Click for new scientific resources and news about Corona[COVID-19]

Paper Information

Journal:   IRANIAN JOURNAL OF SOIL AND WATERS SCIENCES   2003 , Volume 17 , Number 2; Page(s) 162 To 176.
 
Paper: 

DISTRIBUTIONS OF PHOSPHATE SOLUBILIZING MICROORGANISMS IN SOME SOILS OF GILAN PROVINCEIN

 
 
Author(s):  FALAH NOSRATABAD A.R., RAHIMIAN H., SALEH RASTIN N., MALAKOUTI M.J.
 
* 
 
Abstract: 
Fifty soil samples were collected from various locations in Gilan Province during 2001. Total populations of the bacteria, phosphate solubilizing bacteria (PSB), the total counts for fungi as well as phosphate solubilizing fungi (PSF) were determined in all 50 soil samples. Total bacterial counts varied from 10^6 to 10^9 cells /g soil, with an average value of 5.82 x 10^7. The PSB populations ranged from 0 to 10^7 cells/g soil with some 94% of the samples containing PSB organisms. The soil sample from Tutestan region contained the greatest PSB population equaling to 3.85 x 106 Cells/_ soil. The average ratios of PSB to total bacteria and to total phosphate solubilizing microorganisms were 3.98% and 88.04%, respectively. The total fungi counts varied from 10^2 to 10^6 cells/g soil, with the lowest count of 6.4 x 10^2 cells/g soil coming from a forest area, and the greatest population of 2.73 x 10^6 cells/ g soil coming from the fermenting residues of a tea processing plant. The average value for total fungi populations was calculated to be 1.92 x 10^5 cells/ g soil in the collected samples. The total fungi population in 82% of the samples was below this average value. Eighty six percent of the soil samples contained PSF ranging up to 10^6 cells/g. The greatest PSF population of 1.8 x 10^5 cells/g was also found in the fermenting residues of the tea processing plant. The average ratios of PSF to total fungi counts and the total phosphate solubilizing organisms were 15.3% and 9.96%, respectively. Bacteria comprised the greatest percentage of phosphate solubilizing microorganisms in the soil samples examined.
 
Keyword(s): KEYWORDS: PHOSPHOROUS, PHOSPHATE SOLUBILIZING MICROORGANISMS, GILAN
 
References: 
  • ندارد
 
  Persian Abstract Yearly Visit 77
 
Latest on Blog
Enter SID Blog