The effect of Cu, Fe, Mn and Zn on growth characteristics (plant height, leaf number, leaf area index and fresh stalk yield of maize were studied. Each micronutrient was applied at the rate of 5 kg ha-1 alone as well as in all possible combinations. Combined application of Fe, Mn and Zn increased plant height, leaf number plant-1, leaf area index and fresh stalk yield considerably over rest of the treatments. While the treatments containing Cu, adversely affected these parameters. This indicated that the addition of Cu to the test soil seems to have toxic effect on maize crop as it already contained adequate amount of available copper.