Fig. 5 Treatment effects on N2O emission from fertilized plots (n = 3, each treatment) in Exp. 2. Treatment codes are; CT, control; NH4H, high NH4; NH4L, low NH4; NO3H, high NO3; NO3L, low NO3. CT plots received no nutrient addition to Day 11, while all other treatments consisted of a liquid phase application of 2.5 cm. High and low fertilization levels are 150 and 75 kg N ha-1, respectively. Following N2O flux determinations on Day 11, all plots (including CT) were amended with 2.5 cm of deionized water and N2O emission was assessed at Day 11.12. Error bars represent ±1 SD. Fluxes followed by the same letter on each sampling date do not differ significantly by Tukey's HSD
