Growth and yield performances of three maize cultivars (Zea mays L.) as influenced by time of N-fertilizer application

The sufficient supply of N-fertilizer in maize crop is imperative for optimum performance. However, timing application this nutrient may create variation yield performances the crop. A field experiment was conducted during 2021 raining season to investigate effect time on growth and three cultivars at Prince Abubakar Audu University Research Demonstration farm, Anyigba. experiments which were laid a Randomized Complete Block Design (RCBD) consisted 9 treatment combination; 3 [(Oba-Super 6 (hybrid), Samaz-52 (OPV) Local cultivar] stages N- fertilizer (3WAS, tasseling silking). Time does not significantly influence (P ≥ 0.05) number leaves/plant, plant height 4 6WAS, days first flowering, 50% flowering cob length cobs/plant. 3WAS produced ≤ higher biomass silking stage improved seeds per cob, 100-seed weight final grain followed by stage. Similarly, Varieties had no significance leaf area except components. displayed earlier respectively. Oba-super-6 (hybrid) seeds/cob. (3398.16 kg/ha) Cultivar (2537.05 Oba-Super recorded least (1851.86 kg/ha). Finally, it appears that nitrogen gave as high its’ weeks after sowing. Therefore, two split doses (first top dress stage) highly recommended planting be promising than Oba super-6 local variety.