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Acetanilide Activity and Dissipation as Influenced by Formulation and Wheat Stubble

Published online by Cambridge University Press:  12 June 2017

B. B. Petersen ,
P. J. Shea  and
G. A. Wicks
B. B. Petersen
Affiliation:
Dep. Agron., Univ. Nebraska, Lincoln, NE 68583
P. J. Shea
Affiliation:
Dep. Agron., Univ. Nebraska, Lincoln, NE 68583
G. A. Wicks
Affiliation:
Dep. Agron., Univ. Nebraska, Lincoln, NE 68583
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Abstract

Laboratory and field research was conducted to determine the influence of winter wheat (Triticum aestivum L.) stubble on weed control and the dissipation of emulsifiable concentrate formulations (EC) of metolachlor [2-chloro-N-(2-ethyl-6-methylphenyl)-N-(2-methoxy-1-methylethyl) acetamide], alachlor [2-chloro-N-(2,6-diethylphenyl)-N-(methoxymethyl)acetamide], and acetochlor [2-chloro-N-(ethoxymethyl)-N-(2-ethyl-6-methylphenyl)acetamide]; and microencapsulated formulations (ME) of alachlor and acetochlor. EC metolachlor provided better weed control than EC alachlor when applied 28 days before planting sorghum (Sorghum bicolor L.) and similar weed control when applied at 1 or 14 days before planting. This difference was attributed to more rapid EC alachlor dissipation. The order of relative herbicide persistence at 24 C and 33% (w/w) soil moisture in a silty clay loam was ME acetochlor = ME alachlor > EC metolachlor > EC acetochlor = EC alachlor. Acetanilide degradation was affected more by increasing temperature from 15 to 24 C than by increasing soil moisture from 15 to 33%. More herbicide was washed from overwintered than fresh straw in the first 1 cm of simulated rainfall. In the first simulated rainfall event, more herbicide was removed from straw that had been dry than wet at application, but the amount of herbicide remaining on dry and wet straw was similar after four events. Formulation generally did not affect herbicide wash-off.

Keywords

Degradationpersistenceecofallowno-tillmicroencapsulation
Type
Weed Control and Herbicide Technology
Information
Weed Science , Volume 36 , Issue 2 , March 1988 , pp. 243 - 249
Copyright
Copyright © 1988 by the Weed Science Society of America 

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References

Literature Cited

1. Baker, J. L., Laflen, J. M., and Hartwig, R. O. 1982. Effects of corn residue and herbicide placement on herbicide runoff losses. Trans. ASAE 25:340–343.Google Scholar
2. Banks, P. A. and Robinson, E. L. 1983. Activity of acetochlor, alachlor, and metolachlor as affected by straw. Proc. South. Weed Sci. Soc. 36:394.Google Scholar
3. Beestman, G. B. and Deming, J. M. 1974. Dissipation of acetanilide herbicides from soils. Agron. J. 66:308–311.Google Scholar
4. Blevins, R. L., Thomas, G. W., Smith, M. S., Frye, W. W., and Cornelius, P. L. 1983. Changes in soil properties after 10 years continuous no-tilled and conventionally tilled corn. Soil Tillage Res. 3:135–146.Google Scholar
5. Crutchfield, D. A., Wicks, G. A., and Burnside, O. C. 1985. Effect of winter wheat (Triticum aestivum) straw mulch level on weed control. Weed Sci. 34:110–114.Google Scholar
6. Doran, J.W. 1980. Soil microbial and biochemical changes associated with reduced tillage. Soil Sci. Soc. Am. J. 44:765–771.CrossRefGoogle Scholar
7. Doran, J. W. 1980. Microbial changes associated with residue management with reduced tillage. Soil Sci. Soc. Am. J. 44:518–524.Google Scholar
8. Doupnik, B. Jr. and Boosalis, M. G. 1980. Ecofallow—a reduced tillage system and plant disease. Plant Dis. 64:31–35.CrossRefGoogle Scholar
9. Erbach, D. C. and Lovely, W. G. 1975. Effect of plant residue on herbicide performance in no-till corn. Weed Sci. 23:512–515.Google Scholar
10. Gerber, H. R., Muller, G., and Ebner, L. 1974. CGA 24705. A new grasskiller herbicide. Proc. 12th Br. Weed Control Conf. 2:787–794.Google Scholar
11. Ghadiri, H., Shea, P. J., and Wicks, G. A. 1984. Interception and retention of atrazine by wheat (Triticum aestivum L.) stubble. Weed Sci. 32:24–27.Google Scholar
12. Hargrove, R. S. and Merkle, M. G. 1971. The loss of alachlor from soil. Weed Sci. 19:652–654.Google Scholar
13. Martin, C. D., Baker, J. L., Erbach, D. C., and Johnson, H. P. 1978. Washoff of herbicides applied to corn residue. Trans. ASAE 21:1164–1168.Google Scholar
14. Norstadt, F. A. and McCalla, T. M. 1968. Microbial populations in stubble-mulched soil. Soil Sci. 107:188–192.Google Scholar
15. Strek, H. J. and Weber, J. B. 1982. Adsorption, mobility, and activity comparisons between alachlor and metolachlor. Proc. South. Weed Sci. Soc. 35:332–338.Google Scholar
16. Strek, H. J. and Weber, J. B. 1981. Alachlor and metolachlor comparisons in conventional and reduced tillage systems. Proc. South. Weed Sci. Soc. 34:33–40.Google Scholar
17. Walker, A. and Brown, P. A. 1982. Effects of soil moisture on the activity and persistence of propachlor. Proc. Br. Crop Prot. Conf.-Weeds. Pages 171–177.Google Scholar
18. Weed Science Society of America. 1983. Herbicide Handbook of the WSSA. 5th ed. Pages 1–2, 12–15, 311–317.Google Scholar
19. Wicks, G. A. 1985. Early application of herbicides for no-till sorghum in wheat stubble. Weed Sci. 33:713–716.CrossRefGoogle Scholar
20. Williams, A. 1984. The controlled release of bioactive agents. Chemistry in Britain. 20:221–224.Google Scholar
21. Wu, T. L. and Fox, B. M. 1980. Rate of disappearance of atrazine and alachlor in cornfield soils. Proc. Northeast. Weed Sci. Soc. 34:147–154.Google Scholar
22. Zimdahl, R. L. and Clark, S. K. 1982. Degradation of three acetanilide herbicides in soil. Weed Sci. 30:545–548.CrossRefGoogle Scholar