[Adsorption of bensulfuron-methyl in soils].
Adsorption of bensulfuron-methyl in eight different soils was studied using the batch equilibration technique. The results showed that soils had strong adsorption of bensulfuron-methyl, which, however, varied with the different properties of the soil tested. The isotherm data were fitted to the Frenundlich equation. The Kf values increased with increasing organic matter and clay content of the soils and decreased with increasing pH. The correlative coefficient between Kf values and organic matter and clay content and pH were 0.7393*, 0.7751*, 0.7068*, p < 0.05, respectively. The free energy of sorption (delta G) ranged from 11.43 to 13.38 kJ/mol indicates the spontaneity of the given sorption process of bensulfuron-methyl in soils.
Si
Youbin
Y
College of Environmental Science & Technology, Anhui Agricultural University, Hefei 230036, China.
Zhou
Jing
J
Wang
Xingxiang
X
Zhou
Dongmei
D
D006540:Herbicides / Q000737:chemistry*; D006863:Hydrogen-Ion Concentration; D012987:Soil / Q000032:analysis*; D013453:Sulfonylurea Compounds / Q000737:chemistry*; D013816:Thermodynamics
D006540:Herbicides; D012987:Soil; D013453:Sulfonylurea Compounds; C071475:methyl bensulfuron