Research Article

Application of Potential Phosphate-Solubilizing Bacteria and Organic Acids on Phosphate Solubilization from Phosphate Rock in Aerobic Rice

Figure 4

Effect of oxalic acid (OA) on soil pH. Bars indicate standard error, .
272409.fig.004a
(a) Noninoculated without PR 
272409.fig.004b
(b) PSB inoculated without PR
272409.fig.004c
(c) Noninoculated with PR
272409.fig.004d
(d) PSB inoculated with PR