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Ratios of strontium-85 to cations for crops and soils of Greece

Published online by Cambridge University Press:  27 March 2009

E. P. Papanicolaou ,
C. G. Apostolakis ,
V. Skarlou ,
C. Nobeli  and
P. Kritidis
E. P. Papanicolaou
Affiliation:
Institute of Biology
C. G. Apostolakis
Affiliation:
Institute of Biology
V. Skarlou
Affiliation:
Institute of Biology
C. Nobeli
Affiliation:
Institute of Biology
P. Kritidis
Affiliation:
Institute of Nuclear Technology, National Centre for Scientific Research ‘Demokritos’, 153 10 Aghia Paraskevi, Attica, Greece
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Summary

In a glasshouse pot experiment in Athens, Greece in 1989, 85Sr to calcium observed ratios (OR) based on the values of exchangeable Ca instead of soil Ca (ORexCa), were determined for crops or plant parts grown in eight soils widely differing in their physical and chemical properties. Compared to the values of concentration ratio (CRs) the values of ORexCa did not show as wide variation with the soil type. They were relatively constant and usually not related to soil properties. The ORexCa values were essentially the same as OR values for the non-calcareous soils and much smaller than the OR values for calcareous soils, considering as soil Ca in the calculation of OR, the sum exchangeable, watersoluble and CaCO3 Ca.

The values of 85Sr/Ca + Mg observed ratios (ORexCaMg) were just as good as the ORexCa values, while those of 85Sr/Ca + Mg + K + Na (ORex bases) showed more variation.

Highly significant (P <0·01) correlations were observed between the fractions of the observed ratios ORexCa, ORexCaMg and ORex bases, for each crop or plant part tested.

Type
Crops and Soils
Information
The Journal of Agricultural Science , Volume 119 , Issue 1 , August 1992 , pp. 83 - 87
Copyright
Copyright © Cambridge University Press 1992

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