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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.
