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Indian Journal of Pure & Applied Biosciences (IJPAB)
Year : 2024, Volume : 12, Issue : 5
First page : (13) Last page : (19)
Article doi: : http://dx.doi.org/10.18782/2582-2845.9110

Mitigation Strategies for Ethalfluralin Contamination in Entisol Soils: An Environmental Perspective

Monika* and Anil Duhan
Department of Chemistry, CCS Haryana Agricultural University, Hisar-125004
*Corresponding Author E-mail: monuloura97@gmail.com
Received: 11.07.2024  |  Revised: 21.09.2024   |  Accepted: 9.10.2024 

 ABSTRACT

Weed control is an important part of crop production technologies, and within it, the chemical weed control method is more efficient & effective than conventional methods. Ethalfluralin is a widely used herbicide in agriculture. Its persistence in soil and potential for environmental contamination have made it a subject of concern among researchers and environmentalists. To undertake this objective, a laboratory experiment was planned to investigate the mitigation of ethalfluralin (35 EC) in Entisol soil. To carry out this study, surface soil samples (0-15 cm) were collected from the experimental farm of CCS HAU Hisar (Haryana) in 2021 and processed for initial soil physicochemical properties analysis. Ethalfluralin was applied to soil samples, and it was highly sorbed in the soil. A desorption study was carried out by using various extractants such as β-CD, SA, chitosan (LMW, MMW and HMW) and their combinations (β-CD-cLMW, β-CD-cMMWand β-CD-cHMW) to evaluate the efficiency of extractants. β-CD-cLMW biocomposite was most effective (approximately 2 times as compared to control) in removing the adsorbed ethalfluralin from the soil. Hydrophobic interactions and hydrogen bonding were found to be responsible for herbicides' greater affinity towards the sorption site of chitosan and β-CD complex. Ethalfluralin herbicide got highly sorbed in Entisol soil. So, it is necessary to mitigate sorbed herbicides by using compounds that do not cause pollution. β-CD-cLMW is the most effective biocomposite and can remove up to 80% of sorbed ethalfluralin.

Keywords: Entisol, biocomposite, ethalfluralin, desorption

Full Text : PDF; Journal doi : http://dx.doi.org/10.18782

Cite this article: Monika, & Duhan, A. (2024).  Mitigation Strategies for Ethalfluralin Contamination in Entisol Soils: An Environmental Perspective, Ind. J. Pure App. Biosci.12(5), 13-19. doi: http://dx.doi.org/10.18782/2582-2845.9110