Hostname: page-component-cd9895bd7-gxg78 Total loading time: 0 Render date: 2024-12-27T10:36:18.346Z Has data issue: false hasContentIssue false
  • English
  • Français

Weed Control in Established Dryland Alfalfa (Medicago sativa)

Published online by Cambridge University Press:  12 June 2017

Robert G. Wilson Jr.
Robert G. Wilson Jr.*
Affiliation:
Dep. Agron., Univ. of Nebraska Panhandle Stn., Scottsbluff, NE 69361
Get access Rights & Permissions [Opens in a new window]

Abstract

Fall-applied herbicides were evaluated in field studies conducted in 1978 through 1980 in western Nebraska for selective weed control in nonirrigated, established alfalfa (Medicago sativa L. ‘Ranger’). All herbicides effectively controlled downy brome (Bromus tectorum L.). Broadleaf weeds were differentially controlled by the herbicides tested. All herbicide treatments increased forage production and protein content over that produced in the untreated check. Increasing the rate of metribuzin [4-amino-6-tert-butyl-3-(methylthio)-as-triazin-5(4H)-one] and simazine [2-chloro-4,6-bis(ethylamino)-s-triazine] above amounts needed for effective weed control caused an increase in the protein content of alfalfa forage above that resulting from normal use rates.

Keywords

Bromus tectorumKochia scopariaforage productionproteinin vitro dry matter digestibility
Type
Research Article
Information
Weed Science , Volume 29 , Issue 5 , September 1981 , pp. 615 - 618
Copyright
Copyright © 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. Anderson, M. J., Fries, G. F., Kopland, D. V., and Waldo, D. R. 1973. Effect of cutting date on digestibility and intake of irrigated first crop alfalfa hay. Agron. J. 65:357–360.Google Scholar
2. Anonymous. 1955. Official methods of Analysis (8th ed.), Assoc. of Analytical Chemists. Washington, DC. 1008 pp.Google Scholar
3. Cords, H. P. 1973. Weeds and alfalfa hay quality. Weeds 21:400–401.Google Scholar
4. Fink, R. J. and Fletchall, O. H. 1967. The influence of atrazine and simazine on forage yield and nitrogen components of corn. Weeds 15:272–274.CrossRefGoogle Scholar
5. Harvey, R. G., Rohweder, D. A., and Fawcett, R. S. 1976. Susceptibility of alfalfa cultivars to triazine herbicides. Agron. J. 68:632–634.Google Scholar
6. Kapusta, G. 1973. Common chickweed control in established alfalfa. Weed Sci. 21:119–122.CrossRefGoogle Scholar
7. Kapusta, G. and Stricker, C. F. 1976. Selective control of downy brome in alfalfa. Weed Sci. 23:202–206.Google Scholar
8. Ries, S. K. and Gast, A. 1965. The effect of simazine on nitrogenous components of corn. Weeds 13:272–274.CrossRefGoogle Scholar
9. Robinson, L. R., Williams, C. F., and Laws, W. D. 1978. Weed control in established alfalfa (Medicago sativa . Weed Sci. 26:37–40.CrossRefGoogle Scholar
10. Swan, D. G. 1978. Effects of repeated herbicide applications on alfalfa (Medicago sativa . Weed Sci. 26:151–153.Google Scholar
11. Tilley, J. M. A., and Terry, R. A. 1963. A two step technique for in vitro digestion of forage crops. J. Br. Grassl. Soc. 18:104–111.Google Scholar