TY JOUR TI MONITORING OF THE DEVELOPMENT OF WINTER WHEAT PLANTS ON LEACHED CHERNOZEM USING NON–INVASIVE AND TRADITIONAL METHODS FOR DETERMINING THE NITROGEN CONTENT OF SOIL – PLANTS KW . JO INTERNATIONAL AGRICULTURAL JOURNAL AU Sitnikov, V.N. AU Esaulko, A.N. AU Ustimenko, E.A. AU Pis'mennaya, E.V. AU Kotova, A.S. PY 2024 IS 7 PB Electronic science