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Inositol penta‐ and hexaphosphate content of some cocoa soils in Ghana
Author(s) -
Haim B. J.,
Ahenkorah Y.,
Appiah M. R.
Publication year - 1982
Publication title -
zeitschrift für pflanzenernährung und bodenkunde
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.644
H-Index - 87
eISSN - 1522-2624
pISSN - 0044-3263
DOI - 10.1002/jpln.19821450611
Subject(s) - chemistry , soil water , inositol , phosphorus , polyphosphate , incubation , environmental chemistry , inositol phosphate , food science , phosphate , biochemistry , organic chemistry , biology , ecology , receptor
The inositol penta‐ and hexaphosphate content of some typical cocoa soils in Ghana was measured by anion exchange chromatography with HCOONH 4 as eluant. The values which ranged from 6 to 35 ppm P (average 18 ± 8 ppm P) and accounted for 6% to 40% (average 14%) of the organic phosphorus are within those ranges reported for Canadian, Nigerian, but much lower than those for Scottish soils. The penta‐ and hexaphosphate content of the soil significantly correlated with total P, organic P, organic C, total N, Fe and P retention capacity. Incubation of soil for 11 weeks did not alter the inositol penta‐ and hexaphosphate content of the soil. Inorganic P adsorption could be decreased by adding inositol hexaphosphate. These data support the suggestion that a role of the esters in nutrition of crops is probably through the indirect effect of blocking of retention sites and agents which would otherwise be free to bind inorganic phosphorus.