Factors determining rock phosphate solubilization by microorganisms isolated from soil

1996 ◽  
Vol 12 (6) ◽  
pp. 567-572 ◽  
Author(s):  
E. Nahas
Keyword(s):  
Rock Phosphate ◽  
Phosphate Solubilization ◽  
Rock Phosphate Solubilization

scholarly journals ROCK PHOSPHATE SOLUBILIZATION AND ENZYMATIC ACTIVITIES FROM INDIGENOUS BACTERIA ON CASSAVA MILL EFFLUENT CONTAMINATED SOIL

2020 ◽  
Vol 1 (2) ◽  
pp. 37-51
Author(s):  
C. E. Oshoma ◽  
S. O. Nwodo ◽  
I. S. Obuekwe
Keyword(s):  
Acid Phosphatase ◽  
Contaminated Soil ◽  
Rock Phosphate ◽  
Phosphate Solubilization ◽  
Enzymatic Activities ◽  
Available Phosphorus ◽  
Phosphate Solubilizing Bacteria ◽  
Indigenous Bacteria ◽  
Rock Phosphate Solubilization ◽  
Phosphate Solubilizing

The processing of cassava into value-added products is associated with discharge of effluents which contain substances that have adverse effect on the environment. Remediative activity of indigenous bacteria can be stimulated by supplementing effluents with phosphorus. Rock phosphate (RP) solubilization and enzymatic activities from bacteria on the cassava mill effluents (CME) contaminated soil was investigated. Soil mixed with varying concentrations of CME (0, 100, 200, 300, 400, 500 and 600 ml) and 10 g of RP were analyzed on days 0 and 16. Parameters analyzed were changes in pH, heterotrophic bacteria load, phosphate-solubilizing bacteria load, available phosphorus, acid phosphatase, cellulase and urease concentrations. The results showed that the medium containing 400 ml CME contaminated soil had the highest phosphate-solubilizing bacteria load (12.60 ± 2.08 x 106 cfu/ml), available phosphorus (126.00 ± 4.08 mg/kg), acid phosphatase (9.54 ± 0.51 mgN/g/min), cellulase (15.24 ± 0.81 mg/g/6h) and urease concentration (2.15±0.22 mg/g/2h). The control had the lowest phosphate-solubilizing bacteria load and enzymatic activity. Biostimulation of indigenous bacteria to enhance the degradation of cassava mill effluent-contaminated soil, using rock phosphate, showed promising results. This implies that rock phosphate solubilization by indigenous bacteria in CME-contaminated soils could be important for the remediation and reclamation of contaminated lands.

Rock phosphate solubilization by four yeast strains

2012 ◽  
Vol 63 (1) ◽  
pp. 173-178 ◽  
Author(s):  
Chunqiao Xiao ◽  
Ruan Chi ◽  
Xiao Pan ◽  
Feng Liu ◽  
Jiawei He
Keyword(s):  
Rock Phosphate ◽  
Phosphate Solubilization ◽  
Yeast Strains ◽  
Rock Phosphate Solubilization

Rock Phosphate Solubilization in Cattle Slurry

1985 ◽  
Vol 140 (6) ◽  
pp. 449-454 ◽  
Author(s):  
J. Kubát ◽  
B. Novák ◽  
J. Pirkl ◽  
V. Macháček
Keyword(s):  
Rock Phosphate ◽  
Phosphate Solubilization ◽  
Cattle Slurry ◽  
Rock Phosphate Solubilization

Rock phosphate solubilization by immobilized cells of Enterobacter sp. in fermentation and soil conditions

1997 ◽  
Vol 61 (1) ◽  
pp. 29-32 ◽  
Author(s):  
Nikolay Vassilev ◽  
Marcia Toro ◽  
Maria Vassileva ◽  
Rosario Azcon ◽  
Jose Miguel Barea
Keyword(s):  
Rock Phosphate ◽  
Phosphate Solubilization ◽  
Immobilized Cells ◽  
Soil Conditions ◽  
Rock Phosphate Solubilization

Rock phosphate solubilization by Aspergillus niger grown on sugar-beet waste medium

1995 ◽  
Vol 44 (3-4) ◽  
pp. 546-549 ◽  
Author(s):  
N. Vassilev ◽  
M. T. Baca ◽  
M. Vassileva ◽  
I. Franco ◽  
R. Azcon
Keyword(s):  
Aspergillus Niger ◽  
Sugar Beet ◽  
Rock Phosphate ◽  
Phosphate Solubilization ◽  
Rock Phosphate Solubilization

Optimization for rock phosphate solubilization by phosphate-solubilizing fungi isolated from phosphate mines

2008 ◽  
Vol 33 (2) ◽  
pp. 187-193 ◽  
Author(s):  
Chun-Qiao Xiao ◽  
Ru-An Chi ◽  
Xiao-Hui Huang ◽  
Wen-Xue Zhang ◽  
Guan-Zhou Qiu ◽  
...  
Keyword(s):  
Rock Phosphate ◽  
Phosphate Solubilization ◽  
Rock Phosphate Solubilization ◽  
Phosphate Mines ◽  
Phosphate Solubilizing

scholarly journals Optimization of A spergillus niger rock phosphate solubilization in solid‐state fermentation and use of the resulting product as a P fertilizer

2015 ◽  
Vol 8 (6) ◽  
pp. 930-939 ◽  
Author(s):  
Gilberto de Oliveira Mendes ◽  
Nina Morena Rêgo Muniz Silva ◽  
Thalita Cardoso Anastácio ◽  
Nikolay Bojkov Vassilev ◽  
José Ivo Ribeiro ◽  
...  
Keyword(s):  
Solid State ◽  
Solid State Fermentation ◽  
Rock Phosphate ◽  
Phosphate Solubilization ◽  
P Fertilizer ◽  
Rock Phosphate Solubilization
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