Soil- and plant-based countermeasures to reduce 137Cs and 90Sr uptake by grasses in natural meadows: the REDUP project

134Cs uptake by four plant species and Cs–K relations in the soil–plant system as affected by Ca(OH)2 application to an acid soil

“…Campbell and Davies (1997) concluded that limestone application in a loamy sand soil did not significantly influence Cs concentration in grass. Vidal et al (2001) also found that the effect of soil liming on 137 Cs uptake by grasses was negligible.…”

Plant uptake and downward migration of 85Sr and 137Cs after their deposition on to flooded rice fields: lysimeter experiments with and without the addition of KCl and lime

“…Such TF a reduction by the KCl and lime addition is due mainly to the competition for plant uptake between chemically-analogous ions, that is, Sr vs. Ca and Cs vs. K (Wiklander, 1964;Till and Meyer, 1983;Lembrechts et al, 1990;Shaw et al, 1992;Vidal et al, 2001;Zhu, 2001). Decrease in pH by liming might contribute to the reduction (Till and Meyer, 1983).…”

“…The best examples are K against Cs and Ca against Sr (Wiklander, 1964;Till and Meyer, 1983;Lembrechts et al, 1990;Shaw et al, 1992;Vidal et al, 2001;Zhu, 2001). Fertilizer KCl and lime, widely used in agriculture, contain K and Ca as main elements, respectively.…”

Effects of the simultaneous application of potassium and calcium on the soil-to-Chinese cabbage transfer of radiocesium and radiostrontium

“…For a soil-based method, the addition of materials with the potential of suppressing root uptake has been widely studied (Ioannides et al, 2003;Lembrechts, 1993;Nisbet et al, 1993;Vidal et al, 2001). As a result, it is well established that stable ions chemically analogous to radionuclides can act as good suppressors through a competition for root uptake.…”