Skip to main content

Microbial Biofertilizers: Types and Applications

  • Chapter
  • First Online:
Biofertilizers for Sustainable Agriculture and Environment

Part of the book series: Soil Biology ((SOILBIOL,volume 55))

Abstract

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

Chapter
USD 29.95
Price excludes VAT (USA)
  • Available as PDF
  • Read on any device
  • Instant download
  • Own it forever
eBook
USD 219.00
Price excludes VAT (USA)
  • Available as EPUB and PDF
  • Read on any device
  • Instant download
  • Own it forever
Softcover Book
USD 279.99
Price excludes VAT (USA)
  • Compact, lightweight edition
  • Dispatched in 3 to 5 business days
  • Free shipping worldwide - see info
Hardcover Book
USD 279.99
Price excludes VAT (USA)
  • Durable hardcover edition
  • Dispatched in 3 to 5 business days
  • Free shipping worldwide - see info

Tax calculation will be finalised at checkout

Purchases are for personal use only

Institutional subscriptions

References

  • Abd El-Lattief EA (2016) Use of Azospirillum and Azobacter bacteria as biofertilizers in cereal crops: a review. IJREAS 6:36–44

    Google Scholar 

  • Alley MM, Vanlauwe B (2009) The role of fertilizers in integrated plant nutrient management. International Fertilizer Industry Association, Paris, p 59

    Google Scholar 

  • Ansori A, Gholami A (2015) Improved nutrient uptake and growth of maize in response to inoculation with Thiobacillus and mycorrhiza on an alkaline soil. Commun Soil Sci Plant Anal 46:2111–2126

    Article  CAS  Google Scholar 

  • Arnon DI, Stout PR (1939) The essentiality of certain elements in minute quantity for plants with special reference to copper. Plant Physiol 14:371–375

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  • Audenaert K, Pattery T, Cornelis P, Höfte M (2002) Induction of systemic resistance to Botrytis cinerea in tomato by Pseudomonas aeruginosa 7NSK2: role of salicylic acid, pyochelin, and pyocyanin. MPMI 15:1147–1156

    Article  CAS  PubMed  Google Scholar 

  • Barea JM, Brown ME (1974) Effects on plant growth produced by Azotobacter paspali related to synthesis of plant growth regulating substances. J Appl Microbiol 37:583–593

    CAS  Google Scholar 

  • Bashan Y (1998) Inoculants of plant growth-promoting bacteria for use in agriculture. Biotechnol Adv 16:729–770

    Article  CAS  Google Scholar 

  • Bashan Y, Holguin G (1997) Azospirillum-plant relationships: environmental and physiological advances (1990–1996). Can J Microbiol 43:103–121

    Article  CAS  Google Scholar 

  • Bashan Y, Ream Y, Levanony H, Sade A (1989) Non-specific responses in plant growth, yield, and root colonization of noncereal crop plants to inoculation with Azospirillum brasilense Cd. Can J Bot 67:1317–1324

    Article  Google Scholar 

  • Bashan Y, Harrison SK, Whitmoyer RE (1990) Enhanced growth of wheat and soybean plant inoculated with Azospirillum brasilense is not necessary due to general enhancement of mineral uptake. Appl Environ Microbiol 56:769–775

    CAS  PubMed  PubMed Central  Google Scholar 

  • Bashan Y, Puente ME, Myrold DD, Toledo G (1998) In vitro transfer of fixed nitrogen from diazotrophic filamentous cyanobacteria to black mangrove seedlings. FEMS Microbiol Ecol 26:165–170

    Article  CAS  Google Scholar 

  • Benson DR, Silvester WB (1993) Biology of Frankia strains, actinomycete symbionts of actinorhizal plants. Microbiol Rev 57:293–319

    CAS  PubMed  PubMed Central  Google Scholar 

  • Bertrand H, Plassard C, Pinochet X, Touraine B, Normand P, Cleyet-Marel JC (2000) Stimulation of the ionic transport system in Brassica napus by a plant growth-promoting rhizobacterium (Achromobacter sp.). Can J Microbiol 46:229–236

    Article  CAS  PubMed  Google Scholar 

  • Biermann B, Linderman RG (1983) Mycorrhizal roots, intraradical vesicles and extraradical vesicles as inoculum. New Phytol 95:97–105

    Article  Google Scholar 

  • Biocyclopedia (2018). https://biocyclopedia.com/index/biotechnology/plant_biotechnology/biofertilizers/biotech_procedures_of_biofertilizer.php

  • Biotech International Limited (2018). https://www.biotech-int.com/biofertilizers.html

  • Boddey RM, de Oliveira OC, Urquiaga S, Reis VM, Olivares FL, Baldani VLD, Döbereiner J (1995) Biological nitrogen fixation associated with sugar cane and rice: contributions and prospects for improvement. Plant Soil 174:195–209

    Article  CAS  Google Scholar 

  • Boddey RM, Da Silva LG, Reis V, Alves BJR, Urquiaga S (2000) Assessment of bacterial nitrogen fixation in grass species. In: Triplett EW (ed) Prokaryotic nitrogen fixation: a model system for analysis of a biological process. Horizon Scientific Press, Wymondham, pp 705–726

    Google Scholar 

  • Boulter JI, Trevors JT, Boland GJ (2002) Microbial studies of compost: bacterial identification, and their potential for turfgrass pathogen suppression. World J Microbiol Biotechnol 18:661–671

    Article  CAS  Google Scholar 

  • Cakmak I (2008) Enrichment of cereal grains with zinc: agronomic or genetic biofortification? Plant Soil 302:1–17

    Article  CAS  Google Scholar 

  • Cakmakci R, Dönmez MF, ErdoÄŸan Ãœ (2007) The effect of plant growth promoting rhizobacteria on barley seedling growth, nutrient uptake, some soil properties, and bacterial counts. Turk J Agric For 31:189–199

    CAS  Google Scholar 

  • Chen JH (2006) The combined use of chemical and organic fertilizers and/or biofertilizer for crop growth and soil fertility. In: International workshop on sustained management of the soil-rhizosphere system for efficient crop production and fertilizer use. Land Development Department Bangkok, Thailand, 16, p 20

    Google Scholar 

  • Cox CD, Adams PA (1985) Siderophore activity of pyoverdin for Pseudomonas aeruginosa. Infect Immun 48:130–138

    CAS  PubMed  PubMed Central  Google Scholar 

  • Davis RD (1996) The impact of EU and UK environmental pressures on the future of sludge treatment and disposal. Water Environ J 10:65–69

    Article  CAS  Google Scholar 

  • Dawson JO (1986) Actinorhizal plants: their use in forestry and agriculture. Outlook Agr 15:202–208

    Article  Google Scholar 

  • De Freitas JR, Banerjee MR, Germida JJ (1997) Phosphate-solubilizing rhizobacteria enhance the growth and yield but not phosphorus uptake of canola (Brassica napus L.). Biol Fertil Soils 24:358–364

    Article  Google Scholar 

  • De Meyer G, Höfte M (1997) Salicylic acid produced by the rhizobacterium Pseudomonas aeruginosa 7NSK2 induces resistance to leaf infection by Botrytis cinerea on bean. Phytopathology 87:588–593

    Article  PubMed  Google Scholar 

  • Diagne N, Arumugam K, Ngom M, Nambiar-Veetil M, Franche C, Narayanan K, Laplaze L (2013) Use of Frankia and actinorhizal plants for degraded lands reclamation. Biomed Res Int 2013

    Google Scholar 

  • Dommergues YR (1995) Nitrogen fixation by trees in relation to soil nitrogen economy. Fertil Res 42:215–230

    Article  CAS  Google Scholar 

  • Edgerton M (2009) Increasing crop productivity to meet global needs for feed, food, and fuel. Plant Physiol 149:7–13

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  • Etesami H, Emami S, Alikhani HA (2017) Potassium solubilizing bacteria (KSB): mechanisms, promotion of plant growth, and future prospects, a review. J Soil Sci Plant Nutr 17:897–911

    Article  CAS  Google Scholar 

  • Gallon JR (2001) N2 fixation in phototrophs: adaptation to a specialized way of life. Plant Soil 230:39–48

    Article  CAS  Google Scholar 

  • Gaur A, Adholeya A (2000) Effects of the particle of soil-less substrates upon AM fungus inoculum production. Mycorrhiza 10:43–48

    Article  Google Scholar 

  • Giller KE, Witter E, Mcgrath ST (1998) Toxicity of heavy metals to microorganisms and microbial processes in agricultural soils: a review. Soil Biol Biochem 30:1389–1414

    Article  CAS  Google Scholar 

  • Goldstein AH, Braverman K, Osorio N (1999) Evidence for mutualism between a plant growing in a phosphate-limited desert environment and a mineral phosphate solubilizing (MPS) rhizobacterium. FEMS Microbiol Ecol 30:295–300

    Article  CAS  PubMed  Google Scholar 

  • Graham PH, Vance CP (2000) Nitrogen fixation in perspective: an overview of research and extension needs. Field Crops Res 65:93–106

    Article  Google Scholar 

  • Gutierez-Mañero FJ, Ramos-Solano B, Probanza A, Mehouachi J, Tadeo FR, Talon M (2001) The plant-growth-promoting rhizobacteria Bacillus pumilus and Bacillus licheniformis produce high amounts of physiologically active gibberellins. Physiol Plant 111:206–211

    Article  Google Scholar 

  • Hashem MA (2001) Problems and prospects of cyanobacterial biofertilizer for rice cultivation. Aust J Plant Physiol 28:881–888

    Google Scholar 

  • Hayat R, Ali S, Amara U, Khalid R, Ahmed I (2010) Soil beneficial bacteria and their role in plant growth promotion: a review. Ann Microbiol 60:579–598

    Article  Google Scholar 

  • Hinsinger P (2001) Bioavailability of soil inorganic P in the rhizosphere as affected by root-induced chemical changes: a review. Plant Soil 237:173–195

    Article  CAS  Google Scholar 

  • Hultberg M, Alsanius B, Sundin P (2000) In vivo and in vitro interactions between Pseudomonas fluorescens and Pythium ultimum in the suppression of damping-off in tomato seedlings. Biol Control 19:1–8

    Article  Google Scholar 

  • Huss-Danell K (1997) Actinorhizal symbioses and their N2 fixation. New Phytol 136:375–405

    Article  CAS  PubMed  Google Scholar 

  • Idris EE, Iglesias DJ, Talon M, Borriss R (2007) Tryptophan-dependent production of indole-3-acetic acid (IAA) affects level of plant growth promotion by Bacillus amyloliquefaciens FZB42. MPMI 20:619–626

    Article  CAS  PubMed  Google Scholar 

  • Indiamart (2018). https://www.indiamart.com/proddetail/reap-p-17855625762.html

  • International Panaacea Limited (2018). http://www.iplbiologicals.com

  • Irisarri P, Gonnet S, Monza J (2001) Cyanobacteria in Uruguayan rice fields: diversity, nitrogen fixing ability and tolerance to herbicides and combined nitrogen. J Biotechnol 91:95–103

    Article  CAS  PubMed  Google Scholar 

  • Jakobsen I, Leggett ME, Richardson AE (2005) Rhizosphere microorganisms and plant phosphorus uptake. In: Sims JT, Sharpley AN (eds) Phosphorus, agriculture and the environment. Am Soc Agronomy, Madison, pp 437–494

    Google Scholar 

  • James EK (2000) Nitrogen fixation in endophytic and associative symbiosis. Field Crops Res 65:197–209

    Article  Google Scholar 

  • James EK, Olivares FL, Baldani JI, Döbereiner J (1997) Herbaspirillum, an endophytic diazotroph colonizing vascular tissue in leaves of Sorghum bicolor L. Moench J Exp Bot 48:785–797

    Article  CAS  Google Scholar 

  • Jangid MK, Khan IM, Singh S (2012) Constraints faced by the organic and conventional farmers in adoption of organic farming practices. Indian Res J Ext Educ Spec Issue II:28–32

    Google Scholar 

  • Kannaiyan S (ed) (2002) Biotechnology of biofertilizers. Alpha Science Int’l Ltd

    Google Scholar 

  • Klironomos JN, Hart MM (2002) Colonization of roots by arbuscular mycorrhizal fungi using different sources of inoculum. Mycorrhiza 12:181–184

    Article  PubMed  Google Scholar 

  • Kundu DK, Ladha JK (1995) Efficient management of soil and biologically fixed N2 in intensively-cultivated rice fields. Soil Biol Biochem 27:431–439

    Article  CAS  Google Scholar 

  • Kurrey DK, Lahre MK, Pagire GS (2018) Effect of Azotobacter on growth and yield of onion (Allium cepa L). J Pharmacogn Phytochem 7:1171–1175

    CAS  Google Scholar 

  • Leeman M, Den Ouden FM, Van Pelt JA, Dirkx FPM, Steijl H, Bakker PAHM, Schippers B (1996) Iron availability affects induction of systemic resistance to Fusarium wilt of radish by Pseudomonas fluorescens. Phytopathology 86:149–155

    Article  CAS  Google Scholar 

  • Lugtenberg B, Kamilova F (2009) Plant-growth-promoting rhizobacteria. Annu Rev Microbiol 63:541–556

    Article  CAS  PubMed  Google Scholar 

  • Malam Issa O, Stal LJ, Défarge C, Couté A, Trichet J (2001) Nitrogen fixation by microbial cruss from desiccated Sahelian soils (Niger). Soil Biol Biochem 33:1425–1428

    Article  CAS  Google Scholar 

  • Malik KA, Bilal R, Mehnaz S, Rasul G, Mirza MS, Ali S (1997) Association of nitrogen-fixing, plant growth-promoting rhizobacteria (PGPR) with kallar grass and rice. Plant Soil 194:37–44

    Article  CAS  Google Scholar 

  • Mallesha BC, Bagyaraj DJ, Pai G (1992) Perlite–soilrite mix as a carrier for mycorrhiza and rhizobia to inoculate Leucaena leucocephala. Leaucaena Res Rep 13:32–33

    Google Scholar 

  • Malusà E, Pinzari F, Canfora L (2016) Efficacy of biofertilizers: challenges to improve crop production. In: Singh DP et al (eds) Microbial inoculants in sustainable agricultural productivity. Springer, New Delhi

    Google Scholar 

  • Meena VS, Maurya BR, Verma JP (2014) Does a rhizospheric microorganism enhance K+ availability in agricultural soils? Microbiol Res 169:337–347

    Article  CAS  PubMed  Google Scholar 

  • Menge JA (1983) Utilization of vesicular arbuscular mycorrhizal fungi in agriculture. New Phytol 81:553–559

    Article  Google Scholar 

  • Mikola P (1970) Mycorrhizal inoculationin afforestation. Int Rev For Res 3:123–196

    Google Scholar 

  • Miller IM (1990) Bacterial leaf nodule symbiosis. Adv Bot Res 17:163–234

    Article  Google Scholar 

  • Mosier AR, Syers JK, Freney JR (eds) (2004) SCOPE 65, agriculture and the nitrogen cycle: assessing the impacts of fertilizer use on food production and the environment. Scientific Committee on Problems of the Environment Series, vol 65. Workshop held by the Scientific Committee on Problems of the Environment in Kampala, Uganda

    Google Scholar 

  • Nash PR, Motavalli PP, Nelson KA (2012) Nitrous oxide emissions from claypan soils due to nitrogen fertilizer source and tillage/fertilizer placement practices. Soil Sci Soc Am J 76:983–993

    Article  CAS  Google Scholar 

  • National fertilizers limited (2018). http://www.nationalfertilizers.com/index.php?option=com_content&view=article&id=140&Itemid=156&lang=en

  • Ngampimol H, Kunathigan V (2008) The study of shelf life for liquid biofertilizer from vegetable waste. Au J T 11:204–208

    Google Scholar 

  • Okon Y (1985) Azospirillum as a potential inoculant for agriculture. Trends Biotechnol 3:223–228

    Article  Google Scholar 

  • Okon Y, Labandera-Gonzalez CA (1994) Agronomic applications of Azospirillum: an evaluation of 20 years worldwide field inoculation. Soil Biol Biochem 26:1591–1601

    Article  CAS  Google Scholar 

  • Pindi PK, Satyanarayana SDV (2012) Liquid microbial consortium – a potential tool for sustainable soil health. J Biofertil Biopestici 3:124

    Google Scholar 

  • Polyanskaya LM, Vedina OT, Lysak LV, Zvyagintsev DG (2002) The growth-promoting effects of Beijerinckia mobilis and Clostridium sp. cultures on some agricultural crops. Microbiology 71:109–115

    Article  CAS  Google Scholar 

  • Redecker D, Thierfelder H, Werner D (1995) A new cultivation system for arbuscular mycorrhizal fungi on glass beads. Angew Bot 69:189–191

    Google Scholar 

  • Richardson AE (2001) Prospects for using soil microorganisms to improve the acquisition of phosphorus by plants. Aust J Plant Physiol 28:897–906

    Google Scholar 

  • Rillig MC, Wright SF, Eviner VT (2002) The role of arbuscular mycorrhizal fungi and glomalin in soil aggregation: comparing effects of five plant species. Plant Soil 238:325–333

    Article  CAS  Google Scholar 

  • Roper MM, Gault RR, Smith NA (1995) Contribution to the N status of soil by free-living N2-fixing bacteria in a Lucerne stand. Soil Biol Biochem 27:467–471

    Article  CAS  Google Scholar 

  • Ryan MH, Graham JH (2002) Is there a role for arbuscular mycorrhizal fungi in production agriculture? Plant Soil 244:263–271

    Article  CAS  Google Scholar 

  • Schachtman DP, Reid RJ, Ayling SM (1998) Phosphorus uptake by plants: from soil to cell. Plant Physiol 116:447–453

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  • Schultz RC, Colletti JP, Faltonson RR (1995) Agroforestry opportunities for the United States of America. Agrofor Syst 31:117–142

    Article  Google Scholar 

  • Schwencke J, Carù M (2001) Advances in actinorhizal symbiosis: host plant–Frankia interactions, biology, and applications in arid land reclamation: a review. Arid Land Res Manage 15:285–327

    Article  CAS  Google Scholar 

  • Schwintzer CR, Tjepkema JD (1990) The biology of Frankia and actinorhizal plants. Academic Press, San Diego, CA

    Google Scholar 

  • Sethi SK, Sahu JK, Adhikary SP (2014) Microbial biofertilizers and their pilot-scale production. Microbial Biotechnol Progr Trends 297

    Google Scholar 

  • Sharma SB, Sayyed RZ, Trivedi MH, Gobi TA (2013) Phosphate solubilizing microbes: sustainable approach for managing phosphorus deficiency in agricultural soils. Springerplus 2:587

    Article  PubMed  PubMed Central  CAS  Google Scholar 

  • Singh I, Giri B (2017) Arbuscular mycorrhiza mediated control of plant pathogens. In: Mycorrhiza – Nutrient uptake, biocontrol, ecorestoration. Springer, Cham, pp 131–160

    Chapter  Google Scholar 

  • Singh S, Singh BK, Yadav SM, Gupta AK (2014) Potential of biofertilizers in crop production in Indian agriculture. Am J Plant Nutr Fertil Technol 4:33–40

    Article  Google Scholar 

  • Smith SE, Read DJ (1997) Mycorrhizal symbiosis. Academic Press, London

    Google Scholar 

  • Smolander A, Sarsa ML (1990) Frankia strains of soil under Betula pendula: behaviour in soil and in pure culture. Plant Soil 122:129–136

    Article  Google Scholar 

  • Socolow RH (1999) Nitrogen management and the future of food: lessons from the management of energy and carbon. Proc Natl Acad Sci USA 96:6001–6008

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  • Spaink HP, Kondorosi A, Hooykaas PJJ (eds) (1998) The Rhizobiaceae. Kluwer Academic Publishers, Dordrecht

    Google Scholar 

  • Sprent JI, Parsons R (2000) Nitrogen fixation in legume and non-legume trees. Field Crops Res 65:183–196

    Article  Google Scholar 

  • Stamford NP, Ortega AD, Temprano F, Santos DR (1997) Effects of phosphorus fertilization and inoculation of Bradyrhizobium and mycorrhizal fungi on growth of Mimosa caesalpiniaefolia in an acid soil. Soil Biol Biochem 29:959–964

    Article  CAS  Google Scholar 

  • Stephens JHG, Rask HM (2000) Inoculant production and formulation. Field Crops Res 65:249–258

    Article  Google Scholar 

  • Sundara B, Natarajan V, Hari K (2002) Influence of phosphorus solubilizing bacteria on the changes in soil available phosphorus and sugar cane and sugar yields. Field Crops Res 77:43–49

    Article  Google Scholar 

  • Sylvia DM (1990) Inoculation of native woody plants with vesicular–arbuscular fungi for phosphate mine land reclamation. Agric Ecosyst Environ 31:847–897

    Article  Google Scholar 

  • Taylor AG, Harman GE (1990) Concepts and technologies of selected seed treatments. Annu Rev Phytopathol 28:321–339

    Article  Google Scholar 

  • Thakur P, Singh I (2018) Biocontrol of soilborne root pathogens: an overview. In: Root biology, soil biology. Springer, pp 181–220. https://doi.org/10.1007/978-3-319-75910-4_7

    Google Scholar 

  • Timmusk S, Nicander B, Granhall U, Tillberg E (1999) Cytokinin production by Paenobacillus polymyza. Soil Biol Biochem 31:1847–1852

    Article  CAS  Google Scholar 

  • Timmusk S, Behers L, Muthoni J, Muraya A, Aronsson A (2017) Perspectives and challenges of microbial application for crop improvement. Front Plant Sci 8:49. https://doi.org/10.3389/fpls.2017.00049

    Article  PubMed  PubMed Central  Google Scholar 

  • Torrey JG (1978) Nitrogen fixation by actinomycete-nodulated angiosperms. Bioscience 28:586–592

    Article  Google Scholar 

  • Triplett E (1996) Diazotrophic endophytes: progress and prospects for nitrogen fixation in monocots. Plant Soil 186:29–38

    Article  CAS  Google Scholar 

  • Unkovich MJ, Pate JS (2000) An appraisal of recent field measurements of symbiotic N2 fixation by annual legumes. Field Crops Res 65:211–228

    Article  Google Scholar 

  • Unkovich MJ, Pate JS, Sanford P (1997) Nitrogen fixation by annual legumes in Australian Mediterranean agriculture. Aust J Agric Res 48:267–293

    Article  Google Scholar 

  • Vance CP (1998) Legume symbiotic nitrogen fixation: agronomic aspects. In: Spaink HP (ed) The Rhizobiaceae. Kluwer Academic, Dordrecht, pp 509–530

    Chapter  Google Scholar 

  • Vance CP (2001) Symbiotic nitrogen fixation and phosphorus acquisition. Plant nutrition in a world of declining renewable sources. Plant Physiol 127:390–397

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  • Vande Broek A, Dobbelaere S, Vanderleyden J, Vandommelen A (2000) Azospirillum–plant root interactions: signaling and metabolic interactions. In: Triplett EW (ed) Prokaryotic nitrogen fixation: a model system for analysis of a biological process. Horizon Scientific Press, Wymondham, pp 761–777

    Google Scholar 

  • Wall LG (2000) The actinorhizal symbiosis. J Plant Growth Regul 19:167–182

    CAS  PubMed  Google Scholar 

  • Wani SA, Chand S, Ali T (2013) Potential use of Azotobacter chroococcum in crop production: an overview. Curr Agric Res 1:35–38

    Article  Google Scholar 

  • White DP (1941) Prairie soil as a medium for tree growth. Ecology 22:398–407

    Article  Google Scholar 

  • Wilde HE (1944) Mycorrhizae and silviculture. J For 42:290

    Google Scholar 

  • Wood T, Cummings B (1992) Biotechnology and the future of VAM commercialization. In: Allen MF (ed) Mycorrhizal functioning. Chapman and Hall, London, pp 468–487

    Google Scholar 

  • Yu G, Ran W, Shen Q (2016) Compost process and organic fertilizers application in China. In: Organic fertilizers – From Basic concepts to applied outcomes. InTech. https://doi.org/10.5772/62324

    Google Scholar 

  • Zahran HH (1999) Rhizobium-legume symbiosis and nitrogen fixation under severe conditions and in an arid climate. Microbiol Mol Biol Rev 63:968–989

    CAS  PubMed  PubMed Central  Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Editor information

Editors and Affiliations

Rights and permissions

Reprints and permissions

Copyright information

© 2019 Springer Nature Switzerland AG

About this chapter

Check for updates. Verify currency and authenticity via CrossMark

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

Publish with us

Policies and ethics