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Influence of Soil Amendments and their Conjoint Application with Microbial Consortium in Enhancing Endosulfan Degradation and Reducing its Leaching to Groundwater

Archana Suyal1, Anjana Srivastava1,*, Anita Sharma2 and P.C. Srivastava3

1Department of Chemistry, College of Basic Sciences and Humanities, G.B. Pant University of Agriculture and Technology, Pantnagar-263 145, India

2Department of Microbiology, College of Basic Sciences and Humanities, G.B. Pant University of Agriculture and Technology, Pantnagar-263 145, India

3Department of Soil Science, College of Agriculture, G.B. Pant University of Agriculture and Technology, Pantnagar-263 145, India

*Corresponding author: E-mail: anj612003@yahoo.com

Abstract

A laboratory experiment using soil columns was conducted to study the effect of soil amendments (e.g., farmyard manure, press mud compost, cereal straw, gypsum and fresh cow dung) and their conjoint use with microbial consortium (Bacillus sp. GS20 plus other bacterial isolates) in degradation of a- and b-endosulfan and reducing its leaching to underground water. Among all the five soil amendments used in the study, application of cereal straw and gypsum @ 5 t ha-1 separately decreased the maximum leaching of endosulfan, whereas in conjoint application with microbial consortium, cereal straw @ 5 t ha-1 was more effective in reducing leaching of endosulfan.

Keywords

Soil columns, Endosulfan, Amendments, Leaching, Microbial consortium.

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