S. K. Gupta, PhD, is an INAE Distinguished Professor at the Central Soil Salinity Research Institute, Karnal, Haryana, India. He has served as Head of the Division of Drainage and Water Management, Head of the Division of Irrigation and Drainage Engineering, Head of the Indo-Dutch Network Project, and Project Coordinator of the All India Network Project on Use of Saline Water in Agriculture at CSSRI, Karnal, India. He was also a visiting scientist at the US Salinity Laboratory, California, and the International Institute for Land Reclamation and Improvement, the Netherlands. Dr. Gupta has published several books, 130 peer-reviewed papers, and over 100 technical, popular articles, book chapters, and bulletins. He is currently the Chief Editor of the Journal of Water Management.

Megh R. Goyal, PhD, PE, is a Retired Professor in Agricultural and Biomedical Engineering from the General Engineering Department in the College of Engineering at University of Puerto Rico-Mayaguez Campus. He has worked as a Soil Conservation Inspector and as a Research Assistant at Haryana Agricultural University and Ohio State University. A prolific author and editor, he has written more than 200 journal articles and textbooks and has edited over 50 books.

Anshuman Singh, PhD, is currently working as a scientist at the ICAR-Central Soil Salinity Research Institute, Karnal, Haryana, India. He has published research papers, book chapters, technical/popular articles, and epublications. He has made several presentations at professional conferences and has made significant editorial contributions to key R&D documents of the Central Soil Salinity Research Institute.

Nomenclature and Reclamation of Sodic (Alkali) Soils Using Gypsum: A Review on Historical Perspective