Leaching and Movement of Carbofuran in Soils.

Abstract

Carbofuran movement in soils was studied by employing soil TLC technique with natural soil and alwin the soil in which organic matter was destroyed. The mobility, as Rf values, of 16 sails (Red, black, alluvial and laterite) showed that the movement in red, alluvial and black soils was rapid while in laterite soil it was slow. A striking increase in the mobility of carbofuran was recorded in soils in which the organic matter was oxidised. Carbofuran teaching was high in red, alluvial and black soils and the effluents 55, 41.50 and 36.5 per cent of the added carbofuran, respectively. In laterite soils a major portion of the added toxicant was retained in the soil of the first column section and the effluents did not contain any residues. Both the soil TLC and leaching studies revealed that there was a general trend towards reduced mobility of carbofuran with incressed organic matter content of coils. Based on the Rf value recorded in red, block and alluvial soils with organic matter content below 1 per cent, carbofuran was classified under class IV and designated as "mobile" insecticide while in respect of laterite soils with 1.50 to 4,29 per cent opranic matter its mobility was moderate (class III).

DOI

https://doi.org/10.29321/MAJ.10.A02747

Pages

501 - 506

Creative Commons

Copyright

© The Author(s), 2025. Published by Madras Agricultural Students' Union in Madras Agricultural Journal (MAJ). This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium, provided the original work is properly cited by the user.

Keywords