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   Adsorption and leaching studies of molinate, carbofuran and propiconazole in Muda agricultural soils  
   
نویسنده Khairatul A. M. ,Ngan C. K. ,Ismail B. S.
منبع journal of tropical agriculture and food science - 2013 - دوره : 41 - شماره : 1 - صفحه:127 -136
چکیده    The adsorption and leaching studies of molinate, carbofuran and propiconazole on silty clay soil were conducted under laboratory conditions. propiconazole (kf value = 52.94 litres/kg) was the most strongly adsorbed pesticide by silty clay soil as compared to molinate (kf value = 10.22 litres/kg) and carbofuran (kf value = 6.59 litres/kg). the 1/n values of molinate (0.99) showed that the ability of molinate to be adsorbed into silty clay soil decreased when the concentration of molinate in solution increased. carbofuran and propiconazole tend to be adsorbed more into silty clay soil when their concentrations in solution increased. soil columns with a length of 60 cm were erected and the pesticides were leached with distilled water for 7 days (molinate = 1.03 kg/ha, carbofuran = 0.42 kg/ha and propiconazole = 0.042 kg/ha). no residues of molinate (<1.0 ng ml), carbofuran (<3.2 ng/ml) and propiconazole (<0.1 ng/ml) were detected in the leachate
کلیدواژه pesticides ,solubility ,pollution ,ground water contamination
آدرس Malaysian Agricultural Research and Development Institute (MARDI), Headquarters, Strategic Resources Research Centre, Malaysia, Malaysian Agricultural Research and Development Institute (MARDI), Headquarters, Strategic Resources Research Centre, Malaysia, Universiti Kebangsaan Malaysia, Faculty of Science and Technology, School of Environmental Sciences and Natural Resources, Malaysia
 
     
   
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