1. Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtze River) Ministry of Agriculture and Rural Affairs/Hubei Provincial Engineering Laboratory for New Fertilizers Huazhong Agricultural University Wuhan China
2. Microelement Research Center Huazhong Agricultural University Wuhan China
3. Soil and Water Research Department Nuclear Research Center Egyptian Atomic Energy Authority Abou Zaabl Egypt
4. Botany Department Faculty of Science Fayoum University Fayoum Egypt
5. Department of Fundamental Sciences University of Quebec at Chicoutimi Chicoutimi Quebec Canada