Factors Contributing to Development of Salinity Problems in Turf

Introduction Professional turfgrass managers in many parts of Arizona are confronted with a growing number of management challenges related to excess levels of salinity and/or sodium in soils. The consequences of excess salinity and/or sodium are poor turf performance, reduced water infiltration and the appearance of a new turf disease, rapid blight (Labyrinthula terrestris). Salinity related problems could be attributed to factors such as limited water duties or the use of reclaimed water; however, a detailed assessment of the current situation suggests that several factors contribute to the current problems. This report reviews several of the more important factors contributing to salinity related problems in Arizona turfgrass systems, and then concludes with a brief discussion of possible solutions to these problems.