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Fig. 3. (A) Fluxes of N2O-N from perennial ryegrass; (B) average soil temperature at 5 cm among plots and air temperature at 2 m; and (C) average soil water filled porosity (WFP) at 5 cm among plots from late October 2003 to mid April 2004, Day of Year (DOY) 301, 2003 to DOY 111, 2004. Data for WFP are presented as daily and soil and air temperatures as 7-d averages. Vertical dashed lines represent fertilization dates. Symbols (x) along the abscissa in (A) indicate significant differences between at least 2 treatments (P < 0.05) and plus (+) indicate significant differences between one and the other 2 treatments.
