TY JOUR TI Influence of growth regulators based on natural humic substances on the competitiveness of plants of different potato varieties in the forest-steppe zone of the Chechnya Republic KW domestic potato varieties KW non-target pests in agrocenoses KW weeds KW diseases KW pests KW humic-based growth regulators KW yield losses KW productivity JO INTERNATIONAL AGRICULTURAL JOURNAL AU Magomadov, A.S. AU Okazova, Z.P. AU Titova, L.A. PY 2025 IS 0 PB Electronic science