Properly managed native bluejoint grass [Calamagrostis canadensis (Michx.) Beauv .], the dominant grass on the Kenai Peninsula (Laughlin et al. 1984), is important for supplying supplemental forage for winter feeding of livestock. This 11-year study was undertaken to determine responses of native blue joint to two rates of nitrogen (N) supplied by ammonium nitrate (AN) , urea, and two rates of phosphorus (P) on Kachemak silt loam at two locations on the lower Kenai Peninsula.