Global Advanced Research Journal of Agricultural Science (GARJAS) ISSN: 2315-5094
June 2014 Vol. 3(6): pp. 152-157
Copyright © 2014 Global Advanced Research Journals


Full Length Research Paper

Evaluation of metal composition of phosphate fertilizers in Ghana

E. K. Ahialey, E.A. Kaka, D. Denutsui, R. K. Yankey, E. Quarshie, D.K. Sarfo,  D.K. Adotey and S. Enti-Brown


Nuclear Chemistry and Environmental Research Centre, Ghana Atomic Energy Commission, Box LG 80, Legon, Accra, Ghana

*Corresponding Author’s Email:

Accepted 24 February, 2014



The elemental composition and possible sources of metals in phosphate chemical fertilizers used in Ghana were determined. The fertilizers used in this include Rock Phosphate (RP), Triple Super Phosphate (TSP), Mono Ammonium Phosphate (MAP), Diammonium Phosphate (DAP), and NPKs in varying proportions. Analysis of these metals of interest was carried out with Flame Atomic Absorption spectrometer (FAAS). Metals such as Cr, Co, Cu, Cd, Mg, Mn, Pb and Zn were possibly generated by the dry milling process of phosphate rocks in the fertilizer manufacturing factories. The chemical reactions within the factories probably participated in the metal loads. Triple Super Phosphate (TSP) had relatively high levels of metals in the fertilizers.

Keywords: Phosphate, Rock, Fertilizer, Metal.



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