Abstract
The potential for surface and groundwater contamination of soil applied herbicides is partly dependent on soil properties. Sorption and desorption of diuron and norflurazon were studied in seven soils representative of the southern citrus-belt of Florida using the batch-equilibrium technique. Sorption of herbicides was influenced by soil properties. Sorption coefficients (K d) ranged from 0.84 to 3.26 mL g−1 for diuron and 0.63 to 2.20 mL g−1 for norflurazon indicating weak to moderate binding of herbicides to soil. For norflurazon, K dwas significantly related to organic C content, soil pH, and cation exchange capacity. For diuron, absence of a significant relationship between K dand selected soil properties suggests that the soil properties other than those studied may play a role in determining sorption on these soils. Desorption studies showed that higher amounts of diuron and norflurazon was desorbed by water than by 0.5 M CaCl2. An inverse relationship was apparent between herbicides sorbed and that which was desorbed among the soils studied. The soil which exhibited higher sorption had lower desorption and the soil which exhibited lower sorption had higher desorption.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Alva, A. K. and Singh, M.: 1990a, Bull. Environ. Contain. Toxicol. 45, 365.
Alva, A. K. and Singh, M.: 1990b, Water, Air, and Soil pollution. 52, 175.
Alva, A. K. and Singh, M.: 1990c, J. Environ. Sci. Health. B25, 627.
Bailey, G. W. and White, J. L.: 1970, Res. Rev. 32, 29.
Carlisle, V. W., Sodek, F., Collins, M. E., Hammond, L. C., and Harris, W. G.: 1989, University of Florida, IFAS and U.S. Dept. Agric. Soil Conservation Service, Res. Report No. 89-1.
Chapman, H. D.: 1965, in Black, C. A. (ed.), Methods of Soil Analysis, Agron. Ser. No. 9: Am. Soc. Agron., Madison, WI. p. 891.
Chiou, C. T.: 1989, in Sawhney, B. L. and Brown, K. (eds.), Reactions and Movement of Organic Chemicals in Soils, Soil Sci. Soc. Am. Special Publication No. 22. Madison, WI. p. 1.
Cohen, S. Z., Eiden, C., and Lorber, M. N.: 1986, ACS Symp. Ser. No. 315:170. American Chemical Society, Washington, D.C.
Day, P. R.: 1965, in Black, C. A. (ed.), Methods of Soil Analysis, Agron. Ser. No. 9: Am. Soc. Agron., Madison, WI. p. 545.
Hassett, J. J., Banwart, W. L., Wood, S. G., and Means, J. C.: 1981, Soil Sci. Soc. Am. J. 45, 38.
Hassett, J. J. and Banwart, W. L.: 1989, in Sawhney, B. L. and Brown, K. (eds.), Reactions and Movement of Organic Chemicals in Soils, Soil Sci. Soc. Am. Special Publication No. 22. Madison, WI. p. 31.
Loux, M. A., Liebl, R. A., and Slife, F. W.: 1989, Weed Sci. 37, 440.
Singh, M., Castle, W. S., and Achhireddy, N. R.: 1985, Bull. Environ. Contam. Toxicol. 35, 279.
Walkey, A. and Black, I. A.: 1934, Soil Sci. 37, 29.
Author information
Authors and Affiliations
Additional information
Author for all correspondence. Florida Agricultural Experiment Station Journal Series No. R-01564.
Rights and permissions
About this article
Cite this article
Reddy, K.N., Singh, M. & Alva, A.K. Sorption and desorption of diuron and norflurazon in Florida citrus soils. Water Air Soil Pollut 64, 487–494 (1992). https://doi.org/10.1007/BF00483358
Received:
Revised:
Issue Date:
DOI: https://doi.org/10.1007/BF00483358