Department of Applied Chemistry, Z.H. College of Engg. & Tech. Aligarh Muslim University, Aligarh-202 002, India.
Online published on 3 November, 2011.
Adsorption of malathion on two sandy loam soils has been studied at 12°, 25°, and ±1°C. The adsorption was found to be dependent on temperature, organic matter and clay contents of the soil. The Freundlich constants have been calculated. Persistence of malathion was studied in the above sandy loam soils fortified at 190 and 380 μg/g level, moistened at field capacity and kept at room temperature (25 ±S°C). The persistence of malathion was more in Sasni block soil than in AMU farm soil. The half-life was found to be 24.3 days in AMU farm soil and 19.5–24.8 days in Sasni block soil.
Persistence, adsorption, malathion, sandy loam soil
