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

Abstract

S U M M A R YIn a glasshouse pot experiment in Athens, Greece in 1989, 85 Sr to calcium observed ratios (OR) based on the values of exchangeable Ca instead of soil Ca (OR ex Ca), 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 OR ex Ca did not show as wide variation with the soil type. They were relatively constant and usually not related to soil properties. The OR ex Ca 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 CaCO 3 Ca.The values of 85 Sr/Ca + Mg observed ratios (OR ex CaMg) were just as good as the OR ox Ca values, while those of 85 Sr/Ca + Mg + K + Na (OR C1( bases) showed more variation.Highly significant (P < 001) correlations were observed between the fractions of the observed ratios OR ex Ca, OR ex CaMg and OR CX bases, for each crop or plant part tested.

Strontium and Calcium Relations in Plant and Soil Solution on Chornobyl-Affected Areas

“…This question should be investigated additionally in more details. We think that the difference in the ratios strontium-calcium in plant and in the corresponding soil solution marked by Papanicolaou et al [4] and earlier by another researchers may be explained in two ways. First, the content of soil solution was determined there by the chemical analysis of soil, but not by the direct measurement of soil solution.…”

“…This equality or OR-value should help to predict the uptake of strontium to plants. Other researchers disagree, however, with the above assertion (Papanicolaou et al [4]). They showed that the calculated OR-values varied considerably.…”