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Main Title Rate of Soil Reduction as Affected by Levels of Methyl Parathion and 2, 4,-D (Journal Version).
Author Reddy, K. S. ; Gambrell, R. P. ;
CORP Author Louisiana State Univ., Baton Rouge. Center for Wetland Resources.;Environmental Research Lab., Athens, GA.
Publisher c1985
Year Published 1985
Report Number EPA-R-807018; EPA/600/J-85/532;
Stock Number PB89-134597
Additional Subjects Land pollution ; Soil microbiology ; Insecticides ; Herbicides ; Pesticides ; Flooding ; pH ; Reduction(Chemistry) ; Phosphorus organic compounds ; Chlorine organic compounds ; Reprints ; Methyl parathion ; D 2-4 herbicide ; Phosphorothioic acid/(dimethyl-ester)-(nitrophenyl ester) ; Acetic acid/dichlorophenoxy
Library Call Number Additional Info Location Last
NTIS  PB89-134597 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 26p
A simple technique was demonstrated for determining the potential for synthetic organics to stress microbial populations. Oxidized Crowly and Cecil soil materials were amended with varying concentrations of 2,4-D and methyl parathion, flooded, and then analyzed for changes in pH, redox potential, and levels of soluble plus exchangeable Fe, Mn, and Zn, all of which may be directly or indirectly influenced by the activity of soil microorganisms. At the concentrations tested (up to 75 ppm), there was little effect of 2,4-D, but methyl parathion apparently did affect microbial activity contributing to changes in the measured soil properties upon flooding. This approach may be a useful technique for screening various compounds for their potential to stress microbial activity that, for many researchers, would be easier than direct observations of microbial parameters such as population numbers and classifications, and enzyme levels. (Copyright (c) 1985 by Marcel Dekka, Inc.)