Contamination Time Effect on Plant Available Fractions of Cadmium and Zinc in a Mexican Clay Loam Soil

Muhammad Ehsan, Polile Augustine Molumeli, Vicente Espinosa Hernandez, Alejandro Baeza Reyes, Jesus Perez Moreno, Marcos Soto Hernandez, Enrique Ojeda Trejo, David Jaen Contreras, Alejandrina Ruiz Bello and Edmundo Robledo Santoyo

Journal of Applied Sciences 7 ( 16 ): 2380 - 2384 , 2007