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应用平衡法测定了４种浓度~（１４）Ｃ－苄嘧磺隆溶液在１０种土壤中的吸附与解吸性能。结果表明：土壤对苄嘧磺隆有很强的吸附性，且随供试土壤理化性质的差异其吸附性呈现明显变化，其中安徽红壤和江西红壤性水稻土吸附率为７３．２４％和５０．９５％；江苏黄潮土Ｂ和Ａ吸咐率分别为１０．７４％和２１．１２％。根据Ｆｒｕｅｎｄｌｉｃｈ方程计算：１０种土壤的吸附方程均呈良好线性关系；经计算机进行多元线性回归分析，吸附率与土壤理化性质呈显著相关，其中ｐＨ值与吸附率呈极显著负相关。吸附于土壤的苄嘧磺隆经水作用可被解吸，解吸率与其吸附率呈负相关．苄嘧磺隆在土壤中的强吸附性表明它在土壤中移动性小而难以淋脱。
The adsorption and desorption properties of four concentrations of ~ (14) C-bensulfuron-methyl solutions in 10 soils were determined by the equilibrium method. The results showed that the soil had strong adsorption to bensulfuron-methyl, and its adsorption showed obvious changes with the difference of physical and chemical properties of the soil tested. The adsorption rates of Anhui red soil and Jiangxi red soil were 73.24% and 50 .95% respectively. The adsorption rates of B and A in yellow soil in Jiangsu Province were 10.74% and 21.12% respectively. According to the Fruendlich equation, the adsorption equation of 10 soils showed a good linear relationship. The multivariate linear regression analysis showed that there was a significant negative correlation between the adsorption rate and the soil physicochemical properties. Bensulfuron-methyl adsorbed on the soil can be desorbed by water, and the desorption rate is negatively correlated with the adsorption rate. Strong adsorption of bensulfuron in the soil indicates that it has little mobility in the soil and is difficult to elute.