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Nutrient Requirements of Tomatoes (Lycopersicon esculentum) in S. W. Nigeria. II. Foliar Analysis for Assessing N, P and K Requirements

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, Ibadan, Nigeria
A. A. Fayemi
Affiliation:
University of Ibadan, Nigeria
A. Agboola
Affiliation:
University of Ibadan, Nigeria
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Summary

The fifth leaf of tomato plants sampled at the early flowering stage (seventh to eighth week after sowing) gave good assessments of N, P and K requirements of the tomato crop growing in the field but total N was less useful than nitrate-nitrogen for diagnosing nitrogen needs. The levels of critical N, P and K in the crop were 0·4 per cent NO3-N, 0·4 per cent P and 4 per cent K, with severe deficiencies when levels were less than 0·1, 0·15 and 2 per cent respectively.

Information

Type
Research Article
Information
Experimental Agriculture , Volume 11 , Issue 2 , April 1975 , pp. 137 - 143
Copyright
Copyright © Cambridge University Press 1975

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References

REFERENCES

Amon, B. O. E. (1965). Symposium on Maintenance and Improvement of Soil Fertility. Khartoum OAU/STRC Pub. 58.Google Scholar
Akinyemi, A. & Sobulo, R. A. (1970). Proc. Agric. Soc. Nigeria 7, 52.Google Scholar
Berbieri, R. (1965). Prove sulla concimazione dele pomo doro per use Industriale. Roma: Congita.Google Scholar
Burhan, H. O. & Babikir, I. A. (1968). Expl Agric. 4, 311.CrossRefGoogle Scholar
Chapman, H. D. (1964). World Crops 16, 36.Google Scholar
Fremond, Y. & Villemain, G. (1964). Oleagineux 19, 403.Google Scholar
Forde, C. M. (1966). Q. Prog. Rep. Nig. Inst. Oil Palm Res. 57, 21.Google Scholar
Halm, A. T. (1965). Symposium on Maintenance and Improvement of Soil Fertility. Khartoum OAU/SCRT Publ. 98.Google Scholar
Lorentz, O. A. (1965). Plant Food Rev. 11, 2.Google Scholar
Rosenquist, E. A. (1966). The Oil Palm in Malaya. Kuala Lumpur, Malaysia: Min. Agric. and Crops.Google Scholar
Smilde, K. W. & Eysinga, V. A. (1968). Nutritional Diseases in Glasshouse Tomatoes. Wageningen: Centre for Agricultural Publishing and Documentation.Google Scholar
Sobulo, R. A. (1972). Expl Agric. 8, 271.CrossRefGoogle Scholar
Vlitos, A. J. & Lawrie, T. D. (1963). Trop. Agric. 40, 173.Google Scholar
Winsor, G. W., Messing, J. H. L., Hobson, G. E. & Long, M. I. E. (1965). J. Hort. Sci. 40, 156.CrossRefGoogle Scholar