Figure 2
From: Edaphic factors and plants influence denitrification in soils from a long-term arable experiment
Gene abundance from qPCR at the end of the experiment, pooling all treatments for each soil of origin (n = 12); letters denote significantly different values within each set of genes (P = 0.05) according to Tukey’s post-hoc test in ANOVA; s.e.d. = standard errors of difference of means; note that 16S and nirK are plotted as 10–9, the other genes as 10–6 copies g−1 dw soil.
