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On-Farm Evaluation of Mechanical and Chemical Weed Management Practices in Corn (Zea mays)

Published online by Cambridge University Press:  12 June 2017

Robert G. Hartzler
Affiliation:
Dep. Agron., Iowa State Univ., Ames, IA 50011
Brad D. Van Kooten
Affiliation:
Dep. Agron., Iowa State Univ., Ames, IA 50011
David E. Stoltenberg
Affiliation:
Dep. Agron., Iowa State Univ., Ames, IA 50011
Elaine M. Hall
Affiliation:
Dep. Agron., Iowa State Univ., Ames, IA 50011
Richard S. Fawcett
Affiliation:
Dep. Agron., Iowa State Univ., Ames, IA 50011

Abstract

Combinations of rotary hoeing, cultivation, and band- or broadcast-applied herbicides were compared for weed management in corn at 64 locations in Iowa from 1987 to 1991. Cultivation alone resulted in denser weed populations than herbicide treatments at 41% of the locations; however, corn yields were reduced at only 22% of the locations when weeds were controlled mechanically rather than with herbicides. Compared with broadcast applications, herbicides applied in a band resulted in increased weed populations at 8% of the locations; however, corn yields were reduced at only 1% of the locations.

Type
Education/Extension
Copyright
Copyright © 1994 by the Weed Science Society of America 

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References

Literature Cited

1. Benson, G. O. 1984. Replanting or Late Planting Decisions with Corn and Soybeans. Iowa State Univ. Ext. Bull. Pm-1155.Google Scholar
2. Doll, J. and Mulder, T. 1991. Reduced herbicide rates—the Wisconsin experience. Proc. Crop Prod. Prot. Conf., Iowa State Univ., Ames, IA. p. 3538.Google Scholar
3. Duffy, M. D. and Thompson, L. 1991. The extent and nature of Iowa crop production practices, 1989. Iowa State Univ. Ext. Bull. Fm-1839.Google Scholar
4. Fernholz, C. 1990. How I control weeds without herbicides. The New Farm. March/April: 1720.Google Scholar
5. Gunsolus, J. L. 1990. Mechanical and cultural weed control in corn and soybeans. Am. J. Alt. Agric. 3:114119.CrossRefGoogle Scholar
6. Hanna, M. H. 1991. Band Sprayer Calibration. Iowa State Univ. Ext Bull Pm-1439.Google Scholar
7. Hartzler, R. G. and Hanna, M. H. 1990. Banding herbicides for row crop weed management Iowa State Univ. Ext. Bull. Pm-1393.Google Scholar
8. Hartzler, R. G. and Wintersteen, W. K. 1991. Pesticides used in Iowa crop production in 1990. Iowa State Univ. Ext Bull. Pm-1441.Google Scholar
9. Lovely, W. G., Weber, C. R., and Staniforth, D. W. 1958. Effectiveness of the rotary hoe for weed control in soybeans. Agron. J. 50:621625.CrossRefGoogle Scholar
10. Moomaw, R. S. and Robinson, L. R. 1973. Broadcast or banded atrazine plus propachlor with tillage variables in corn. Weed Sci. 21: 106109.CrossRefGoogle Scholar
11. Padgitt, S. C. 1988. Farm practices and attitudes toward groundwater policies: a statewide survey. Iowa State Univ. Ext. Bull. IFM-3.Google Scholar
12. Pike, D. R., McGlamery, M. D., and Knake, E. L. 1991. A case study of herbicide use. Weed Technol. 5:639646.CrossRefGoogle Scholar
13. Schweizer, E. E. and Zimdahl, R. L. 1984. Weed seed decline in irrigated soil after six years of continuous corn (Zea mays) and herbicides. Weed Sci. 32:7683.CrossRefGoogle Scholar