Research Article
Residual Effect of Sewage Sludge on Soil and Several Yield Parameters of Zea mays
Department of Botany, Faculty of Science, Alexandria University, Postal Code 21511, El-Shathy, Alexandria, Egypt
F.K. Sherif
Department of Soil and Water Science, Faculty of Agriculture, Alexandria University, Postal Code 21526, El-Shathy, Alexandria, Egypt
H. El-Atar
Alexandria University, El-Shathy, Alexandria, Egypt
H. Ez-Eldin
Alexandria University, El-Shathy, Alexandria, Egypt