Fig. 1.
Bacterial total density (a) and tricalcium phosphate solubilizing bacterial Density (b) in the rhizosphere of C. papaya L. plants grown in conventional or organic system (n = 4). n.s. means are not significantly by Student’s t test at P ≤ 0.05. *** Means are statistically different by Student’s t test at P ≤ 0.001