Hostname: page-component-586b7cd67f-g8jcs Total loading time: 0 Render date: 2024-11-29T00:30:46.607Z Has data issue: false hasContentIssue false

Response of Soybeans (Glycine max) to Planting in Untilled, Weedy Seedbed on Clay Soil

Published online by Cambridge University Press:  12 June 2017

Larry G. Heatherly
Affiliation:
Soybean Prod. Res., P.O. Box 196, and South Weed Sci. Lab., U.S. Dep. Agric., Agric. Res. Serv., Stoneville, MS 38776
C. Dennis Elmore
Affiliation:
Soybean Prod. Res., P.O. Box 196, and South Weed Sci. Lab., U.S. Dep. Agric., Agric. Res. Serv., Stoneville, MS 38776

Abstract

Soybeans [Glycine max (L.) Merr.] were planted in an untilled, stale seedbed and conventionally tilled seedbed of Sharkey clay (Vertic Haplaquept) at Stoneville, Mississippi, in 1979 and 1980 to determine the feasibility of the stale -seedbed approach for soybean production in the Mississippi River Delta. Chemical weed control included applications of preplant, preemergence, and postemergence herbicides. Prickly sida (Sida spinosa L.) was the dominant weed in all tillage and weed-control systems. Perennial species were observed at harvest mostly in the stale - seedbed plots. Preemergence herbicides reduced the total weight of weeds per plot. Conventional seedbed preparation caused delays in planting of 3 weeks or more. In the presence of adequate soil moisture, yields of ‘Bedford,’ ‘Tracy’, and ‘Bragg’ cultivars from the stale - seedbed planting and areas that had been treated preemergence were always equal to or greater than yields from the tilled - seedbed plantings and areas that had been treated postemergence. In 1980, the hot, dry conditions of the growing season apparently negated any effect from either earlier planting or preemergence vs. post-emergence weed control.

Type
Research Article
Copyright
Copyright © 1983 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. Burnside, O. C. 1972. Tolerance of soybean cultivars to weed competition and herbicides. Weed Sci. 20:294297.Google Scholar
2. Burnside, O. C. 1979. Soybean (Glycine max) growth as affected by weed removal, cultivar, and row spacing. Weed Sci. 27:562565.Google Scholar
3. Chappell, W. E. 1974. No-tillage studies in soybeans, corn, and vegetables. Proc. South. Weed Sci. Soc. 27:100108.Google Scholar
4. Crab tree, R. J. and Rupp, R. N. 1980. Double and monocropped wheat and soybeans under different tillage and row spacings. Agron. J. 72:445448.Google Scholar
5. Eaton, B. J., Russ, O. G., and Feltner, K. C. 1976. Competition of velvetleaf, prickly sida, and Venice mallow in soybeans. Weed Sci. 24:224228.Google Scholar
6. Erbach, D. C., Wilkins, D. E., and Lovely, W. G. 1969. An evaluation of chemical and mechanical weed control for soybeans grown with no-plow tillage systems. Proc. North Cent. Weed Control Conf. 24:7475.Google Scholar
7. Hardcastle, W. S. 1973. Weed control in conventional, non-tilled, and stale bed plantings of soybeans. Proc. South. Weed Sci. Soc. 26:88.Google Scholar
8. Heatherly, Larry G. 1981. Soybean response to tillage of Sharkey clay soil. Miss. Agric. For. Exp. Stn. Bull. 892. 6.Google Scholar
9. Heatherly, Larry G. and Ginn, L. H. 1981. Portable system for furrow irrigation of small plots. Soil Sci. Soc. Am. J. 45:9991000.Google Scholar
10. Joshi, J. M. 1980. Effect of planting dates and soybean cultivars on pod damage by corn earworm. Crop Sci. 20:5963.Google Scholar
11. Kapusta, George. 1979. Seedbed tillage and herbicide influence on soybean (Glycine max) weed control and yield. Weed Sci. 27:520526.Google Scholar
12. Kincade, R. T. 1971. The role of paraquat in soybean stubble plant systems in the Mississippi Delta. Proc. North Cent. Weed Control Conf. 26:7780.Google Scholar
13. Martin, C. K., Cassel, D. K., and Kamprath, E. J. 1979. Irrigation and tillage effects on soybean yield in a coastal plain soil. Agron. J. 71:592594.Google Scholar
14. Sanford, J. O., Myhre, D. L., and Merwine, N. C. 1973. Double cropping systems involving no-tillage and conventional tillage. Agron. J. 65:978982.Google Scholar
15. Triplett, G. B. Jr. 1978. Weed control for doublecrop soybeans planted with the no-tillage method following small grain harvest. Agron. J. 70:577581.Google Scholar
16. Triplett, G. B. and Lytle, G. D. 1972. Control and ecology of weeds in continuous corn grown without tillage. Weed Sci. 20: 453457.Google Scholar