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Early Season Herbicide Applications for Weed Control in Stale Seedbed Soybean (Glycine max)

Published online by Cambridge University Press:  12 June 2017

Stacey A. Bruff
Affiliation:
Dep. Plant Pathol. Weed Sci., Miss. State Univ., Mississippi State, MS 39762
David R. Shaw
Affiliation:
Dep. Plant Pathol. Weed Sci., Miss. State Univ., Mississippi State, MS 39762

Abstract

Field experiments were conducted in 1989 and 1990 on silty clay and sandy loam soils to evaluate weed control and soybean yield with early-April preplant incorporation of selective herbicides in stale seedbed soybean followed by non-selective weed control measures at planting. Metribuzin applied PPI early followed by chlorimuron POST coupled with either glyphosate or paraquat PRE controlled sicklepod, pitted morningglory, and hemp sesbania to the same extent of that treatment applied PPI at planting. All stale seedbed treatments with POST applications and glyphosate, paraquat, or tillage at planting controlled pitted morningglory over 70%. However, imazaquin or metribuzin applied PPI early without a POST treatment controlled sicklepod and pitted morningglory poorly. Frequently, applying PPI herbicides at planting increased control compared with early PPI applications, but this was overcome by POST treatments. Early stale seedbed applications of metribuzin did not result in more than 60% control of hemp sesbania, whereas metribuzin applied PPI at planting controlled over 85%. However, metribuzin plus chlorimuron controlled hemp sesbania at least 74%, regardless of application timing or tillage method, whereas no imazaquin treatment achieved over 65% control. All stale seedbed herbicide treatments increased soybean yield compared with the untreated stale seedbed check. Selective herbicide treatments with either non-selective herbicide in a stale seedbed program resulted in equivalent yield to PPI at planting treatments most often, except with metribuzin.

Type
Research
Copyright
Copyright © 1990 by the Weed Science Society of America 

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References

Literature Cited

1. Bridges, D. C., and Walker, R. H. 1985. Influence of weed management and cropping systems on sicklepod (Cassia obtusifolia) seed in the soil. Weed Sci. 33:800804.CrossRefGoogle Scholar
2. Brown, S. M., Chandler, J. M., and Morrison, J. E. Jr. 1987. Weed control in a conservation tillage rotation in the Texas Blacklands. Weed Sci. 35:695699.Google Scholar
3. Buhler, D. D., and Werling, V. L. 1989. Weed control from imazaquin and metolachlor in no-till soybeans (Glycine max). Weed Sci. 37:392399.Google Scholar
4. Elmore, C. D., and Heatherly, L. G. 1988. Planting system and weed control effects on soybean grown on clay soil. Agron. J. 80:818821.Google Scholar
5. Hackett, N. 1990. Imazaquin behavior in the soil. American Cyanamid Co. Pub. PE 12121. American Cyanamid Co., Wayne, NJ.Google Scholar
6. Heatherly, L. G., and Elmore, C. D. 1983. Response of soybeans (Glycine max) to planting in untilled, weedy seedbed on clay soil. Weed Sci. 31:9399.Google Scholar
7. Heatherly, L. G., Musick, R. A., and Hamill, J. G. 1986. Economic analysis of stale seedbed concept of soybean production on clay soil. Miss. Agric. For. Exp. Stn. Info. Bull. 944, 13 p.Google Scholar
8. Kapusta, G. 1979. Seedbed tillage and herbicide influence on soybean (Glycine max) weed control and yield. Weed Sci. 27:520526.Google Scholar
9. Mills, J. A., and Witt, W. W. 1989. Effect of tillage systems on the efficacy and phytotoxicity of imazaquin and imazethpyr in soybean (Glycine max). Weed Sci. 37:233238.Google Scholar
10. Ogg, A. G. Jr., and Dawson, J. H. 1984. Time of emergence of eight weed species. Weed Sci. 32:327335.Google Scholar
11. Peter, C. J., and Weber, J. B. 1985. Adsorption, mobility, and efficacy of metribuzin as influenced by soil properties. Weed Sci. 33:868873.Google Scholar
12. 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
13. Shaw, D. R., Wixson, M. B., and Smith, C. A. 1991. Effect of imazaquin and chlorimuron plus metribuzin on sicklepod (Cassia obtusifolia) interference in soybean (Glycine max). Weed Technol. 5:206210.Google Scholar
14. Staniforth, D. W., and Wiese, A. F. 1985. Chapter 2: Weed biology and its relationship to weed control in limited-tillage systems. p. 1523 in Wiese, A. F., ed. Weed Control in Limited-Tillage Systems. Weed Sci. Soc. Am. Monograph Series, Number 2. Weed Sci. Soc. Am., Champaign, IL.Google Scholar
15. Stougaard, R. N., Kapusta, G., and Roskamp, G. 1984. Early preplant herbicide applications for no-till soybean (Glycine max) weed control. Weed Sci. 32:293298.Google Scholar
16. Thurlow, D. L., and Buchanan, G. A. 1972. Competition of sicklepod with soybeans. Weed Sci. 20:379384.Google Scholar
17. Triplett, G. B. Jr. 1977. Weed control for doublecrop soybeans planted with the no-tillage method following small grain harvest. Agron. J. 70:577581.Google Scholar
18. Werling, V. L., and Buhler, D. D. 1988. Influence of application time on clomazone activity in no-till soybeans, Glycine max . Weed Sci. 36:629635.Google Scholar
19. Wesley, R. A., Shaw, D. R., and Barrentine, W. L. 1989. Application timing of metribuzin, chlorimuron, and imazaquin for common cocklebur (Xanthium strumarium) control. Weed Technol. 3:364368.Google Scholar
20. Wesley, R. A. Jr., Shaw, D. R., and Barrentine, W. L. 1989. Incorporation depths of imazaquin, metribuzin, and chlorimuron for common cocklebur (Xanthium strumarium) control in soybeans (Glycine max). Weed Sci. 37:596599.Google Scholar
21. Wilson, H. P., Mascianica, M. P., Hines, T. E., and Walden, R. E. 1986. Influence of tillage and herbicides on weed control in a wheat (Triticum aestivum)—soybean (Glycine max) rotation. Weed Sci. 34:590594.Google Scholar