Resonance

, Volume 9, Issue 6, pp 6–10 | Cite as

Cyanobacteria: A potential biofertilizer for rice

  • Upasana Mishra
  • Sunil Pabbi
General Article

Abstract

Application of high input technologies has resulted in significant increase in agricultural productivity. There is, however, a growing concern about the adverse effects of indiscriminate use of chemical fertilizers on soil productivity and environmental quality. Cyanobacteria offer an economically attractive and ecologically sound alternative to chemical fertilizers for realizing the ultimate goal of increased productivity, especially in rice cultivation. In a wetland rice ecosystem, nitrogen fixation by free living cyanobacteria also significantly supplements soil nitrogen.

Keywords

Nitrogen fixation sustainable agriculture soil fertility bluegreen algae 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

Suggested Reading

  1. [1]
    P K De, The role of blue green algae in nitrogen fixation in rice fields, Proc. Roy Soc. London. B, Vol. 127, pp. 129–139, 1939.CrossRefGoogle Scholar
  2. [2]
    A Watanabe, R Ito and C Konishi, Effect of nitrogen fixing blue green algae on the growth of rice plants, Nature, Vol.168, pp. 748–749, 1951.CrossRefGoogle Scholar
  3. [3]
    G S Venkataraman, Algal biofertilizers andrice cultivation, Today and Tommorrow Printers and Publishers, Faridabad, India, 1972.Google Scholar
  4. [4]
    P K Singh, DW Dhar, S Pabbi, R Prasanna and A Arora (Editors), Biofertilizers: Blue Green Algae and Azolla, IARI, New Delhi. Venus Printers and Publishers, New Delhi, 2000.Google Scholar

Copyright information

© Indian Academy of Sciences 2004

Authors and Affiliations

  • Upasana Mishra
    • 1
  • Sunil Pabbi
    • 1
  1. 1.Centre for Conservation and Utilisation of Blue-Green AlgaeIndian Agricultural Research InstituteNew DelhiIndia

Personalised recommendations