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Movement and Persistence of Picloram in Soil

Published online by Cambridge University Press:  12 June 2017

J. H. Hunter  and
E. H. Stobbe
J. H. Hunter
Affiliation:
Plant Sci. Dep., Univ. of Manitoba, Winnipeg, Manitoba
E. H. Stobbe
Affiliation:
Plant Sci. Dep., Univ. of Manitoba, Winnipeg, Manitoba
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Abstract

The movement and persistence of 4-amino-3,5,6-trichloropicolinic acid (picloram) in an Osborne clay soil was determined over a 4-year period. Picloram concentrations were determined with soybean (Glycine max (L.) Merr. ‘Altona’) as the bioassay plant. Application rates ranged from 35 to 700 g/ha. Movement and dissipation of picloram were neglible under low soil moisture conditions, but under high rainfall conditions picloram was leached into the 30 to 60-cm depth. A greater percent of the picloram was leached at the higher application rates. Dissipation increased with temperature (days over 27 C) and decreased with increasing depth in the soil profile. Two applications of picloram at 70 g/ha applied in 2 successive years showed no detectable accumulation, but accumulation occurred from two applications of 350 g/ha; 32% of the activity remained after approximately 2 years.

Type
Research Article
Information
Weed Science , Volume 20 , Issue 5 , September 1972 , pp. 486 - 489
Copyright
Copyright © Weed Science Society of America 

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References

Literature Cited

1. Bjerke, E. L., Kutschinski, A. H., and Ramsey, J. C. 1967. Determination of residues of 4-amino-3,5,6-trichloropicolinic acid in cereal grains by gas chromatography. J. Agr. Food Chem. 15:469–473.CrossRefGoogle Scholar
2. Goring, C. A., Youngson, C. R., and Hamaker, J. W. 1965. Tordon − disappearance from soils. Proc. Western Weed Contr. Conf. 20:39–41.Google Scholar
3. Grover, R. 1971. Adsorption of picloram by soil colloids and various other adsorbents. Weed Sci. 19:417–418.CrossRefGoogle Scholar
4. Hamaker, J. W., Goring, C. A., and Youngson, C. R. 1966. Sorption and leaching of 4-amino-3,5,6-trichloropicolinic acid in soils. p. 23–37. In Gould, R. F., Organic pesticides in the environment, Adv. Chem. Series. 60, Amer. Chem. Soc., Washington, D.C. CrossRefGoogle Scholar
5. Hamaker, J. W., Youngson, C. R., and Goring, C. A. I. 1967. Prediction of the persistence and activity of Tordon herbicide in soils under field conditions. Down Earth 23 (2): 30–36.Google Scholar
6. Herr, D. E., Stroube, E. W., and Ray, D. A. 1966. The movement and persistence of picloram in soil. Weeds 14: 248–250.CrossRefGoogle Scholar
7. Keys, C. H. and Friesen, H. A. 1968. Persistence of picloram activity in soil. Weed Sci. 16:341–344.CrossRefGoogle Scholar
8. Leasure, J. K. 1964. Bioassay methods for 4-amino-3,5,6-trichloropicolinic acid. Weeds 12:232–233.CrossRefGoogle Scholar
9. Nalewaja, J. D. 1970. Reaction of wheat to picloram. Weed Sci. 18:276–278.CrossRefGoogle Scholar
10. Richards, L. A. 1947. Pressure-membrane apparatus construction and use. Agr. Eng. 28:451–454, 460.Google Scholar
11. Scifres, C. J., Burnside, O. C., and McCarty, M. K. 1969. Movement and persistence of picloram in pasture soils of Nebraska. Weed Sci. 17:486–488.CrossRefGoogle Scholar
12. Wax, L. M., Knuth, L. A., and Slife, F. W. 1969. Response of soybeans to 2,4-D, dicamba, and picloram. Weed Sci. 17:388–393.CrossRefGoogle Scholar
13. Youngson, C. R., Goring, C. A., Meikle, R. W., Scott, H. H., and Griffith, J. D. 1967. Factors influencing the decomposition of Tordon herbicide in soils. Down Earth 23(2):3–11.Google Scholar