Persistence and transformation of flucetosulfuron herbicide in soil as affected by biotic and abiotic factors

Abstract

Effect of biotic and abiotic factors of soil on persistence and transformation of flucetosulfuron was studied in three soils from paddy growing zones of India. Herbicide residues in three soils dissipated with half-life ranging from 1.41 to 8.38 and 0.58 to 1.14 days under sterile and non-sterile conditions, respectively. Acidic pH and soil microbial activity contributed more toward the degradation of flucetosulfuron in soil. Under flooded soils, dissipation was bit slower than under field capacity moisture level. Five transformation products were identified with LC-MS/MS analysis. Ester hydrolysis and sulfonyl urea bridge cleavage seems to be the major transformation pathways for flucetosulfuron in soil.

Keywords:

• Flucetosulfuron
• persistence
• biotic and abiotic factors
• transformation products
• HPLC and MS analysis

Acknowledgments

The authors acknowledge the support in terms of SRF provided by Indian Council of Agricultural Research, New Delhi to the first author.

Data availability statement

Data will be made available if asked.

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No potential conflict of interest was reported by the author(s).

Funding

The author(s) reported there is no funding associated with the work featured in this article.

Correction Statement

This article has been republished with minor changes. These changes do not impact the academic content of the article.