Abstract
THOSE herbicides which are composed of elements not intrinsically toxic are mostly broken down in the soil sufficiently rapidly for them to constitute no hazard to crops grown in the season following their use at selective dosages. Destruction by microorganisms is often assumed responsible and has, in the ocase of phenoxyacetic acids and some other compounds, been clearly proved1,2.
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References
Audus, L. J., Plant and Soil, 3, 170 (1951).
Audus, L. J., in Herbicides in the Soil, edit. by Woodford, E. K., and Sagar, D., 1 (Blackwell, Oxford, 1961).
Dewey, O. R., and Pfeiffer, R. K., Eleventh Intern. Symp. Crop Protection, 899 (Ghent, 1959).
Phillips, W. M., Weeds, 7, 284 (1959).
Mason, G. W., thesis, Univ. of California (March 1960).
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DEWEY, O., LYNDSAY, R. & HARTLEY, G. Biological Destruction of 2,3,6-Trichlorobenzoic Acid in Soil. Nature 195, 1232 (1962). https://doi.org/10.1038/1951232a0
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DOI: https://doi.org/10.1038/1951232a0
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