TY JOUR TI WAYS TO INCREASE THE EFFICIENCY OF THE CROP PRODUCTION SECTOR BY AGRICULTURAL PRODUCERS KW commodity producer KW efficiency KW profitability KW land use KW competitiveness KW crop production JO MOSCOW ECONOMIC JOURNAL AU Dolmatova, O.N. AU Scherba, V.N. AU Chernuha, A.A. PY 2025 IS 10 PB Electronic science