Microbial Biofertilizers: Types and Applications

The increased dependency of modern agriculture on excessive synthetic input of chemical fertilizers has caused several environmental problems related to greenhouse effect, soil deterioration, and air and water pollution. Furthermore, there is an imperative need for viable agricultural practices on a global level with reduced energy and environmental problems, for adequate cost-efficient production of food for the increasing human population. Consequently, biofertilizers containing microorganisms like bacteria, fungi, and algae have been suggested as viable solutions for large-scale agricultural practices which not only are natural, ecofriendly, and economical but also maintain soil structure as well as biodiversity of agricultural land. Besides providing nutrient enrichment to the soil, microbial biofertilizers promote plant growth by increasing efficient uptake or availability of nutrients for the plants and by suppressing soilborne diseases. Biofertilizers supplement nutrients mainly by fixation of atmospheric nitrogen, by phosphorus solubilization, and by synthesizing plant growth-promoting substances. The nitrogen-fixing bacteria of the rhizobia and other groups are used for growth promotion of legumes and additional crops. In addition, blue-green algae (BGA) as well as Azolla subsidize in the nitrogen budget of practicable agriculture. Arbuscular mycorrhizal fungi are important for the uptake of phosphorus and several other minerals in many plants. Phosphorus-solubilizing bacteria like Azotobacter and Azospirillum that fix atmospheric nitrogen can increase the solubility and availability of phosphorus to plants and, thus, crop yield. Further, Azospirillum provides additional benefits such as the production of growth-promoting substances, disease resistance, and drought tolerance. Thus, application of microbial biofertilizers is an effective approach in increasing and maintaining the nutrient economy of soil, thereby reducing the use of chemical fertilizers, for a proficient and sustainable agriculture.

This is a preview of subscription content, log in via an institution to check access.

Access this chapter

Subscribe and save

Springer+ Basic €32.70 /Month

Buy Now

Price includes VAT (France)

eBook EUR 213.99 Price includes VAT (France)

Softcover Book EUR 263.74 Price includes VAT (France)

Hardcover Book EUR 263.74 Price includes VAT (France)

Tax calculation will be finalised at checkout

Purchases are for personal use only

Similar content being viewed by others

Role of Microorganisms as Biofertilizers

Chapter © 2021

Fungal Biofertilizers for Sustainable Agricultural Productivity

Chapter © 2020

Efficacy of Biofertilizers: Challenges to Improve Crop Production

Chapter © 2016

References

Author information

Authors and Affiliations

  1. Department of Botany, Hansraj College, University of Delhi, Delhi, India Lebin Thomas & Ishwar Singh
  1. Lebin Thomas
You can also search for this author in PubMed Google Scholar You can also search for this author in PubMed Google Scholar

Editor information

Editors and Affiliations

  1. Department of Botany, Swami Shraddhanand College University of Delhi, New Delhi, India Bhoopander Giri
  2. Amity Institute of Microbial Technology, Amity University, Noida, Uttar Pradesh, India Ram Prasad
  3. College of Horticulture and Gardening, Yangtze University, Jingzhou, Hubei, China Qiang-Sheng Wu
  4. Amity Institute of Microbial Technology, Amity University, Noida, Uttar Pradesh, India Ajit Varma

Rights and permissions

Copyright information

© 2019 Springer Nature Switzerland AG

About this chapter

Cite this chapter

Thomas, L., Singh, I. (2019). Microbial Biofertilizers: Types and Applications. In: Giri, B., Prasad, R., Wu, QS., Varma, A. (eds) Biofertilizers for Sustainable Agriculture and Environment . Soil Biology, vol 55. Springer, Cham. https://doi.org/10.1007/978-3-030-18933-4_1

Download citation

Share this chapter

Anyone you share the following link with will be able to read this content:

Get shareable link

Sorry, a shareable link is not currently available for this article.

Copy to clipboard

Provided by the Springer Nature SharedIt content-sharing initiative