Effect of Soil Type, Moisture and Temperature on the Dissipation of Penoxsulam in Soil Under Laboratory Conditions.

A comprehensive study was conducted to evaluate the effect of concentration, moisture conditions, temperature and soil type on dissipation of penoxsulam in soil under laboratory conditions. Penoxsulam residues from the soil were extracted using matrix solid phase dispersion method and quantified using high performance liquid chromatography with UV detector at 230 nm. Dissipation followed first order kinetics and penoxsulam dissipated within 60 days in all the treatments with half-life varying from 12.60 to 30.08 days. Soil type greatly influenced the dissipation of penoxsulam and it was found to be slower in clay loam followed by loam, sandy loam and loamy sand soil. However, irrespective of soil type, dissipation of penoxsulam increased with increase in moisture content of soil and temperature. [ABSTRACT FROM AUTHOR]

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