Effects of Sewage Sludge on Phenoxy Herbicide Adsorption and Degradation in Soils1
- G. A. O'Connor,
- B. C. Fairbanks and
- E. A. Doyle2
The adsorption and degradation of two herbicides, 2,4,dichlorophenoxyacetic acid (2,4-D) and 2,4,5-trichlorophenoxyacetic acid (2,4,5-T), were examined in three soils either freshly amended or preconditioned for 2 months with sewage sludge. Sludge additions generally enhanced herbicide degradation, but had no effect on 2,4-D degradation in a soil with a history of 2,4-D applications. Fresh sludge additions had little effect on herbicide adsorption by soils, while preconditioning the sludge-soil mixtures generally increased herbicide adsorption.Please view the pdf by using the Full Text (PDF) link under 'View' to the left.
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