Effect of Sewage Sludge And Potassium On Some Micronutrient Concentration And Translocation in Maize Plant

A pot experiment was conducted in a completely randomized design with three replications to investigate the effect of sewage sludge and K on maize yield and micronutrients concentration and prui itioning in maize plants. Treatments included four sewage sludge (0, 2, 4, and 8%) and four K levels (0, 40, 80, and 120 mg K kg-1 soil). Results showed that shoot diy weight, Cd, and micronutrient concentration (Fe, Zn, Cu, and Mn) in maize plant increased significantly with application of sewage sludge as compru·ed to control. Translocation factor (TF) for Cd, Fe, Mn, and Cuwere<1, indicating that these nutrients content were higher in roots than shoots. In contrast, Zn concentration was much higher in maize shoots (TF>l).