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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 2018 - IJCMAS--ICV 2018: 95.39 For more details click here
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2020)
[Effective from January 1, 2020]
For more details click here

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

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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 2018: 95.39
NAAS RATING 2020: 5.38

Int.J.Curr.Microbiol.App.Sci.2018.7(9): 1827-1833
DOI: https://doi.org/10.20546/ijcmas.2018.709.222


Effects of Fertilizer P Additions on Available P, Microbial Biomass - P and Phosphatase Enzyme Activity under Maize (Zea mays L.) in P Rich Acid Soils
T. Lavanya Bai, B.C. Dhananjaya*, M. Dinesh Kumar and K.T. Gurumurthy
Department of Soil Science & Agricultural Chemistry, College of Agriculture, University of Agricultural and Horticultural Sciences, Shivamogga 577204, Karnataka, India
*Corresponding author
Abstract:

A field experiment was carried out at college of Agriculture, Navile, Shivamogga during kharif 2016 to study Effects of fertilizer P additions on available P, microbial biomass - P and phosphatase enzyme activity under maize (Zea mays L.) in P rich acid soils with and without seed treatment. The levels of P @ 0, 30, 45, 60 and 75 kg P2O5 per ha-1with or without PSB seed treatment was tried in a randomized complete block design with three replications and eleven treatments. The results of the experiment indicated that seed treatment with PSB and higher levels of P significantly higher values of available P, saloid-P and Ca-P status in soil were recorded with 75 kg P2O5 per ha-1 with PSB seed treatment at different crop growth stages. Higher values of Al-P, Fe-P, reductant-P, occluded-P, organic-P and total-P fractions were recorded in treatments involving P levels without PSB seed treatments. Treatment receiving 75 Kg P2O5 per ha-1 without PSB seed treatment recorded higher Al-P, Fe-P, reductant-P, occluded-P, organic-P and total-P fraction values. The occurrence of forms of P were in the order of total P > organic P > reductant soluble P >>Fe-P>Al- P > occluded P > saloid P > Ca-P.


Keywords: Phosphorus, Zea mays L., PSB, Maize, Seed treatment, P fraction
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How to cite this article:

Lavanya Bai, T., B.C. Dhananjaya, M. Dinesh Kumar and Gurumurthy, K.T. 2018. Effects of Fertilizer P Additions on Available P, Microbial Biomass - P and Phosphatase Enzyme Activity under Maize (Zea mays L.) in P Rich Acid Soils.Int.J.Curr.Microbiol.App.Sci. 7(9): 1827-1833. doi: https://doi.org/10.20546/ijcmas.2018.709.222