Hostname: page-component-cd9895bd7-mkpzs Total loading time: 0 Render date: 2024-12-23T07:42:43.806Z Has data issue: false hasContentIssue false

Neighbour Effects Between Maize and Cowpea at Various Levels of N and P

Published online by Cambridge University Press:  03 October 2008

S. U. Remison
Affiliation:
National Cereals Research Institute, PMB 5042, Ibadan, Nigeria

Summary

Maize and cowpea were grown in mixed and pure stands, using the same overall density in all plots. Four fertilizer treatments N0P0, N1P0, N0P1 and N1P1 were imposed in experiments carried out during the early growing seasons of 1976 and 1977 at Ibadan in the rainforest zone of Nigeria. There was no competition between the crops for nitrogen or phosphorus and yields in mixtures were significantly higher than the means of the species monocultures, as shown by relative yield total (RYT) and C (complementation) values.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1978

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

REFERENCES

Black, J. N. (1958). Aust J. Agric. Res. 9, 299.CrossRefGoogle Scholar
Davies, M. S. & Snaydon, R. W. (1973). J. Appl. Ecol. 10, 33.CrossRefGoogle Scholar
de Wit, C. T. & van den Bergh, J. P. (1965). Neth. J. Agric. Sci. 13, 212.Google Scholar
de Wit, C. T., Tow, P. G. & Ennik, G. C. (1966). Versl. Landbouwk. Onderz. Ned. 687, 1.Google Scholar
Donald, C. M. (1958). Aust. J. Agric. Res. 9, 421.CrossRefGoogle Scholar
Donald, C. M. (1963). Advan. Agron. 15, 1.CrossRefGoogle Scholar
England, F. W. (1974). J. Agric. Sci. 82, 371.CrossRefGoogle Scholar
Enyi, B. A. C. (1973). Expl Agric. 9, 83.CrossRefGoogle Scholar
Ezedinma, F. O. C. (1964). Trop. Agric. 41, 243.Google Scholar
Fayemi, A. A. (1966). Expl Agric. 2, 101.CrossRefGoogle Scholar
Hill, J. (1973). J. Agric. Sci. 81, 91.CrossRefGoogle Scholar
Trenbath, B. R. (1974). Advan. Agron. 26, 177.CrossRefGoogle Scholar
van den Berg, J. P. & de Wit, C. T. (1960). Meded. Inst. Biol Scheik. Onderz. Landbouw., Wageningen Meded. 121, 155.Google Scholar
Voss, R. E., Hanway, J. J. & Fuller, W. A. (1970). Agron. J. 62, 736.CrossRefGoogle Scholar
Whittington, W. J. & O'Brien, T. A. (1968). J. Appl. Ecol. 5, 209.CrossRefGoogle Scholar