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Yield and Height of Cotton as Affected by Weed Density and Nitrogen Level

Published online by Cambridge University Press:  12 June 2017

E. L. Robinson
E. L. Robinson*
Affiliation:
Field Crops Util. and Market. Res. Lab., Agr. Res. Serv., U.S. Dep. Agr., Athens, GA 30604
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Abstract

Cotton (Gossypium hirsutum L. ‘Stoneville 7A’) grown for 3 yr in competition with various weed densities and nitrogen levels showed annual weeds could reduce cotton heights as much as 75% and cotton yields as much as 88%. Cotton yields were increased by 18 to 30% by adding nitrogen to plots with no weeds. In 1973, cotton supplied with 224 kg/ha of nitrogen could tolerate up to 50% weeds without loss of yield. Weeds left to grow and reseed with no control resulted in increasingly greater competition with each succeeding year.

Information

Type
Research Article
Information
Weed Science , Volume 24 , Issue 1 , January 1976 , pp. 40 - 42
Copyright
Copyright © 1976 by the Weed Science Society of America 

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References

Literature Cited

1. Buchanan, G.A. and Burns, E.R. 1970. Influence of weed competition on cotton. Weed Sci. 18:149–153.Google Scholar
2. Blaser, R.E. and Brady, N.C. 1950. Nutrient competition in plant association. Agron. J. 42:128–135.Google Scholar
3. Burnside, O.C. and Wicks, G.A. 1967. The effect of weed removal treatments on sorghum growth. Weed Sci. 15:204–207.Google Scholar
4. Clements, F.E. and Weaver, J.E. 1924. Experimental vegetation. Carnegie Inst. Wash. Pub. 335. 172 pp.Google Scholar
5. Hill, L.V. and Santelman, P.W. 1969. Competitive effects of annual weeds on Spanish peanuts. Weed Sci. 17:1–2.Google Scholar
6. Knake, E.L. and Slife, F.W. 1962. Competition of Setaria faberii with corn and soybeans. Weeds 10:26–29.Google Scholar
7. Kurtz, T.S., Melsted, S.W., and Bray, R.H. 1952. The importance of nitrogen and water in reducing competition between crops and corn. Agron. J. 44:13–17.Google Scholar
8. Staniforth, D.W. 1961. Responses of corn hybrids to yellow foxtail competition. Weeds 9:132–136.Google Scholar
9. Vengris, J.W., Cobby, C., and Drake, M. 1955. Plant nutrient competition between weeds and corn. Agron. J. 47:213–216.Google Scholar