Scheffer, F. and P. Schachtschabel (1992)Lehrbuch der Bodenkunde, Ferdinand Enke Verlag, Stuttgart, Germany.
Beever, R. E. and D. J. W. Burns (1980) Phosphorus uptake, sotorage and utilization by fungi.Adv. Bot. Res. 8: 127–219.
Moghimi, A. and M. E. Tate (1978) Does 2-ketogluconate chelated calcium in the pH in the pH range 2.4 to 6.4.Soil Biol. Biochem. 10: 289–292.
Suh, J.-S., Y.-S. Song, and K.-S. Kim (1995) Distribution of phosphate fractions in greenhouse soils located on southwest region in Korea.J. Kor. Soc. Soil Sci. 28: 270–277.
Park, B.-G., T.-H. Jeon, Y.-H. Kim, and Q.-S. Ho (1994) Status of farmers application rates of chemical fertilizer and farm manure for major crops.J. Kor. Soc. Soil Sci. 27: 238–246.
Park, B.-G., J.-H. Yoon, and Q.-S. Ho (1998) Comparison of several methods for the determination of available phosphorus in the soils for corn and rice.J. Kor. Soc. Soil Sci. 31: 1–8.
Suh, J.-S., S.-K. Lee, K.-S. Kim, and K.-Y. Seong (1995) Solubilization of insoluble phosphate byPseudomonas putida, Penicillium sp. andAspergillus niger isolated from Korean soils.J. Kor. Soc. Soil Sci. 28: 278–286.
Raj, J., D. J. Bagyaraj, and A. Manjunath (1981) Influence of soil inoculation with vesicular-arbuscular mycorrhiza and a phosphate dissolving bacterium on plant growth and32PTAKE.Soil Biol. Biochem. 13: 105–108.
Leheurte, F. and J. Berthelin (1988) Effect of a phosphate solubilizing bacteria on maize growth and root exudation over four levels of labile phosphorus.Plant Soil 105: 11–17.
Kim, K.-Y. (1997) Hydroxyapatite solubilization and organic acid production byEnterobacter agglomerans.J. Kor. Soc. Soil Sci. 30: 189–195.
Varsha, N. and H. H. Patel (2000)Aspergillus aculeatus as a rock phosphate solubilizer.Soil Biol. Biochem. 32: 559–565.
Louw, H. A. and D. M. Webley (1959) The bacteriology of the root region of the oat plant grown under controlled pot culture conditions.J. Appl. Bacteriol. 22: 216–226.
Alexander, M. (1977)Introduction to Soil Microbiology. John and Sons, New York, USA.
Sperber, J. I. (1958) The incidence of apatite-solubilizing organisms in the rhizosphere and soil.J. Agric. Res. 9: 778–781.
Shan, N. and P. Jelen (1990) Survival of lactic acid bacteria and their lactases under acidic conditions.J. Food Sci. 55: 506–509.
El-Gibaly, M. H., F. M. El-Reweiny, M. Abdel-Nasser, and T. A. El-Dahtory (1977) Studies on phosphate-solubilizing bacteria in soil and dissolvers and their morphological grouping.Zlb. Bakt. II. Abt. Bd. 132: 240–244.