In areas with intensive farming, as in Denmark, it is of great interest to identify possible countermeasures to be taken in order to reduce the long-term effects of radioactive contamination of arable land. The most important long-lived radionuclides from the Chernobyl were 137Cs and 134Cs. The aim of the present project was to identify crops with relatively low or high root uptake of these two isotopes. Although such differences may be small, a shift in varieties might be a cost-effective way to reduce collective doses. The experiment was carried out at Risø National Laboratory in the summer of 1988. The species used were: spring barley (Hordeum vulgare L) varieties: Golf, Apex, Anker, Sila; Perennial rye grass (Lolium perenne L.) varieties: Darbo (early) and Patoro (late); Italian rye grass (Lolium multiflorum) variety: Prego; and pea (Pisum arvense L.) variety: Bodil. Each crop was grown in two types of soil, a clay-loam and an organic soil. 137Cs was added to the clay-loam. The organic soil, which was contaminated with 137Cs from the Chernobyl accident, was supplied with 134Cs. Sila barley and Italian rye grass were identified among the species tested as plants with a relative high uptake of radiocaesium.
|Place of Publication||Roskilde|
|Publisher||Risø National Laboratory|
|Number of pages||20|
|Publication status||Published - 1989|
This project was supported by the CEC Radiation Protection Programme, Contract no. B16-PC-267-DK.