International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2019)
[Effective from January 1, 2019]
For more details click here

ICV 2018: 95.39
Index Copernicus ICI Journals Master List 2017 - IJCMAS--ICV 2018: 95.39
For more details click here

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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
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Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2018: 95.39
NAAS RATING 2020: 5.38

Int.J.Curr.Microbiol.App.Sci.2020.9(2): 1735-1756

Opportunities for Mobilizing Recalcitrant Phosphorus-A Review
Narendra Kumar Yadav1* and Rajat Kumar Parit2*
Department of Soil Science, Assam Agricultural University, Jorhat – 785013, India
*Corresponding author

Phosphorus is perhaps, amongst all the plant nutrients, the one with the most limited bioavailability in soils (approximately 6% of total soil P is readily available (Bray’s & Olsen’s P). 80 % of phosphorus is fixed by primary minerals, precipitate, adsorbed or organically complex form. Phosphorus fertilizer is usually applied in excess of plant requirement and accumulates in soils. As soils are complex and diverse chemical, biochemical and biological systems, strategies to access recalcitrant soil P are often inefficient, case specific and inconsistently applicable in different soils. Under acidic condition, amendment (pressmud & lime) increases the availability of phosphorus. Organic matter application in soil decreases the Al-P, Fe-P &Ca-P in soil and increase available P in soil solution. The application of phytase in combination with manure substantially improves soil biological activities as well as better nutrient supply to crop. Finding a near universal or at least widely applicable solution to the inefficiency in agricultural P use by plants is an important unsolved problem that has been under investigation for more than half a century.

Keywords: Recalcitrant phosphorus, Phosphorus mobilization, Phytase, Pressmud, Soil enzyme activity
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How to cite this article:

Narendra Kumar Yadav and Rajat Kumar Parit. 2020. Opportunities for Mobilizing Recalcitrant Phosphorus- A Review. Int.J.Curr.Microbiol.App.Sci. 9(2): 1735-1756. doi: