N-levels (kg ha-1) Plant density (plants ha-1) Mean 65000 80000 95000 0 1726 1929 1755 1803 c 120 1678 2467 2158 2101 b 150 2383 2917 2083 2461 a 180 2325 2675 2425 2475 a 210 2957 2767 2295 2673 a Mean 2214 b 2551 a 2143 b

LSD(0.05) for Nitrogen=335.31; LSD(0.05) for Plant density=259.73. Means of the same category followed by different letters are significantly different at 0.05 level of probability using LSD test.

Table 15: Grain yield (kg ha-1) of maize as affected by nitrogen levels and plant population.