Hostname: page-component-745bb68f8f-kw2vx Total loading time: 0 Render date: 2025-01-20T17:09:37.684Z Has data issue: false hasContentIssue false
  • English
  • Français

Nutrient Requirements of Tomatoes (Lycopersicon esculentum) in S.W. Nigeria. I. Effects of N, P and K on Yields

Published online by Cambridge University Press:  03 October 2008

R. A. Sobulo ,
A. A. Fayemi  and
A. Agboola
R. A. Sobulo
Affiliation:
Institute of Agricultural Research and Training, University of Ife
A. A. Fayemi
Affiliation:
University of Ibadan, Nigeria
A. Agboola
Affiliation:
University of Ibadan, Nigeria
Get access Rights & Permissions [Opens in a new window]

Summary

The response of tomatoes to applied N, P and K was determined in six trials in the forest and savannah zones of Nigeria. In the savannah area, N was the most deficient nutrient, with an optimum level of 60 kg. N/ha., while P and K were required at lower rates of between 20–60 kg. P2O5 and K2O/ha. depending on initial soil nutrient status and moisture availability. In forest soils developed from sedimentary rocks, P requirement was high (120 kg. P2O5/ha.) and response to N was small, but K could be important on the well-drained soils in this area because of low K reserves (0·1 per cent total K) compared with soils from igneous rocks in the savannah with more than 0·6 per cent total K. The potential of the savannah for large-scale tomato production is discussed, as well as factors limiting yields in Western State of Nigeria.

Type
Research Article
Information
Experimental Agriculture , Volume 11 , Issue 2 , April 1975 , pp. 129 - 135
Copyright
Copyright © Cambridge University Press 1975

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

Amon, B. O. E. (1965). Proc. OAU/STRC Symposium on Maintenance of Soil Fertility, Publ. 58.Google Scholar
Amon, B. O. E. & Adetunji, S. A. (1970) Res. Rep. 55, Ibadan Min. Agric. Nat. Res., Nigeria.Google Scholar
Arny, D. C., Bliss, F. A., Combs, R. B., Libby, J. L. & Simons, J. H. (1968). Ext. Bull. Min. Agric. Nat. Res., Western State, Nigeria.Google Scholar
De Geus, G. (1973). Fertilizer Guide for the Tropics and Subtropics (2nd Edn). Centre Detode Bleicherweg.Google Scholar
Hurd, R. G. & Cooper, A. J. (1970). J. Hort. Sci. 45, 19.CrossRefGoogle Scholar
Inyang, O. A. (1966). Samaru Newsletter 8, 67, Inst. Agr. Res. Zaria, Northern Nigeria.Google Scholar
Johnson, K. E. (1962). Soil Tests and Fertilizer Recommendations in Western Nigeria. Rep. Min. Agr. Nat. Res., Western Region, Nigeria.Google Scholar
Moore, A. W. & Jaiyebo, E. O. (1963). Emp. J. Expl. Agric. 31, 189.Google Scholar
Moss, P. (1957). Classification of the Soils found over Sedimentary Rocks in Western Nigeria. Soil Survey Rep., Min. Agr. Nat. Res., Western Region, Nigeria.Google Scholar
Sobulo, R. A. (1969). Niger. Agric. J., 6, 65.Google Scholar
Sobulo, R. A. (1970). Afr. Soils 15, 351.Google Scholar
Sobulo, R. A. (1973a). Proc. Sci. Ass. Nigeria.Google Scholar
Sobulo, R. A. (1973b). 10th Colloq. Int. Pot. Inst., 85.Google Scholar
Wild, A. (1973). FAO/SIDA Conference,Ibadan, Nigeria.Google Scholar
Winsor, G. W., Davies, J. N. & Long, M. I. E. (1967). J. Hort. Sci. 42, 277.CrossRefGoogle Scholar