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On the problem of crop management in the radioactive contaminated territories

The effectiveness of both separate and combined application of lime, potassium and organic fertilisers in decreasing 137 Cs accumulation in crop yield after the ChNPP accident has been demonstrated in field experiments on soddy-podzolic sandy contaminated soil as a result of the ChNPP accident. It was revealed that the radiocaesium transfer to crop products can be controlled by selecting crop species with different radionuclide accumulation ability. The technology of tillage was found to reduce radionuclide concentration in the yield up to a factor of 2. The problems of optimization of cereal crop protection on contaminated areas are considered. The advisability of using the method of presowing seeds incrustation by biologically active substances has been shown which makes possible stabilization of the phytosanitary situation and thus reducing pesticide application. In this case the yield gain and minimization of radiocaesium transfer to products is achieved.