COMPARATIVE ASSESSMENT OF VARIOUS FERTILIZER SYSTEMS IN CASE OF CULTIVATION OF WINTER RYE IN THE CONDITIONS OF RADIOACTIVE POLLUTION OF THE TERRITORY
Results of long experiment on studying of combined action of mineral and organic fertilizers on productivity and quality of grain of winter rye in conditions are provided it is radioactive the polluted soils of the southwest of the Bryansk region. Increase in doses of the introduced fertilizers promoted the reliable growth of productivity of grain of winter rye (by 1.5-2.2 times in relation to control) and to increase in protein content in it. Accumulating of macrocells in products practically didn't depend on the level of mineral food of plants, variability made 0.02%. The systems of fertilizer studied in experience promoted decrease in the amount of accumulating <sup>137</sup>Cs in grain of winter rye. Specific activity of grain of winter rye on average for years of researches didn't exceed the standard rate and made 26-58 Bq/kg depending on system of fertilizer.