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Effects of Carrier Materials and Storage Temperatures on the Viability and Stability of Three Biofertilizer Inoculants Obtained from Potato ( Solanum tuberosum L.) Rhizosphere

Author

Listed:
  • Becky Nancy Aloo

    (Department of Biological Sciences, University of Eldoret, Eldoret P.O. Box 1125-30100, Kenya)

  • Ernest Rashid Mbega

    (Department of Sustainable Agriculture and Biodiversity Conservation, Nelson Mandela African Institution of Science and Technology, Arusha P.O. Box 447, Tanzania)

  • Billy Amendi Makumba

    (Department of Biological Sciences, Moi University, Eldoret P.O. Box 3900-30100, Kenya)

  • John Baptist Tumuhairwe

    (Department of Agricultural Production, College of Agricultural and Environmental Sciences, Makerere University, Kampala P.O. Box 7062, Uganda)

Abstract

Biofertilizer technology continues to be derailed by the short shelf life of inoculants. The present study investigated the suitability of wheat-bran (WB), rice-husks (RH), farmyard-manure (FYM), bagasse (BG), and sawdust (SD) in the formulation of potato-derived Klebsiella grimontii (MPUS7), Serratia marcescens (NGAS9), and Citrobacter freundii (LUTT5) under refrigerated (8 °C) and room (25 ± 2 °C) storage. The physicochemical properties of the materials were assessed before sterilization and introduction of the inoculants and assessment of their viability for 8 months. Most of the physicochemical properties of the materials varied significantly ( p < 0.05). Bagasse supported the maximum growth of MPUS7 (5.331 log CFU g −1 ) under refrigeration and LUTT5 (4.094 log CFU g −1 ) under both conditions. Under room storage, the maximum growth of MPUS7 (3.721 log CFU g −1 ) occurred in WB. Formulations that remained viable under room storage can easily be integrated into existing agricultural distribution systems that lack refrigeration.

Suggested Citation

  • Becky Nancy Aloo & Ernest Rashid Mbega & Billy Amendi Makumba & John Baptist Tumuhairwe, 2022. "Effects of Carrier Materials and Storage Temperatures on the Viability and Stability of Three Biofertilizer Inoculants Obtained from Potato ( Solanum tuberosum L.) Rhizosphere," Agriculture, MDPI, vol. 12(2), pages 1-12, January.
    • Handle: RePEc:gam:jagris:v:12:y:2022:i:2:p:140-:d:729742
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    Cited by:

    1. Hira Safdar & Moazzam Jamil & Azhar Hussain & Bedur Faleh A. Albalawi & Allah Ditta & Abubakar Dar & Ayesha Aimen & Hafiz Tanvir Ahmad & Qudsia Nazir & Maqshoof Ahmad, 2022. "The Effect of Different Carrier Materials on the Growth and Yield of Spinach under Pot and Field Experimental Conditions," Sustainability, MDPI, vol. 14(19), pages 1-15, September.

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