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Nutrient Uptake by Intercropped Maize and Cowpeas and a Concept of Nutrient Supplementation Index (NSI)

Published online by Cambridge University Press:  03 October 2008

T. A. T. Wahua
T. A. T. Wahua
Affiliation:
Agronomy Department, University of Ibadan, Nigeria
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Summary

Accumulation curves for N, P, K and Ca were determined for intercropped maize and cowpeas given different fertilizer combinations. Both species competed for these four elements, with cowpeas suffering relatively more than maize. A concept of a Nutrient Supplementation Index (NSI) was developed to aid studies on fertilization of crop mixtures. Using this index, it was estimated that an additional 9.7, 24.0, 9.7 and 30.6% of N, P, K and Ca, respectively (based on the requirement of sole-crop maize), might be needed to satisfy the combined needs of a 1:1 row maize–cowpea intercrop.

Type
Research Article
Information
Experimental Agriculture , Volume 19 , Issue 3 , July 1983 , pp. 263 - 275
Copyright
Copyright © Cambridge University Press 1983

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References

REFERENCES

Ahmed, S. & Gunasena, H. P. U. (1979). N-utilization and economics of some intercropping systems in tropical countries. Tropical Agriculture, Trinidad 56:117–123.Google Scholar
Baylor, J. E. (1974). Satisfying the nutritional requirements of grain–legume mixtures. In Forage Fertilization, 171–188 (Ed. Mays, D. A.). Madison: Soil Science Society of America.Google Scholar
Blaser, R. E. & Brady, N. C. (1950). Nutrient competition in plant associations. Agronomy Journal 42:128–135.CrossRefGoogle Scholar
Bray, R. H. (1954). A nutrient mobility concept of soil-plant relationships. Soil Science 78:9–22.CrossRefGoogle Scholar
Cochran, W. G. & Cox, G. M. (1957). Experimental Designs, 2nd Edn, 305–308. London: John WUey & Sons.Google Scholar
Donald, C. M. (1963). Competition among crop and pasture plants. Advances in Agronomy 15:1–188.CrossRefGoogle Scholar
Finlay, L. C. (1975). Intercropping soybeans with cereals. In Soybean Production, Protection and Utilization, 77–85 (Ed. Whigham, D. K.). Illinois: INTSOY.Google Scholar
Hanway, J. J. (1960). Growth and Nutrient Uptake by Corn. Iowa State University of Science and Technology, Cooperative Extension Service, Pamphlet No. 277.Google Scholar
Hanway, J. J. & Thompson, H. E. (1971). How a soybean plant develops. Iowa State University of Science and Technology, Cooperative Extension Service, Special Report No. 53.Google Scholar
Kalra, G. S. & Gangwar, B. (1980). Economics of intercropping legumes with maize at different levels of N under rainfed conditions. Indian Journal of Agronomy 22:181–185.Google Scholar
Oelsligle, D. D., McCollum, R. E. & Kang, B. T. (1976). Soil fertility management in tropical multiple cropping. In Multiple Cropping, 275–292. Madison: American Society of Agronomy, Special Publica- tion No. 27.Google Scholar
Okigbo, B. N. & Greenland, D. J. (1976). Intercropping systems in tropical Africa. In Multiple Cropping, 83–101. Madison: American Society of Agronomy, Special Publication No. 27.Google Scholar
Remison, S. U. (1978). Neighbour effects between maize and cowpea at various levels of N and P. Experimental Agriculture 14:205–212.CrossRefGoogle Scholar
Wahua, T. A. T. & Miller, D. A. (1978a). Effects of intercropping on soybean N2-fixation and plant composition of associated sorghum and soybeans. Agronomy Journal 70:292–295.CrossRefGoogle Scholar
Wahua, T. A. T. & Miller, D. A. (1978b). Relative yield totals and yield components of intercropped sorghum and soybeans. Agronomy Journal 70:287–291.CrossRefGoogle Scholar