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The accumulation of Strontium-90 in strawberries (Pandora variety), depending on the depth of its occurrence in the soil

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When radioactive contamination of agricultural land happens, arises the question of their possible use for growing berry, fruit and grain crops. Under conditions of field experiment, experimental data on the quantitative regularities of the migration of radioactive substances in the agroecosystem in the link of the trophic chain «soil-plant» were obtained, using the example of strawberries, the «Pandora» variety. The content of the radionuclide in the vegetative and generative organs of the strawberry variety «Pandora» is higher in the first variant of the experiment than in the second. The difference in the content of Strontium-90 between the options reached: for leaves – 8,1 times, shoots – 9,3 times, berries – 17,5 times. During the study period, the content of Strontium-90 in all organs of the plant gradually increases, but most intensively with the location of the nuclide on the soil surface. When the nuclide is located on the soil surface, the greatest pollution, in comparison with the leaves and shoots, is established for strawberries. When Strontium-90 is located in the soil at a depth of 50 cm, the greatest accumulation is determined for the leaves. The experimental data make it possible to calculate the radionuclide transition coefficients in plants. It became possible to compile a forecast of nuclide accumulation in the vegetative and generative organs of the plant and make proposals for the use of contaminated territory for agricultural needs.