TY JOUR TI IMPROVING THE EFFICIENCY OF CROP PRODUCTION KW controlling KW agrochemical service KW economic sustainability KW functions of the agrochemical service KW competencies of employees of the agrochemical service KW tools for the implementation of controlling JO MOSCOW ECONOMIC JOURNAL AU Zhdanov, V.Y. AU Makarova, N.V. AU Sidorova, T.A. PY 2024 IS 9 PB Electronic science