%0 Journal Article %T EFFECT OF ZEOL ACTIVATED ZEOLITE DOSES ON PRODUCTIVITY, QUALITY AND PHENOLOGY OF SUNFLOWER IN MIDDLE VOLGA REGION %A Suleymanov, S.R. %A Nizamov , R.. %K sunflower (Helianthus annuus L.), activated zeolite, mineral fertilizers, field germination, yield, oil content, basket structure, climate resistance %J Vestnik of Kazan State Agrarian University %D 2025 %N 20 %P 7 %I Kazan state agrarian University