Fig. 1From: Crop management as a driving force of plant growth promoting rhizobacteria physiologyBacterial 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 ≤ 0.001Back to article page