K. Ramanand, M. Sharmila, D. Panda
Jun 1, 1988
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0
Influential Citations
7
Citations
Journal
Journal of Environmental Science and Health Part B-pesticides Food Contaminants and Agricultural Wastes
Abstract
Abstract In a field study, a granular formulation of carbofuran (2,3‐dihydro‐2,2‐dimethyl‐7‐benzofuranyi N‐methylcarbamate) was broadcast to the standing water of a flooded field under puddled and nonpuddled conditions. The residues of carbofuran and the metabolite 7‐phenol (2,3‐dihydro‐2,2‐dimethyl‐7‐benzofuranol) in flood water and in leachates at 15 cm and 30 cm depths were analysed. In nonpuddled soil, substantial amounts of carbofuran and 7‐phenol were recovered from the leachates at both 15 cm and 30 cm depths. But, in puddled field mobility of carbofuran and 7‐phenol was restricted to top 15 cm and almost negligible at 30 cm depth. The percolation rate in puddled and nonpuddled field was 0.45 cm and 1.35 cm.day‐1, respectively. Leaching of carbofuran was retarded under puddled conditions evidently due to slow percolation rate.