EFFICIENCY OF USING NON-TRADITIONAL TYPES OF FERTILIZERS OF MELIORANTS ON RADIOACTIVELY CONTAMINATED SOILS

Abstract

When organizing agricultural production in territories where the contamination of products does not lead to exceeding the limits of individual radiation doses, the collective criterion is the collective dose of population exposure. In such cases, the optimization of the structure of agricultural production is aimed at achieving a minimum flow of radioactive cesium into the body of the population with food. In the distant post-аccident period, the challenge is to ensure the costeffective production of agricultural products with the lowest possible concentration of radionuclides in specific envirоnmental conditions. Measures to reduce the concentration of radionuclides in products below the established standards are taken taking into account their economic feasibility. It is possible to achieve reduction of the radionuclide migration intensity through the implementation of nature conservation measures, maintenance of soil-protective systems of agriculture with contour-reclamation organization of the territory, use of machines and technologies that enhance the barrier function of naturallandscapes. he article shows the influence of local raw materials (phosphorites, limestone, glauconite, sapropel), as fertilizers and ameliorants, on the grain yield of oats and lupine. It is proved that the use of non-traditional types of fertilizers and ameliorants contribute to increasing the bio-productivity of soddy-weakly podzolic sandy soil, as well as reduce the content of radionuclides in grain. According to the results of the studies, it can be concluded that the use of local raw materials (phosphorites, glauconite sands, limestone, sapropel) as ameliorants and fertilizers for growing crops is an effective agricultural method, especially on radioactivelycontaminated lands. In addition, it should be noted that the use of ameliorants is cost-effective, which provides a cost recovery.