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Potassium-Solubilizing Bacteria (KSB): A Microbial Tool for K-Solubility, Cycling, and Availability to Plants

  • Indra Bahadur
  • Ragini Maurya
  • Pratiti Roy
  • Ashok Kumar
Chapter

Abstract

The potassium (K) requirement of crops is fulfilled solely from the soil solution form. About 98% of the K is fixed in the soil system whereas only 2% is readily available to plants. Many of the efficient microbes have a key role in solubilizing the unavailable form of K to stimulate crop yield. The lack of good-quality K-mineral has hindered the manufacturing of K-fertilizers in India; hence, the entire quantity of K-fertilizers is imported. This situation warrants a call for alternative means and technology to cater to the growing need of K requirements of crops and restore soil fertility. This book chapter will be helpful to display the indigenous sources of potassium as a substitute for costly imported K-fertilizers in time of need while discussing the concept of solubilization of native K-minerals. In this chapter, the main emphasis is a brief introduction of the significant scenario of potassium, past research work carried out in India and abroad, and summarizing the role of the latter of significant importance to soil scientists, agricultural microbiologists, and students interested in the area of soil microbiology who may work on the microbial consortium for solubilization of K to enhance crop production.

Keywords

K-solubilizing Agricultural soils Crop productivity 

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Copyright information

© Springer Nature Singapore Pte Ltd. 2019

Authors and Affiliations

  • Indra Bahadur
    • 1
  • Ragini Maurya
    • 2
  • Pratiti Roy
    • 3
  • Ashok Kumar
    • 3
  1. 1.Soil and Land Use Survey of India, Ministry of Agriculture and Farmers WelfareGOI, Kolkata CentreKolkataIndia
  2. 2.Department of HorticultureInstitute of Agricultural Sciences, Banaras Hindu UniversityVaranasiIndia
  3. 3.Department of Genetics and Plant Breeding (Plant Biotechnology), Rajiv Gandhi South CampusBanaras Hindu UniversityMirzapurIndia

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