Soumyadeep Mukhopadhyay
Degradation and residue dynamics of fluazinam in diverse indian soil types and water pH conditions: a comprehensive study using kinetic models
Mukhopadhyay, Soumyadeep; Mandal, Jajati; Kanrar, Bappaditya; Chatterjee, Debasish; Bhattacharyya, Anajan; Majumder, Santanu
Authors
Dr Jajati Mandal J.Mandal2@salford.ac.uk
University Fellow
Bappaditya Kanrar
Debasish Chatterjee
Anajan Bhattacharyya
Santanu Majumder
Abstract
Fluazinam a promising fungicide, is not yet registered in India. Consequently it is important to study the dissipation of its specific formulation in Indian soil and water. This study focuses on the degradation and residue dynamics of Fluazinam (40% SC) in different soil types (alluvial, lateritic, coastal saline and black) and water pH (4.0, 7.0, 9.2). Adsorption kinetic models suggested that the half-life period (days) varies among soils following the order lateritic (Jhargram), 54.07 > alluvial (Mohanpur), 45.10 > coastal saline (Canning), 28.33 > black (Pune) 26.18. These differences are attributed to soil pH and organic carbon (OC) content, where higher pH levels reduce pesticide adsorption, leading to quicker dissipation, while higher organic carbon content provides more binding sites, slowing down the process. The first order kinetics explained the dissipation better compared to second order model across all soil types. The study also found that the half-life of was lowest at pH 9.2, as compared to pH 7.0, and very high stability at pH 4.0. Additionally, the study introduces an interactive R-based tool for analysing dissipation kinetics and half-life of different pesticides offering a valuable resource for researchers and stakeholders.
Citation
Mukhopadhyay, S., Mandal, J., Kanrar, B., Chatterjee, D., Bhattacharyya, A., & Majumder, S. (in press). Degradation and residue dynamics of fluazinam in diverse indian soil types and water pH conditions: a comprehensive study using kinetic models. Frontiers in Environmental Science, 12, 1394847. https://doi.org/10.3389/fenvs.2024.1394847
Journal Article Type | Article |
---|---|
Acceptance Date | Jun 11, 2024 |
Online Publication Date | Jun 27, 2024 |
Deposit Date | Jun 19, 2024 |
Publicly Available Date | Jun 27, 2024 |
Journal | Frontiers in Environmental Science |
Publisher | Frontiers Media |
Peer Reviewed | Peer Reviewed |
Volume | 12 |
Pages | 1394847 |
DOI | https://doi.org/10.3389/fenvs.2024.1394847 |
Keywords | dissipation kinetics, pesticides, soil, fluazinam, water |
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Publisher Licence URL
http://creativecommons.org/licenses/by/4.0/
Accepted Version
(1.1 Mb)
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Publisher Licence URL
http://creativecommons.org/licenses/by/4.0/
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