A field experiment was conducted at the Experimental Farm, Hort. Dept., Fac. Agric., Zagazig University during the winter  in 2023/2024. To improve the growth parameters of fenugreek plants, the main factors were examined. First, nitrogen fertilization rates (0.0, 30 and 60 kg N/feddan) were applied as soil drench at two doses. Second, nanomicronutrients named Megro NanoMix (0.0, 0.5 and 1.0 g/litter) were applied as foliar spraying three times per season. The obtained results showed that fertilized fenugreek plants with 60 kg N/feddan significantly enhanced plant height, number of branches per plant, stem diameter, root length, fresh and dry weights of herb per plant, and fresh weight of roots per plant compared with the control and the lowest rate under study. The highest values of plant height, stem diameter, herb fresh weight per plant, and dry weight of roots per plant were recorded with 1.0 g/l of nano-micronutrient fertilizer rate compared with the control. Spraying plants with any rate of nanomicronutrients insignificantly affected root length, herb dry weight, and root fresh weight per plant.  In general, the best combination treatment for improving the growth parameters of Trigonella foenum-graecum plants was 60 kg N/feddan combined with 0.50 g/l of nano-micronutrient fertilizers.