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Summary

N. M. Belous, P. P. Atroshenko, E. V. Smolsky — Achievements of Science and Technology in Agro-Industrial Complex · The studies were conducted to study the efficiency of mineral fertilizers in the cultivation of bluegrass grass mixture (meadow fescue, meadow foxtail, reed canary grass) on the radioactively contaminated surface-improved central floodplain of the Iput River. The work was carried out in 2019-2021 in the Bryansk region. The density of 137 Cs contamination of the territory is more than 555 kBq/m 2 , the soil cover is represented by alluvial meadow sandy soil on sandy loam alluvium with an exchange acidity of 5.2-5.4 units, organic matter content of 2.1-2.7%, mobile phosphorus and potassium (according to Kirsanov) of 320-440 and 64-80 mg/kg, respectively. The experimental design included the following options: no fertilizers (control); Р 60 К 90 ; N 90 Р 60 К 90 ; N 90 Р 60 К 120 ; N 90 Р 60 К 150 ; Р 60 К 120 ; N 120 Р 60 К 120 ; N 120 Р 60 К 150 ; N 120 Р 60 К 180 . The en