Fig. 2. Biomass production of oat from 1999 to 2001 after manure application in May 1999 at Palmer, Alaska. Values with the same letter were not significantly different with LSD 5%. Control = no fertilizer or manure (average of Control, Water1, and Water2); F50 = 50 kg N ha^–1 as fertilizer; F100 = 100 kg N ha^–1 as fertilizer; F200 = 200 kg N ha^–1 as fertilizer; L100 = 100 kg N ha^–1 as liquid cattle manure; L200 = 200 kg N ha^–1 as liquid cattle manure; S100 = 100 kg N ha^–1 as solid cattle manure; and S200 = 200 kg N ha^–1 as solid cattle manure.