THE ENTRANCE INTO PLANTS AND ACCUMULATION IN THE YIELD OF SOME RADIOACTIVE PRODUCTS OF DIVISION (in Russian)
Radioactive fission products may accumulate in plants in higher concentrations than are contained in an external medium. Sr/sup 90/ has the highest ability to concentrate in the yield of agricultural plants because 80 to 90% of strontium entering the plants moves into the overground organs. Furthermore the radiostrontium being in the soil in a more mobile state than other fission products may enter the plants intensively. The plants accumulate the radiostrontium from water solutions approximately 100 times as much as from the soil, depending on its properties and peculiarities of plants, by 5 to lO times higher than its concentration in an external medium. Under certain conditions the Cs/sup 137/ content in plants may also reach considerable values. On entering through leaves, cesium moves intensively into other organs and a considerable amount of cesium may accumulate in the yield, in particular, in the reproductive organs of the plant. The radioactive fission products, in particular strontium and cesium, enter the plants from light soils most intensively while their entrance from heavy soils is considerably less. On light soils some plants may absorb a great amount of Sr/sup 90/ reducing its content in the soil. The chalking of acid soils and the application of organic substances reduces the fission products entering into plants and their accumulation in the yield, especially on light soils. The cesium and strontium content in the yield of plants is decreased when numerous fertilizers and dung are systematically applied. The most essential lowering in accumulation of fission products in agricultural plants is observed when these plants are deeply imbedded in the soil. (auth)
- Research Organization:
- Order of Lenin Agricultural Academy, Moscow
- NSA Number:
- NSA-15-005893
- OSTI ID:
- 4082567
- Journal Information:
- Izvest. Akad. Nauk S.S.S.R., Ser. Biol., Journal Name: Izvest. Akad. Nauk S.S.S.R., Ser. Biol. Vol. Vol: No. 6
- Country of Publication:
- Country unknown/Code not available
- Language:
- Russian
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