TY JOUR TI Monitoring of agroecological characteristics of agricultural soils of the forest-steppe zone of the Central Region of Russia KW organic matter KW fertility KW fertilizers KW melioration KW chernozem KW productivity KW erosion KW macronutrients KW microelements JO INTERNATIONAL AGRICULTURAL JOURNAL AU Surinov, A.V. AU Chetverikova, N.S. PY 2024 IS 0 PB Electronic science