Usefulness of AFCF as a countermeasure for radiocaesium transfer from loamy soil to rye-grass and clover

Promising results were obtained using ammonium-ferric-hexacyano-ferrate (AFCF) as a countermeasure to reduce radiocaesium transfer to rye-grass grown on sandy soil. In the aftermath of these results, its efficacity as a countermeasure on loamy soil was tested. AFCF concentrations of 3 and 10 gm−2 reduced radiocaesium transfer from loamy soil to rye-grass by 28% and 64%, respectively. AFCF additions of less than 3 gm−2 were not effective in reducing the TF. Ploughing the soil was as effective in reducing radiocaesium transfer as were AFCF additions of 10 gm−2. For clover, only AFCF additions of 10 gm−2 significantly reduced transfer (by 60%). As for rye-grass, ploughing was equally effective in reducing TF as the highest AFCF dose. Contrary to the results for rye-grass, however, AFCF addition rates of 10 gm−2 decreased the growth of clover.