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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
IJCMAS is now DOI (CrossRef) registered Research Journal. The DOIs are assigned to all published IJCMAS Articles.
Index Copernicus ICI Journals Master List 2016 - IJCMAS--ICV 2016: 92.3 For more details click here
National Academy of Agricultural Sciences (NAAS) : NAAS Score: *5.38 (2017) [Effective from January 1, 2017]For more details click here
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2017)
[Effective from January 1, 2017]
For more details click here

ICV 2016: 92.3
Index Copernicus ICI Journals Master List 2016 - IJCMAS--ICV 2016: 92.3
For more details click here
journals IJCMAS
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Original Research Articles

PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : editorijcmas@gmail.com / submit@ijcmas.com
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2015: 85.95
NAAS RATING 2017: 5.38

Int.J.Curr.Microbiol.App.Sci.2017.6(3): 929-937
DOI: https://doi.org/10.20546/ijcmas.2017.603.110


A Study on the Distribution of Inorganic P Fractions in Soils of Low and High Available Phosphorus through a Laboratory Incubation Experiment
C. Jemila1*, B. Bakiyathu Saliha2 and S.Udayakumar1
1Department of Soils Science and Agricultural Chemistry, Tamil Nadu Agricultural University, Coimbatore-641003, Tami Nadu, India
2Agricultural Research Station, Aruppukottai-626 107, Virudhunagar District, Tamil Nadu, India
*Corresponding author
Abstract:

A laboratory incubation experiment was conducted during 2013-14 in the post graduate research laboratory of the Department of Soils and Environment at Agricultural College and Research Institute, Madurai to characterize the predominant rice growing soils of Vadipatti block of Madurai district into low and high P availability and to study the phosphorus release pattern and inorganic fractions of phosphorus. The treatments were imposed based on the fertiliser recommendation viz., 150:50:50 Kg N, P2O5, K2O ha-1, Mussoorie rock phosphate @ 224 kg ha-1, farm yard manure @ 12.5 tonnes ha-1 and phosphate solubilizing bacteria (Lignite based phosphate solubilizing bacterium, Bacillus megateriumvar. Phosphaticum PSB-1) @ 2 kg ha-1 in a Completely Randomized Design (CRD). A significant improvement in available P status was noticed with inoculation of P solubilizing bacteria with Mussoorie Rock Phosphate in soils of low and high available P status and the distribution pattern of inorganic fractions at the pre and post incubation period in the soils followed the pattern of Fe-P >Al-P >Ca-P >Saloid-P > Red-P and decreased gradually during the course of incubation period irrespective of the fractions.


Keywords: Phosphorus, Inorganic fractions, Incubation, Release pattern, Mussoorie rock phosphate.
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How to cite this article:

C. Jemila, B. Bakiyathu Saliha and S.Udayakumar. 2017. A Study on the Distribution of Inorganic P Fractions in Soils of Low and High Available Phosphorus through a Laboratory Incubation Experiment.Int.J.Curr.Microbiol.App.Sci. 6(3): 929-937. doi: https://doi.org/10.20546/ijcmas.2017.603.110