Effects of Soil Environment on Field Efficacy of Microbial Inoculants

  • Ekta Khare
  • Naveen K. Arora


Although many microorganisms show good performance in specific trials, this is often not translated into consistent, effective plant growth promotion and biocontrol in diverse field situations. The key factors involved in the lack of success are rapid decline in the size of populations of active cells to levels ineffective to achieve the objective and variable production of required metabolites or poor colonization, following the introduction into soil. The physical, chemical, and physicochemical nature of soil and its indigenous microorganisms and predators influence the microbial population both quantitatively and qualitatively. Soil abiotic factors (e.g., texture, pH, temperature, and moisture) exert their (direct) effect on inoculant population dynamics by imposing stresses. On the other side, trophic competitions and antagonistic/synergic and predatory interactions with the resident microbial and fauna populations determine the field efficiency of inoculants. The aim of this review is to throw light on different soil environmental conditions that affect the survival of inoculated microbial strains in the field. A proper characterization of target soils and rhizospheres as habitats for introduced microbes is a key to the development of bioformulations that support beneficial microorganisms in the soil.


Microbial Community Microbial Biomass Soil Microbial Community Osmotic Potential Arbuscular Mycorrhiza 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.



EK is grateful to Vice Chancellor, Chhatrapati Shahu Ji Maharaj University, Kanpur, India, for providing facilities and support while NKA to VC, BBA University, Lucknow.


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Copyright information

© Springer India 2015

Authors and Affiliations

  1. 1.Department of Microbiology, Institute of Biosciences and BiotechnologyChhatrapati Shahu Ji Maharaj UniversityKanpurIndia
  2. 2.Department of Environmental MicrobiologyBabasaheb Bhimrao Ambedkar UniversityLucknowIndia

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