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Diazotrophs for Lowering Nitrogen Pollution Crises: Looking Deep Into the Roots.

Asma Imran1, Sughra Hakim1, Mohsin Tariq1,2,3

  • 1Division of Soil and Environmental Biotechnology, National Institute for Biotechnology and Genetic Engineering-Campus-Pakistan Institute of Engineering and Applied Sciences (NIBGE-C-PIEAS), Faisalabad, Pakistan.

Frontiers in Microbiology
|June 10, 2021
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Summary
This summary is machine-generated.

Excessive nitrogen fertilizer use harms the environment and soil. Integrating diazotrophs with nano-fertilizers can reduce nitrogen pollution and costs.

Keywords:
nitrogen fixationnitrogen pollutionnitrogen use efficiencyrhizobiaslow-releasing fertilizers

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Area of Science:

  • Agricultural Science
  • Environmental Science
  • Microbiology

Background:

  • Extensive use of nitrogen (N) agrochemicals post-Green Revolution has led to decreased soil fertility, increased costs, and severe environmental pollution.
  • Nitrogen pollution contaminates water bodies and contributes to climate change, acid rain, and health issues.
  • Current agricultural N management strategies focus on N-use efficiency, often overlooking natural nitrogen sources like diazotrophic bacteria.

Purpose of the Study:

  • To assess the potential of diazotroph inoculation in meeting crop nitrogen requirements.
  • To explore agricultural N management strategies that benefit the environment and reduce farmer costs.
  • To investigate the role of nanotechnology in advancing diazotroph application.

Main Methods:

  • Review of existing literature on nitrogen management, diazotrophic bacteria, and nanotechnology in agriculture.
  • Analysis of the biological nitrogen fixation process by diazotrophs.
  • Exploration of integrated approaches combining nano-fertilizers and microbial inoculants.

Main Results:

  • Diazotrophic bacteria can significantly contribute to meeting crop nitrogen needs through biological nitrogen fixation.
  • Integrated strategies using slow-releasing nano-fertilizers and diazotrophs show promise for reducing nitrogen inputs.
  • Nanotechnology offers potential for enhanced delivery and efficacy of diazotrophs in agricultural systems.

Conclusions:

  • An integrated approach combining nano-fertilizers and diazotrophs is recommended to minimize nitrogen pollution and losses in agriculture.
  • This integrated technology can lead to environmental benefits and economic savings for farmers.
  • Further research and adoption of such integrated technologies are crucial for sustainable agriculture.