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Weed Control and Yield are Equal in Conventional, Reduced-, and No-Tillage Soybean (Glycine max) After 11 Years

Published online by Cambridge University Press:  12 June 2017

George Kapusta
Affiliation:
Dep. Plant Soil Sci., Southern Ill. Univ., Carbondale. IL 62901
Ronald F. Krausz
Affiliation:
Dep. Plant Soil Sci., Southern Ill. Univ., Carbondale. IL 62901

Abstract

Field experiments were conducted from 1979 to 1989 to determine the influence of conventional, reduced, and no-tillage systems and different herbicide combinations on weed species and population, weed control, and soybean injury, population, and yield. In no-till (NT) non-treated plots, there was an abrupt shift from horseweed as the dominant early spring emerging weed to gray goldenrod in 1985. Following its initial observation, gray goldenrod became the dominant species within 2 yr, with giant foxtail as the only other species observed in these plots. Giant foxtail was the dominant weed species from 1980 to 1989 in conventional till (CT) and reduced-till (RT) plots. There also was a shift in the frequency of occurrence and in density of several broadleaf weed species during the 11-yr study. Most herbicides provided excellent control of all weeds in all tillage systems, especially those that included POST herbicides. There was little difference between glyphosate and paraquat in controlling weeds present at the time of planting in NT. PRE herbicides caused 2 to 9% soybean injury with slightly greater injury occurring in CT and RT than in NT. The POST broadleaf herbicides did not significantly increase soybean injury. There were no differences in soybean population or yield among the herbicide treatments regardless of tillage. There also was no difference in soybean population or yield in NT compared with CT when averaged over all herbicide treatments.

Type
Research
Copyright
Copyright © 1993 Weed Science Society of America 

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References

Literature Cited

1. Anonymous. 1991. CTIC National Survey of Conservation Tillage Practices. Executive Summary, 14 p. Conservation Technology Information Center, W. Lafayette, IN.Google Scholar
2. Brown, H. J., Cruse, R. M., and Colvin, T. S. 1989. Tillage system effects on crop growth and production costs for a corn-soybean rotation. J. Prod. Agric. 2:273279.Google Scholar
3. Buhler, D. D. and Oplinger, E. S. 1990. Influence of tillage systems on annual weed densities and control in solid-seeded soybean (Glycine max). Weed Sci. 38:158165.Google Scholar
4. Cardina, J., Regnier, E., and Harrison, K. 1991. Long-term tillage effects on seed banks in three Ohio soils. Weed Sci. 39:186194.Google Scholar
5. Dick, W. A. and Van Doren, D. M. Jr. 1985. Continuous tillage and rotation combination effects on corn, soybean, and oat yields. Agron. J. 77:459465.Google Scholar
6. Erbach, D. C. and Lovely, W. G. 1975. Effect of plant residue on herbicide performance in no-tillage corn, Weed Sci. 23:512515.CrossRefGoogle Scholar
7. Gebhardt, M. R., Daniel, T. C., Schweizer, E. E., and Allmaras, R. R. 1985. Conservation tillage. Science 230:625630.CrossRefGoogle ScholarPubMed
8. Kapusta, G. 1979. Seedbed tillage and herbicide influence on soybean (Glycine max) weed control and yield. Weed Sci. 27:520526.Google Scholar
9. Lueschen, W. E. and Hoverstad, T. R. 1991. Imazethapyr for weed control in no-till soybean (Glycine max). Weed Technol. 5:845851.Google Scholar
10. Robinson, E. L., Langdale, G. W., and Stuedemann, J. A. 1984. Effect of three weed control regimes on no-till and tilled soybeans (Glycine max). Weed Sci. 32:1719.Google Scholar
11. Webber III, C. L., Kerr, H. D., and Gebhardt, M. R. 1987. Interrelations of tillage and weed control for soybean (Glycine max) production. Weed Sci. 35:830836.CrossRefGoogle Scholar
12. Wilhelm, W. W., Doran, J. W., and Power, J. F. 1986. Corn and soybean yield response to crop residue management under no-tillage production systems. Agron. J. 78:184189.Google Scholar
13. Wilson, J. S. and Worsham, A. D. 1988. Combinations of nonselective herbicides for difficult to control weeds in no-till corn, Zea mays, and soybeans, Glycine max . Weed Sci. 36:648652.CrossRefGoogle Scholar
14. Wrucke, M. A. and Arnold, W. E. 1985. Weed species distribution as influenced by tillage and herbicides. Weed Sci. 33:853856.CrossRefGoogle Scholar