N-levels (kg ha-1) Plant density (plants ha-1) Mean 65000 80000 95000 0 448 439 411 433c 120 494 482 418 465bc 150 523 484 467 492b 180 545 528 519 531a 210 561 551 531 548a Mean 515a 497ab 470b

LSD(0.05) for Nitrogen=37.317; LSD(0.05) for Plant density=28.906. Means of the same category followed by different letters are significantly different at 0.05 level of probability using LSD test.

Table 12: Grains ear-1 of maize as affected by nitrogen levels and plant population.