Unfortunately, Fig. 1 was published with errors. The correct figure is given here:

Fig. 1
figure 1

Relationships between pH, organic acid production and solubilization of calcium phosphate by Aspergillis spp. (a) Aspergillus sp. 1B; (b) Aspergillus sp. 6A., phosphate concentration, (—■—); pH, (—♦—); gluconic acid, (—▵—); malic acid, (—⋄—); oxalic acid, (—□—); citric acid, (—○—)

Full size image

Unfortunately, also the address for the first and third author is incorrect. The correct address is given here:

1Department of Soil and Environmental Sciences, National Chung-Hsing University, Taichung, Taiwan, Republic of China.