Improving Phosphorus Use through Co-inoculation of Vesicular Arbuscular Mycorrhizal Fungi and Phosphate-Solubilizing Bacteria in Maize in an Acidic Alfisol

    Suri, V K and Choudhary, Anil K. and Chander, G and Verma, T S and Gupta, M K and Dutt, N (2011) Improving Phosphorus Use through Co-inoculation of Vesicular Arbuscular Mycorrhizal Fungi and Phosphate-Solubilizing Bacteria in Maize in an Acidic Alfisol. Communications in Soil Science and Plant Analysis, 42 (18). pp. 2265-2273. ISSN 0010-3624

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    Abstract

    Performance of three vesicular arbuscular mycorrhizal (VAM) fungi cultures and a phosphate-solubilizing bacteria (PSB) culture alone or in combination with or without 75% of the recommended P2O5 dose based on soil-test crop response model was examined in maize in a phosphorus (P)-deficient acidic Alfisol in a glasshouse pot experiment. Sole application of VAM besides co-inoculation with PSB (Pseudomonas striata) and inorganic P stimulated mycorrhizal root colonization. Sole application of PSB, VAMT (Glomus intraradices), and VAMI (Glomus mosseae) as well as co-inoculation of VAM with PSB significantly improved crop productivity besides grain protein content, thus indicating a synergistic interaction between VAM and PSB. Application of VAMT or VAMI + PSB + 75% P2O5 remained at par with sole application of 100% P2O5 dose with regard to productivity, nutrient uptake, and soil fertility status (particularly P), thus indicating economization of fertilizer P to the tune of about 25% without compromising crop productivity and soil fertility in an acidic Alfisol.

    Item Type: Article
    Divisions: UNSPECIFIED
    CRP: UNSPECIFIED
    Uncontrolled Keywords: Glomus mosseae , maize, phosphate-solubilizing bacteria, productivity, soil fertility, vesicular arbuscular mycorrhizae
    Subjects: Others > Soil Science
    Others > Fertilizer Applications
    Depositing User: Mr Siva Shankar
    Date Deposited: 10 Feb 2012 05:02
    Last Modified: 16 Sep 2013 07:35
    URI: http://oar.icrisat.org/id/eprint/5435
    Official URL: http://dx.doi.org/10.1080/00103624.2011.602451
    Projects: UNSPECIFIED
    Funders: UNSPECIFIED
    Acknowledgement: The authors are thankful to the Indian Council of Agricultural Research, New Delhi, India, for providing financial assistance for this study under the World Bank–funded National Agricultural Technology Project (NATP). The authors are also thankful to the Centre for Mycorrhizal Research, the Energy and Resources Institute, New Delhi, for supplying VAM cultures and providing valuable technical guidance.
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