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Soil Degradation of Three Dinitroanilines

Published online by Cambridge University Press:  12 June 2017

R.L. Zimdahl  and
S.M. Gwynn
R.L. Zimdahl
Affiliation:
Dep. Bot. and Plant Pathol., Colorado State Univ., Fort Collins, CO 80523
S.M. Gwynn
Affiliation:
Dep. Bot. and Plant Pathol., Colorado State Univ., Fort Collins, CO 80523
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Abstract

These studies were conducted in the laboratory on two soils at two temperatures to define the rate of degradation and the associated rate law for trifluralin (α,α,α-trifluoro-2,6-dinitro-N,N-dipropyl-p-toluidine), benefin (N-butyl-N-ethyl-α,α,α-trifluoro-2,6-dinitro-p-toluidine), and 2,6-dinitro-N-(3-pentyl)-α,α,α-trifluoro-p-toluidine (hereafter referred to as Unnamed). Rate of degradation was directly correlated with temperature and moisture content. First order kinetics adequately described the rate of degradation at 15 C, but the simple first order assumption was not sufficient to describe degradation at 30 C. The implication of our interpretation is that at 30 C two rate processes may operate in the soil degradation of these three dinitroaniline herbicides. The data show an initial rapid first order rate of degradation with a subsequent change to a slower first order process. First half lives ranged from 0.4 to 1.8 months at 30 C and were consistently lower in a loam than in a sandy loam soil.

Type
Research Article
Information
Weed Science , Volume 25 , Issue 3 , May 1977 , pp. 247 - 251
Copyright
Copyright © 1977 by the Weed Science Society of America 

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References

Literature Cited

1. Carter, G.E. and Camper, N.D. 1975. Soil enrichment studies with trifluralin. Weed Sci. 23: 71–74.CrossRefGoogle Scholar
2. Golab, T. and Amundson, M.E. 1974. Degradation of trifluralin, oryzalin and isopropalin in soil. Abst. #119. 3rd Int. Cong. of Pestic Chem (Helsinki).Google Scholar
3. Gingerich, L.L. and Zimdahl, R.L. 1975. Soil persistence of isopropalin and oryzalin. Weed Sci. 24: 431–434.CrossRefGoogle Scholar
4. Hamaker, J.W. 1972. Decomposition: quantitative aspects, pages 252–334 in Goring, C.A.I. and Hamaker, J.W., Organic chemicals in the soil environment, Vol. I, Marcel Dekker, Inc. Google Scholar
5. Hamdi, Y.A. and Tewfik, M.S. 1969. Effect of the herbicide trifluralin on nitrogen fixation in Rhizobium and Azotobacter and nitrification. Acta Microbiol. Pol. Ser. B. 1: 53–58.Google ScholarPubMed
6. Helling, C.S. 1976. Dinitroaniline herbicides in soils. J. Environ. Qual. 5: 1–15.CrossRefGoogle Scholar
7. Hollist, R.L. and Foy, C.L. 1971. Trifluralin interactions with soil constituents. Weed Sci. 19: 11–16.Google Scholar
8. Hyzak, D.L. and Zimdahl, R.L. 1974. Rate of degradation of metribuzin and two analogs in soil. Weed Sci. 22:75–79.Google Scholar
9. Laanio, T.L., Kearney, P.C., and Kaufmann, D.D. 1973. Microbial metabolism of dinitramine. Pestic. Biochem. Physiol. 3: 271–277.Google Scholar
10. Meikle, R.W., Youngson, C.R., Hedlund, R.T., Goring, C.A.I., Hamaker, J.W., and Addington, W.W., 1973. Measurement and prediction of picloram disappearance rates from soil. Weed Sci. 21:549–555.CrossRefGoogle Scholar
11. Miller, J.H., Keeley, P.E., Carter, C.H., and Thullen, R.J. 1975. Soil persistence of trifluralin, benefin, and nitralin. Weed Sci. 23:211–214.Google Scholar
12. Parka, S.J. and Tepe, J.B. 1969. The disappearance of trifluralin from field soils. Weed Sci. 17:119–122.CrossRefGoogle Scholar
13. Probst, G.W. and Tepe, J.B. 1969. Trifluralin and related compounds, pages 255–282 in Degradation of herbicides. Kearney, P.C. and Kaufmann, D.D., Ed. Marcel Dekker Inc., N.Y. Google Scholar
14. Probst, G.W., Golab, T., Herberg, R.J., Holzer, F.J., Parka, S.J., van der Schans, C., and Tepe, J.B. 1967. Fate of trifluralin in soils and plants. J. Agric. Food Chem. 15: 592–599.Google Scholar
15. Rahn, P.R. and Zimdahl, R.L. 1972. Soil degradation of two phenyl pyridazinones. Weed Sci. 21:314–317.CrossRefGoogle Scholar
16. Savage, K.E. 1973. Nitralin and trifluralin persistence in soil. Weed Sci. 21:285–288.CrossRefGoogle Scholar
17. Tepe, J.B., and Scroggs, R.E. 1967. Trifluralin. Chap. 37, in Analytical methods of pesticides, plant growth regulators and food additives. Vol. V. Ed. Zweig, G. Academic Press, N.Y. Google Scholar
18. Zimdahl, R.L., Freed, V.H., Montgomery, M.L., and Furtick, W.R. 1970. The degradation of triazine and uracil herbicides in soil. Weed Res. 10:18–26.Google Scholar