Evaluation the efficiency of phosphate solubilizing bacteria on the availability of phosphate in soil and cotton productivity


Abstract in English

A field experiment was carried out during 2002 at Al-Husainea - Deer Al- Zour to study the effect of PSB (Pseudomonas) or PSB combined with 50%, 25%, 100 % of the recommended phosphorus (P2O5) mineral fertilizer without inoculation on cotton productivity, phosphate uptake . Significant differences in available phosphate were noticed in comparison with the control. These microorganisms were effective in solubilizing of fixing phosphate in soil and fixing phosphate, added to the soil as superphosphate. Significant increasing in cotton yield of inoculating treatments was noticed in comparison with the control.

References used

Alexander, M. 1977. Introduction to Soil Microbiology. Wiley, New York
Barea, J. M.; E.Navarro, and E.Montoya 1976 . Production of plant growth regulators by rhizosphere phosphate solubilizing bacteria. Journal, Appl. Bact. 40:128-134
Bolan, N. S,; Robson, A. D. and Barrow, N, J, 1987. Effects of vesiculararbuscular mycorrhizal on the availability of iron and phosphate to plants. Plant and Soil 99, 401-410

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