Hostname: page-component-848d4c4894-ttngx Total loading time: 0 Render date: 2024-06-11T02:55:36.638Z Has data issue: false hasContentIssue false
  • English
  • Français

Soil Degradation of Metazachlor in Agronomic and Vegetable Crop Fields

Published online by Cambridge University Press:  12 June 2017

Jean Rouchaud ,
Marc Metsue ,
Michel Van Himme ,
Robert Bulcke ,
Joel Gillet  and
Luc Vanparys
Jean Rouchaud
Affiliation:
Lab. Phytopathol., Catholic Univ. Louvain, 1348 Louvain-1a-Neuve
Marc Metsue
Affiliation:
Lab. Phytopathol., Catholic Univ. Louvain, 1348 Louvain-1a-Neuve
Michel Van Himme
Affiliation:
Weed Res. Group, State Univ. Gent, 9000 Gent
Robert Bulcke
Affiliation:
Weed Res. Group, State Univ. Gent, 9000 Gent
Joel Gillet
Affiliation:
State School Hortic., 5800 Gembloux
Luc Vanparys
Affiliation:
Agric. Hortic. Res. Stat., 8810 Rumbeke
Get access Rights & Permissions [Opens in a new window]

Abstract

Metazachlor degradation in soil was studied in fields of spring barley, turnips, brussels sprouts, and leeks. Metazachlor in soil was transformed into 2-hydroxy-N-(2,6-dimethylphenyl)-N-(1H-pyrazol-1-yl methyl)-acetamide (compound 2), 2-chloro-N-(2,6-dimethylphenyl)-acetamide (compound 3), and 4,4′-methylenebis-(2,6-dimethylbenzenamine) (compound 4). Soil concentrations of compound 4 were always lower than 0.1 ppm. The half-life of metazachlor in the 0- to 10-cm soil layer was 1 to 3 mo. Metazachlor and compounds 2, 3, and 4 were not detected in the 10- to 20- and 20- to 30-cm soil layers. Metazachlor and metabolites (compounds) 2, 3, and 4 were not detected in barley grain or in the edible part of the vegetables. The sensitivity limit for these compounds was 0.02 ppm.

Keywords

Metazachlor, 2-chloro-N-(2,6-dimethylphenyl)-N-(1H-pyrazol-1-ylmethyl)-acetamidespring barley, Hordeum vulgare L., subsp. hexastichon ‘Apex’turnip, Brassica napus L., subsp. napus ‘Leielander’brussels sprouts, Brassica oleracea L., subsp. Gemmifera, ‘Acropolis’leeks, Allium porum L., subsp. ‘Alberta’lettuce, Lactuca sativa L., ‘Hilde’cabbage, Brassica oleracea L., subsp. Bullata, ‘Savoy King’Persistencesoil residuesleaching
Type
Soil, Air, and Water
Information
Weed Science , Volume 40 , Issue 1 , March 1992 , pp. 149 - 154
Copyright
Copyright © 1992 by the Weed Science Society of America 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Literature Cited

1. Allen, R. and Walker, A. 1987. The influence of soil properties on the rates of degradation of metamitron, metazachlor and metribuzin. Pestic. Sci. 18:95–111.Google Scholar
2. Allen, R. and Walker, A. 1988. Effects of microbial inhibitors on the degradation rates of metamitron, metazachlor and metribuzin in soil. Pestic. Sci. 22:297–305.Google Scholar
3. Frank, R., Sirons, G. J., Paik, N. J., and Valk, M. 1977. Fate of propachlor applied to onions and organic soils. Can. J. Plant Sci. 57:473–477.Google Scholar
4. Fuhremann, T. W. and Lichtenstein, E. P. 1980. A comparative study of the persistence, movement, and metabolism of six carbon-14 insecticides in soils and plants. J. Agric. Food Chem. 28:446–452.Google Scholar
5. Hargrove, R. S. and Merkle, M. G. 1971. Loss of alachlor from soil. Weed Sci. 19:652–654.Google Scholar
6. Kimmel, E. C., Casida, J. E., and Ruzo, L. O. 1986. Formamidine insecticides and chloroacetanilide herbicides: disubstituted anilines and nitrosobenzenes as mammalian metabolites and bacterial mutagens. J. Agric. Food Chem. 34:157–161.CrossRefGoogle Scholar
7. Krause, A., Hancock, W. G., Minard, R. D., Freyer, A. J., Honeycutt, R. C., LeBaron, H. M., Paulson, D. L., Liu, S. Y., and Bollag, J. M. 1985. Microbial transformation of the herbicide metolachlor by a soil Actinomycete. J. Agric. Food Chem. 33:584–589.Google Scholar
8. Nilsson, H. 1985. Herbicide persistence and mobility in arable soil. Investigations in 1982–1983. Weeds Weed Control 26th(1):217–224.Google Scholar
9. Novick, N. J., Mukherjee, R., and Alexander, M. 1986. Metabolism of alachlor and propachlor in suspensions of pretreated soils and in samples from ground water aquifers. J. Agric. Food Chem. 34:721–725.Google Scholar
10. Rouchaud, J., Metsue, M., Gustin, F., Moulard, C., and Herin, M. 1989. Acid catalyzed heterolysis of a pyrazol α-chloroacetanilide derivative with alkyl-amidonitrogen fission. Bull. Soc. Chim. Belg. 98:319–325.CrossRefGoogle Scholar
11. Talekar, N. S., Sun, L. T., Lee, E. M., and Chen, J. S. 1977. Persistence of some insecticides in subtropical soil. J. Agric. Food Chem. 25:348–352.Google Scholar
12. Tiedje, J. M. and Hagedorn, M. L. 1975. Degradation of alachlor by a soil fungus, Chaetomium Globosum. J. Agric. Food Chem. 23:77–81.Google Scholar
13. Van Himme, M. and Bulcke, R. 1988. Results obtained in 1988 by the Research Center for Weed Control, IWONL, State Univ. Gent, Belgium, 52:144–154.Google Scholar
14. Walker, A. and Brown, P. A. 1985. The relative persistence in soil of five acetanilide herbicides. Bull. Environ. Contam. Toxicol. 34:143–149.CrossRefGoogle ScholarPubMed
15. Yaron, B., Heuer, B., and Birk, Y. 1974. Kinetics of azinphosmethyl losses in the soil environment. J. Agric. Food Chem. 22:439–441.Google Scholar