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How to boost legume nitrogen fixation

In this factsheet from Agresol, Teale Simmons explains the key factors that influence nitrogen fixation in legume crops and pastures. He describes how the symbiosis between legumes and rhizobia bacteria enables plants to convert atmospheric nitrogen into a form that can be used for growth, reducing the need for nitrogen fertiliser. The factsheet outlines practical steps to maximise nitrogen fixation, including selecting the correct rhizobia inoculant, ensuring adequate soil phosphorus and molybdenum levels, maintaining suitable soil pH, and managing grazing or crop competition. It includes an explanatory YouTube video How to boost nitrogen fixation [19:43]. #

  • Audience: RSP, tertiary students, landholders, SFSG, consultants
  • State: ACT, NSW, NT, QLD, SA, TAS, VIC, WA
  • Author/Editor: T Simmons
  • Publisher: Agresol
  • Resource Type: Factsheet
  • Copyright Year: 2025
  • Not Provided
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Resource Last Updated: March 17, 2026

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