Hostname: page-component-76fb5796d-22dnz Total loading time: 0 Render date: 2024-04-26T05:29:36.170Z Has data issue: false hasContentIssue false
  • English
  • Français

Tall Waterhemp Competition in Grain Sorghum

Published online by Cambridge University Press:  12 June 2017

K. C. Feltner ,
H. R. Hurst  and
L. E. Anderson
H. R. Hurst
Affiliation:
Kansas State University University of Arkansas
L. E. Anderson
Affiliation:
Kansas State University University of Missouri
Get access Rights & Permissions [Opens in a new window]

Abstract

Grain sorghum (Sorghum vulgare Pers.) was grown in combination with varying densities and durations of tall waterhemp (Acnida altissima Riddell) during 1964 and 1965 at Manhattan, Kansas. As waterhemp density and duration increased, sorghum fodder and grain yields were reduced. Yields of both species and competitive influence of waterhemp were highest during the year of high rainfall and supplemental N fertility. The net competitive influence of waterhemp on sorghum grain was accounted for principally by reduced seed size. Competition for soil moisture in 1965 was greatest when weeds remained full-season, and was most pronounced early in the season at soil depths below 20 inches.

Type
Research Article
Information
Weed Science , Volume 17 , Issue 2 , April 1969 , pp. 214 - 216
Copyright
Copyright © 1969 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. Aspinall, D. and Milthorpe, F. L. 1959. An analysis of competition between barley and white persicaria. I. The effects on growth. Ann. Appl. Biol. 47:156–172.CrossRefGoogle Scholar
2. Burnside, O. C. and Wicks, G. A. 1967. The effect of weed removal treatments on sorghum growth. Weeds 15:204–207.CrossRefGoogle Scholar
3. Campbell, E. M. 1923. What is a weed? Science 58:50.CrossRefGoogle ScholarPubMed
4. Davis, R. G., Wiese, A. F., and Pafford, J. L. 1965. Root moisture extraction profiles of various weeds. Weeds 13:98–100.CrossRefGoogle Scholar
5. Feltner, K. C., Hurst, H. R., and Anderson, L. E. 1969. Yellow foxtail competition in grain sorghum. Weed Sci. 17:211–213.CrossRefGoogle Scholar
6. Hammerton, J. L. 1967. Effects of weed control and nitrogen application rate on the yield and nitrogen content of kale. Weed Res. 7:37–50.CrossRefGoogle Scholar
7. Shantz, H. L. and Piemeisel, L. N. 1927. The water requirement of plants at Akron, Colorado. J. Agr. Res. 34:1093–1190.Google Scholar
8. Vengris, J., Drake, M., and Colby, W. G. 1955. Plant nutrient competition between weeds and corn. Agron. J. 47:213–216.CrossRefGoogle Scholar
9. Wiese, A. F., Collier, J. W., Clark, L. E., and Havelka, U. D. 1964. Effect of weeds and cultural practices on sorghum yields. Weeds 12:209–211.CrossRefGoogle Scholar