How do nutrients from fertilizing lawns affect the health of the soil?

http://docs.google.com/viewer?a=v&q=cache:oiYQ8NNdzD4J:extension.usu.edu/files/publications/factsheet/HG_H_04.pdf+nutrients+fertilizing+lawns&hl=en&gl=us&pid=bl&srcid=ADGEEShtyyrF9H4vla1zKYeO6Lhbj0eerqf4DjTdX0a6JBvQQWg-76QPBkuI2suZwcPt686LNq8-_nS0RCI5njEl_HGChdvYmlFbAtds3C48_v98m5N6WYystlI_7ei0RXLh1Bg4U190&sig=AHIEtbRy_fZjwk_pjkUfw2EIVRGxE5MPvw

http://www.clemson.edu/extension/hgic/plants/landscape/lawns/hgic1201.html