Abstract
A pot experiment was conducted to study the root uptake of 137Cs by vegetables grown in peat and compost mould in a greenhouse. The 137Cs in the growing media originated from Chernobyl fallout. The vegetables were cucumber ( Cucumis sativus L. var. Farbio VDP SF 76), tomato ( Lycopersicon esculentum L. var. Virosa), parsley ( Petroselinum crispum A. W. Hill var. Non plus ultra), radish ( Raphanus sativus L. var. Nondan) and lettuce ( Lactuca sativa L. var. Atraktion). The effect of adding potassium to the peat was also studied. The transfer factors (activity in plant dry weight/activity in soil dry weight) varied from 0·66 to 1·8 for peat and from 0·060 to 0·19 for compost mould. Addition of potassium did not have any clear effect on the transfer factors.
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