Figure 2
From: Disentangling the influence of earthworms in sugarcane rhizosphere
N2O concentration belowground (15 cm depth) monitored along the experiment.
Panel (a) indicates the accumulated mean of N2O concentrations in pots with earthworm (EW+) and without earthworms (EW−) (Levene’s test, F > 0.05; Shapiro-Wilk’s test, p < 0.05; Kruskal-Wallis, p-value = 0.04). Panel (b) indicates 22 values (x-axis) of N2O means collected along the experiment (217 days) according to the date of sampling. The black line represents the values obtained in the pots with earthworms (EW+), and the gray line represents the values obtained in the pots without earthworms (EW−).
