Influence of mineral fertilizers on economic indicators of cultivated varieties of spring triticale in the conditions of the republic of Mari ElV. A. Maksimov, Y. A. Lapsyin, R. I. Zolotareva and R. B. MaksimovaBIO Web Conf., 37 (2021) 00112DOI: https://doi.org/10.1051/bioconf/20213700112