Volume 03 highlights into the intricate world of soil salinity and alkalinity, addressing the challenges posed by salt-affected soils and the measures to remediate such stressed environments. Salt-affected soils, characterized by high levels of soluble salts, pose significant obstacles to agricultural productivity, ecosystem sustainability, and global food security. In this volume, we explore the criteria used to classify salt-affected soils, including electrical conductivity (EC), sodium adsorption ratio (SAR), and exchangeable sodium percentage (ESP). By understanding the indicators of soil salinity and alkalinity, readers gain insights into the extent and severity of soil stress and the potential impacts on soil quality and crop health. The importance of addressing soil salinity and alkalinity cannot be overstated, as these conditions can have far-reaching consequences for global food production. Saline soils can inhibit nutrient uptake by plants, reduce water availability, and induce physiological stress, leading to reduced crop yields and economic losses for farmers. Alkaline soils, characterized by high pH levels, can further exacerbate nutrient deficiencies and hinder plant growth, particularly for acid-sensitive crops. By examining the impacts of salt-affected soils on global food production, we gain a deeper appreciation for the urgency of addressing these soil stresses and promoting sustainable land management practices.In this volume, we also explore the measures available to remediate salt-affected soils and restore soil fertility and productivity. From leaching and drainage to soil amendments and crop selection, a range of strategies can be employed to mitigate the impacts of soil salinity and alkalinity and promote soil health and resilience. By integrating scientific knowledge with practical solutions, researchers, policymakers, and practitioners can develop tailored approaches to address salt-affected soils, fostering sustainable agriculture and food security for future generations.