Impact of sprinkler irrigation management on the Del Reguero river (Spain) II: Phosphorus mass balance

► Phosphorus is one of plant nutrients whose enrichment in surface water leads to eutrophication. ► P source and transport factors detection at field and watershed scales was performed. ► Detailed water quality monitoring helps to improve knowledge in phosphorus dynamic. ► Agricultural practices such as irrigation and fertilization was also indentified. ► The phosphorus mass balance is the key to identify the relevance of P fertilizers.