Yields and grain quality of winter rye cultivated on sod-podzolic radioactively contaminated soil depending on the applied means of chemicalization

Abstract

Relevance. The effect of mineral fertilizers of various degrees of saturation and the biological preparation Albit on the yields and quality of winter rye grain of the Moskovskaya-12 variety has been studied in a stationary field experiment on the radioactively contaminated sod-podzolic sandy loam soil. Methods. The researchers conducted (2019–2021) at the experimental field of the Novozybkov branch of the Bryansk State Agrarian University established that the highest yield of winter rye grain (4.37 t/ha) was formed when using full mineral fertilizer N90P60K150 against the background of treatment of winter rye plants with biopreparation Albit. Results. Under the influence of the applied means of chemicalization, an improvement in the biophysical parameters of winter rye grain has been noted. The content of raw protein in winter rye grain, depending on the fertilizer systems used, has varied from 11.3 to 13.5% with its highest collection (0.599 t/ha) per unit area when using the N90P60K150 fertilizer system in combination with the biopreparation Albit. The use of the complete mineral fertilizer (NPK) with consistently increasing doses of potassium both separately and in combination with the biopreparation Albit has contributed to a decrease in the specific activity of 137Cs in winter rye grain by more than 2.1 times in comparison with the control.