1. Microelement Research Center, College of Resources and Environment, Huazhong Agricultural University, Wuhan, Hubei, 430070, China
2. College of Resources and Environment, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China
3. Agricultural Botany Department, Faculty of Agriculture, Ain Shams University, Cairo, 11241, Egypt
4. Department of Soil Sciences, Faculty of Agriculture, Ain Shams University, Cairo 11241, Egypt