Effect of lead and varying organic materials on micro-nutrient concentration of maize (Zea mays L.)

An experiment was conducted on sandy loam soil (Typic Ustochrepts) in the screen house in order to evaluate the impact of lead on micronutrient concentration of maize plant in soil amended with different organic materials. Results of the experiment indicated decrease in Zn concentration of maize shoot with addition of Pb in soil. Increasing Pb level in soil decreased Cu content in plants. The Fe and Mn concentration of shoot increased with the addition of Pb level in soil. Organic carbon application enhanced Zn and Fe concentration while it reduced Cu and Mn content in maize shoot. Zinc concentration was highest in plants grown in sewage sludge amended soil.