The chapter "Salinity–mineral nutrient relations in horticultural crops" by S.R. Grattan and C.M. Grieve explores the complex interactions between salinity and mineral nutrition in horticultural crops. The authors emphasize the need for a multidisciplinary approach to understand these interactions, which can affect crop performance through various mechanisms such as nutrient availability, uptake, transport, and partitioning within the plant. They review studies conducted in different environments, including field, soil, and solution cultures, and discuss the impact of salinity on specific nutrients like nitrogen, phosphorus, potassium, calcium, magnesium, and sulfur. The chapter highlights that while salinity can reduce nutrient uptake and accumulation, adding nutrients above optimal levels does not necessarily improve crop yield but can enhance quality. The authors also discuss the role of calcium in mitigating salinity-induced disorders and the importance of using realistic ion ratios in salinity studies. Overall, the chapter underscores the complexity of salinity-nutrient interactions and the need for further research to better understand and manage these interactions in horticultural crops.The chapter "Salinity–mineral nutrient relations in horticultural crops" by S.R. Grattan and C.M. Grieve explores the complex interactions between salinity and mineral nutrition in horticultural crops. The authors emphasize the need for a multidisciplinary approach to understand these interactions, which can affect crop performance through various mechanisms such as nutrient availability, uptake, transport, and partitioning within the plant. They review studies conducted in different environments, including field, soil, and solution cultures, and discuss the impact of salinity on specific nutrients like nitrogen, phosphorus, potassium, calcium, magnesium, and sulfur. The chapter highlights that while salinity can reduce nutrient uptake and accumulation, adding nutrients above optimal levels does not necessarily improve crop yield but can enhance quality. The authors also discuss the role of calcium in mitigating salinity-induced disorders and the importance of using realistic ion ratios in salinity studies. Overall, the chapter underscores the complexity of salinity-nutrient interactions and the need for further research to better understand and manage these interactions in horticultural crops.