Sorption behaviour of acetochlor, atrazine, carbendazim, diazinon, imidacloprid and isoproturon on Hungarian agricultural soil

Nemeth-Konda, L; Füleky, György; Morovjan, Gy; Csokan, P

doi:10.1016/s0045-6535(02)00106-6

Cited by 175 publications

(92 citation statements)

References 8 publications

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“…If we correlate the K FOC with aromatic units, without using mineral fertilization the correlation improves tremendously, suggesting that higher aromatic compound contents induce higher K FOC values. As presented in previous work (17), where the soil organic matter of the soils used was characterized by several techniques such as 13 C NMR and FTIR spectroscopy, the farmyard manure presented evidence of higher aromatic content. The more prevalent the aromatic content is, when compared to the hydrophilic (mostly polysaccharide), the greater the hydrophobicity of the humic substances.…”

Section: Resultssupporting

confidence: 55%

Sorption−Desorption Behavior of Atrazine on Soils Subjected to Different Organic Long-Term Amendments

Lima

Schneider

Scherer

et al. 2010

J. Agric. Food Chem.

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Sorption of atrazine on soils subjected to three different organic amendments was measured using a batch equilibrium technique. A higher K F value (2.20 kg -1 (mg L -1 ) -N ) was obtained for soil fertilized with compost, which had a higher organic matter (OM) content. A correlation between the K FOC values and the percentage of aromatic carbon in OM was observed. The highest K FOC value was obtained for the soil with the highest aromatic content. Higher aromatic content results in higher hydrophobicity of OM, and hydrophobic interactions play a key role in binding of atrazine. On the other hand, the soil amended with farmyard manure had a higher content of carboxylic units, which could be responsible for hydrogen bonding between atrazine and OM. Dominance of hydrogen bonds compared to hydrophobic interactions can be responsible for the lower desorption capacity observed with the farmyard manure soil. The stronger hydrogen bonding can reduce the leaching of atrazine into drinking water resources and runoff to rivers and other surface waters.

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Section: Resultssupporting

confidence: 55%

Sorption−Desorption Behavior of Atrazine on Soils Subjected to Different Organic Long-Term Amendments

Lima

Schneider

Scherer

et al. 2010

J. Agric. Food Chem.

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“…In general, decreasing herbicide adsorption at higher temperatures has been observed and correlated to the increase of the solubility of herbicide (Kovaios et al, 2006). Atrazine solubility in water was reported to be 33 mg L -1 at 20°C while the solubility of metolachlor in water was 530 mg L -1 at 20°C (Nemeth-Konda et al, 2002). In addition, at higher temperatures, the bond between component atoms and soil surface might be weaker so that herbicides can easily move from soil to water solute, resulting in a decrease of sorption with increasing temperatures.…”

Section: Adsorption Equilibrium Of Atrazine and Metolachlormentioning

confidence: 99%

Aspect of the degradation and adsorption kinetics of atrazine and metolachlor in andisol soil

Jaikaew

Malhat

Boulangé

et al. 2017

Hellenic Plant Protection Journal

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SummaryThe degradation kinetics and sorption characteristics of atrazine and metolachlor in Japanese andisol soil were evaluated using laboratory incubation of soil samples. The water content of the soil was set to field capacity while three different temperatures (5, 25 and 35°C) were considered for the experiment. First order model fitted the degradation kinetics of both herbicides under the investigated temperature range with half-lives ranging from 19.2 to 46.9 days for atrazine and from 23.4 to 66.9 days for metolachlor, respectively. The activation energies (Ea) of atrazine and metolachlor calculated using Arhenius equation were 21.47 and 23.91 kJ mol−1, respectively. The soil sorption study was conducted using the batch equilibrium process. The adsorption behaviors of atrazine and metolachlor were investigated using linear, Freundlich and Langmuir isotherms although the linear and Freundlich isotherms gave relatively high correlation coefficient (R2) and very low standard error of estimate (SEE). The free energy (ΔG°) values were in the range −30.6 to −32.0 kJ/mol, and −32.1 to −41.5 kJ/mol for atrazine and metolachlor, respectively. Thermodynamic parameters indicated that the adsorption is spontaneous, endothermic accompanied by increase in entropy. The understanding of atrazine and metolachlor sorption processes is essential to determine the pesticide fate and availability in soil for pest control, biodegradation, runoff and leaching.

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“…(1-1/n) .l (1/n) /kg and from 0.84 to 7.11 l/kg, respectively (Nemeth-Konda et al 2002;Zheng & Ye 2002;Hiller et al 2008Hiller et al , 2009). Sorption of acetochlor decreases with soil depth and becomes negligible in sandy aquifer materials with low organic carbon contents (Janniche et al 2011).…”

mentioning

confidence: 95%

“…Available studies have documented that the desorption of acetochlor from soils was hysteretic (i.e. desorption is not complete even when multiple desorption cycles are applied), however, no conclusive statements about the effects of soil properties on the acetochlor desorption were shown (Nemeth-Konda et al 2002;Taylor et al 2004). Studies on the distribution behaviour of acetochlor in soils are still of great importance because understanding the relationship between soil properties and sorption-desorption of acetochlor is essential for predicting its potential for leaching to groundwater as well as its ecological effects on living organisms and plants.…”

mentioning

confidence: 99%

Retention characteristics of acetochlor in soils collected from different depths in relation to soil properties (Žitný ostrov area, SW Slovakia)

Tatarková¹,

Hiller²,

Halko³

2014

Soil & Water Res.

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Tatarková V., Hiller E., Halko R. (2014): Retention characteristics of acetochlor in soils collected from different depths in relation to soil properties (Žitný ostrov area, SW Slovakia). Soil & Water Res., 9: 58-65.Determination of the sorption-desorption of herbicides within soil profile is one of the first steps in predicting their leaching potential. Batch experiments were performed to evaluate the influence of soil properties on acetochlor retention. Soil samples were taken from horizons A, B, and C of three soil types representative of the Žitný ostrov area. The sorption and desorption isotherms were fitted to the Freundlich equation. The Freundlich sorption coefficient (K fs ) values ranged from 0.71 to 6.58 mg(1-1/n) .l (1/n) /kg and were correlated positively with soil organic carbon, humic and fulvic acid carbons, amorphous aluminum oxides, and negatively with soil pH. The Freundlich desorption coefficient (K fd ) values were greater than those for sorption, showing that not all acetochlor sorbed was desorbed after four washing steps. The percentage of acetochlor desorbed ranged from 7.80 to 54.5% with decreased desorption from soil horizons B and C. The higher sorption capacity of surficial soil horizons in the three soils may be a limiting factor for penetration of acetochlor through soil profiles into groundwater.

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Sorption behaviour of acetochlor, atrazine, carbendazim, diazinon, imidacloprid and isoproturon on Hungarian agricultural soil

Cited by 175 publications

References 8 publications

Sorption−Desorption Behavior of Atrazine on Soils Subjected to Different Organic Long-Term Amendments

Sorption−Desorption Behavior of Atrazine on Soils Subjected to Different Organic Long-Term Amendments

Aspect of the degradation and adsorption kinetics of atrazine and metolachlor in andisol soil

Retention characteristics of acetochlor in soils collected from different depths in relation to soil properties (Žitný ostrov area, SW Slovakia)

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