Fig. 3. The (a) N₂ and (b) N₂O fluxes from the Grumosol soil during the laboratory experiment. The N₂O fluxes are shown for both field-capacity and saturation moisture contents, whereas the N₂ fluxes are shown for ¹⁵N labeled NO₃ saturated treatment. Data represent means and standard deviations (n = 3 and 6 for N₂ and N₂O, respectively).