Performance evaluation of maize (Zea mays L.) varieties for growth and yield as influenced by Urea and NPK fertilizers

This field experiment was conducted during the 2021 cropping season at Prince Abubakar Audu University Research and Demonstration farm, Anyigba in Southern Guinea Savana Agro Ecological Zone of Nigeria to determine performance maize varieties under influence NPK 20:10:10 Urea fertilizer application. A Randomized Complete Block Design (RCBD) used with three replications. The treatment consisted levels (0, 60, 120), 120) two [Samaz 52 (OPV) Oba-super-6 (Hybrid)] respectively. Results obtained show that fertilizers application increased growth parameters such as; plant height, days 1st 50% flowering. However, Number leaves/plant, number spikes/plant grain weight/cob not significantly influenced by There were varietal differences spikes/tassel threshing %. consistently produced taller plants, thicker stems, higher leaf area, more spike/tassels than OPV. Application 120kg/ha yield some components as cob length (13.84cm), % (78.61) final (4196.30kg/ha), grains/cob (355.85), area 4 6WAS (307.21 447.28cm) respectively 60kg/ha 0kg/ha. 120kg N/ha 100-seed weight (29.36). out yielded OPV its components. For interactions studied, for emergence, all factors studied had no significant effect (P ≥ 0.05); x V, N, N V ≤ 0.05), 1st, flowering, 0.05). percent, only No. grains/cob, weight, significant.