1. Soil Sciences Department, College of Food & Agricultural Sciences, King Saud University, Riyadh, Kingdom of Saudi Arabia
2. Department of Soils and Water, Faculty of Agriculture, Assiut University, Assiut, Egypt
3. Korea Biochar Research Center & Department of Biological Environment, Kangwon National University, Chuncheon, South Korea
4. Department of Soil Science and Soil Water Conservation, Pir Mehr Ali shah, Arid Agriculture University, Rawalpindi, Pakistan
5. Industrial Psychology, College of Education, King Saud University, Riyadh, Kingdom of Saudi Arabia