation

The effect of the ageing process on the desorption of nonylphenol in black carbon-sediment systems: a kineto-mechanistic and modeling investigation

Soil dissipation and efficacy on itchgrass of soil‐applied residual herbicides pendimethalin and clomazone in Louisiana sugarcane

Assessment of the Effects of ZnO and CuO Engineered Nanoparticles on Physicochemical Properties of Volcanic Ash Soil and Phosphorus Availability

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