Fig. 2
The effects of rainfall, silicon application (Si) and simulated grazing (Clipping) on soil silicon concentrations (a), Microlaena stipoides root and shoot silicon (b) and carbon (c) concentrations and negative correlations (± 95% CI) between concentrations of silicon and carbon (d). Significance indicated by *(P < 0.05), **(P < 0.01), ***(P < 0.001). Values of bars are means (± SE). Bars with the same letters were not significantly different (P < 0.05) according to Tukey's post hoc tests