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Mobility of four triazole fungicides in two Indian soils
Author(s) -
Singh Neera
Publication year - 2005
Publication title -
pest management science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.296
H-Index - 125
eISSN - 1526-4998
pISSN - 1526-498X
DOI - 10.1002/ps.973
Subject(s) - triadimefon , propiconazole , hexaconazole , fungicide , soil water , chemistry , sorption , triazole , agronomy , environmental chemistry , environmental science , biology , soil science , carbendazim , organic chemistry , adsorption
Abstract The sorption and downward mobility of four triazole fungicides, triadimefon, hexaconazole, penconazole and propiconazole, were studied in two Indian soils (New Delhi and Punjab). Punjab soil (organic carbon 0.4%) showed greater sorption capability for triazole fungicides than New Delhi soil (organic carbon 0.5%) and the order of sorption of triazoles in both soils was: penconazole > hexaconazole > propiconazole > triadimefon. Fungicides were more mobile in New Delhi soil columns than Punjab soil columns, and increasing the total water flux from 1 pore volume to 3 pore volumes further increased the transport to lower down in the column. Triadimefon showed maximum mobility while penconazole was the least mobile triazole fungicide. After percolating 3 pore volumes of water, triadimefon leached down to 25–30 cm depth in New Delhi soil and 15–20 cm in Punjab soil columns. Downward mobility of triazole fungicides was in order of their sorption results. Copyright © 2004 Society of Chemical Industry