 | | Dates at UD | Visiting From |
| Dr. Robustiano Alvarez | 1985-1986 | University of Panama
Estafeta Naturales, Panama |
| Dr. Nanek Pasricha | 1987-1988 | Potash Research Institute of India
Haryana, India |
| Professor X. Jiahua | 1988 | Chinese Academy of Sciences
China |
| Dr. Chaim Aharoni | 1989-1990 | Department of Chemical Engineering
Technion-Israel Institute of Technology
Haifa, Israel |
| Dr. Rami Keren | 1992-1993 | Institute of Soil, Water and Environmental Sciences
The Agricultural Research Organization
Bet Dagan, Israel |
| Dr. D.D. Steffens | 1993-1994 | Justus Liebig University
Giessen, Germany |
| Dr. Sala Feigenbaum | 1995 | Institute of Soil, Water and Environmental Sciences
The Agricultural Research Organization
Bet Dagan, Israel |
| Dr. Lynn Katz | 1997 | University of Maine
Orono, Maine
(Currently: University of Texas) |
| Dr. Avi Shaviv | 1998-1999 | Department of Civil and Environmental Engineering
Technion-Israel Institute of Technology
Technion City, Israel |
| Dr. Ming Wang | 2000 | Department of Agricultural Chemistry
National Taiwan University |
| Dr. Daniela Businelli | 2001 | University of Perugia
Perugia, Italy |
|
Dr. Xionghan Feng |
2007-2008 |
Huazhong Agricultural University
Wuhan, China |
|
Dr. Tingqiang Li |
2009-2010 |
Zhejiang University
Hangzhou, China |
 |
Dr. Marcelo Alves |
2009-2010 |
Luiz de Queiroz College of Agriculture
São Paulo, Brazil |
|
Dr. Yujun Wang |
2010-2011 |
Institute of Soil Science, Chinese Academy of Science
Nanjing, China |
|
Dr. Xionghan Feng |
2011-2012 |
Huazhong Agricultural University
Wuhan, China |
 |
Dr. Alejandra Jara |
2010-2012 |
Universidad de La Frontera
Temuco, Chile |
|
Dr. Yujun Wang |
2013 |
Institute of Soil Science, Chinese Academy of Science
Nanjing, China |
|
Dr. Chuanjiang Tao |
2013 |
Institute for the Control of Agrochemicals,Ministry of Agriculture
Beijing, China |
|
Dr. Dan Liu |
2014-2015 |
College of Environment and Resources, Zhejiang Agricultural & Forestry University
Hangzhou, China |
|
Dr. Yang Chen |
2014-2015 |
School of Earth Sciences & Engineering, Nanjing University
Nanjing, China |
|
Dr. Hao-Jie Cui |
2015-2016 |
Chinese Academy of Sciences
Xiamen City, China |
|
Dr. Balwant Singh |
2017 |
The University of Sydney
Sydney, Australia |
