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A Preliminary Survey of Cocoa Nutrition in Relation to Dieback Disease in Papua–New Guinea

Published online by Cambridge University Press:  03 October 2008

D. P. Drover
D. P. Drover
Affiliation:
Department of Chemistry and Earth Science, University of Papua and New Guinea, P.O. Box 1144, Boroko, Papua and New Guinea
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Summary

Cocoa leaves were analysed for potassium, calcium, magnesium, manganese, iron, copper and zinc to assess the nutritional status of this crop in Papua–New Guinea, as part of a study into a dieback disease. Potassium and manganese contents of the leaves were generally high, whilst magnesium, iron and copper were often low. Some exchangeable cation data from soils is presented. Nutrient imbalances, toxicities and deficiencies, may make cocoa more susceptible to dieback.

Type
Research Article
Information
Experimental Agriculture , Volume 6 , Issue 1 , January 1970 , pp. 33 - 40
Copyright
Copyright © Cambridge University Press 1970

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References

Allan, J. E. (1961a). Spectrochimica Acta. 17, 459.CrossRefGoogle Scholar
Allan, J. E. (1961b) Analyst 86, 530.CrossRefGoogle Scholar
Allen, A. W. (1966). Proc. Second Malays. Soil Conf., Kuala Lumbpur, 215.Google Scholar
Brookfield, H. C. & Hart, D. (1966). Dept of Geography, Publ. G/3, Res. School of Pacific Studies, Aust. Nat. Univ.Google Scholar
David, D. J. (1959). Analyst 84, 536.CrossRefGoogle Scholar
David, D. J. (1960). Analyst 85, 495.CrossRefGoogle Scholar
Evans, H. & Fennah, R. G. (1953). Imp. Coll. Trop. Agric. Rep. Cacao Res. 1945–51, 45.Google Scholar
Evans, H. & Murray, D. B. (1953). Imp. Coll. Trop. Agric. Rep. Cacao Res. 1945–51, 63.Google Scholar
Graham, G. K. & Basedon, S. C. (1956). Papua and New Guinea Agric, J. 10, 73.Google Scholar
Green, E. C. D. (1938). New Guinea Agric. Gaz. 4, 3.Google Scholar
Haantjens, H. A., Reynders, J. J., Mouthaan, W. L. P. & Van Baren, F. A. (1967). Major Soil Groups of New Guinea and Their Distribution. Comm. 55, Dept Agric. Res., Koninklijk Instituut Voor de Tropen. Amsterdam.Google Scholar
Hutton, J. (1955). Div. Report 11/55, C.S.I.R.O., Aust. Div. of Soils.Google Scholar
Lockard, R. G., Vamathevan, P. & Thamboo, S. (1959). Dept Agric. Bull. 107, Federation of Malaya.Google Scholar
Loué, A. (1961). Inst. franç. Caflé Cacao Bull. 1, 53.Google Scholar
Maskell, E. J., Evans, H. & Murray, D. B. (1953). Imp. Coll. Trop. Agric. Rep. Cacao Res. 1945–51, 53.Google Scholar
Murray, D. B. (1966). Cacao Nutrition. Ch. 9. Temperate to Tropical Fruit Nutrition. Horticultural Publications. N.J.Google Scholar
Nichols, R. (1961). Imp. Coll. Trop. Agric. Rep. Cacao Res. 1959–60, 23.Google Scholar
Piper, C. S. (1942). Soil and Plant Analysis. Univ. Adelaide.Google Scholar
Schroo, H. (1959). Neth. J. Agric. Sci. 7, 309.Google Scholar
Shaw, D. E. (1963). Papua and New Guinea Agric. J. 15, 79.Google Scholar
Southern, P. J. (1966). Technical Meeting on Cocoa Production South Pacific Commission, Honiara, B.S.I.P.Google Scholar
Turner, P. D. (1967). FAO Plant Protection Bull. 15, 81.Google Scholar