Hostname: page-component-84b7d79bbc-rnpqb Total loading time: 0 Render date: 2024-07-30T13:31:14.988Z Has data issue: false hasContentIssue false
  • English
  • Français

Mechanical, Cultural, and Chemical Control of Weeds in a Sorghum-Soybean (Sorghum bicolor)–(Glycine max) Rotation

Published online by Cambridge University Press:  12 June 2017

O. C. Burnside
O. C. Burnside*
Affiliation:
Dep. Agron., Univ. of Nebraska, Lincoln, NE 68583
Get access Rights & Permissions [Opens in a new window]

Abstract

A crop rotation of sorghum [Sorghum bicolor (L.) Moench] and soybeans [Glycine max (L.) Merr.] with various weed control treatments was conducted from 1968 to 1975 at Lincoln, Nebraska, in order to improve weed control in these two crops. Poor weed control during one growing season increased weed growth and decreased yields of succeeding crops. Trifluralin (α,α,α-trifluoro-2,6-dinitro-N,N-dipropyl-p-toluidine) at 1.1 kg/ha on soybeans showed greater soil carryover toxicity to sorghum planted 12 months later than did atrazine [2-chloro-4-(ethylamino)-6-(isopropylamino)-s-triazine] at 3.4 kg/ha on sorghum to subsequently planted soybeans. Under this crop rotation green foxtail [Setaria viridis (L.) Beauv.], tall waterhemp [Amaranthus tuberculatos (Moq.) J. Sauer], and large crabgrass [Digitaria sanguinalis (L.) Scop.] decreased; whereas, velvetleaf (Abutilon theophrasti Medic), sunflower (Helianthus annuus L.), and Pennsylvania smartweed (Polygonum pensylvanicum L.) increased. Germinating weed seedlings from soil samples were greater in weedy check plots during the final years of the crop rotation due to a buildup of seed from those species that increased. Handweeding, herbicides, and plowing reduced weed populations, weed competition, and increased sorghum and soybean yields.

Keywords

Crop rotationherbicideherbicide residueweed competitionweed shifts
Type
Research Article
Information
Weed Science , Volume 26 , Issue 4 , July 1978 , pp. 362 - 369
Copyright
Copyright © 1978 by the 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. Blake, G. R. 1965. Bulk density. Pages 374–390 in Black, C. A. et al., eds. Methods of Soil Analysis. Part I. Physical and Mineralogical Properties, Including Statistics of Measurement and Sampling. Agronomy No. 9, Am. Soc. Agron., Madison, Wisconsin.Google Scholar
2. Burnside, O. C. 1972. Tolerance of soybean cultivars to weed competition and herbicides. Weed Sci. 20:294–297.Google Scholar
3. Burnside, O. C. 1974. Trifluralin dissipation in soil following repeated annual applications. Weed Sci. 22:374–377.Google Scholar
4. Burnside, O. C. and Moomaw, R. S. 1975. Sorghum growth as affected by annual applications of atrazine. Weed Sci. 23:494–498.CrossRefGoogle Scholar
5. Burnside, O. C. and Wicks, G. A. 1969. Influence of weed competition on sorghum growth. Weed Sci. 17:332–334.Google Scholar
6. Dowler, C. C. and Parker, M. B. 1975. Soybean weed control systems in two southern coastal plains soils. Weed Sci. 23:198–202.Google Scholar
7. Eaton, B. J., Russ, O. G., and Feltner, K. C. 1975. Competition of velvetleaf, prickly sida, and venice mallow in soybeans. Weed Sci. 24:224–228.Google Scholar
8. Knake, E. L., Appleby, A. P., and Furtick, W. R. 1967. Soil incorporation and site of uptake of preemergence herbicides. Weeds 15:228–232.Google Scholar
9. Nuland, D. S. and Dunse, J. W. 1968. The persistence of trifluralin in soil and its effect on milo yields 2 and 4 years after application. North Cent. Weed Control Conf. Res. Rep. 25:5–6.Google Scholar
10. Parka, S. J. and Tepe, J. B. 1969. The disappearance of trifluralin from field soils. Weed Sci. 17:119–122.Google Scholar
11. Savage, K. E. 1973. Nitralin and trifluralin persistence in soil. Weed Sci. 21:285–288.Google Scholar
12. Young, J. A. and Evans, R. A. 1976. Responses of weed populations to human manipulations of the natural environment. Weed Sci. 24:186–190.Google Scholar