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Calculating the nitrogen benefit from legume crops – NSW (Factsheet)

This factsheet, from the Grains Research and Development Corporation (GRDC), explains that maximising the nitrogen legacy from legume crops depends on maximising biomass and ensuring high nitrogen fixation rates. These findings were based on research conducted by CSIRO and NSW DPI in southern NSW from 2017 -2020. The aim was to measure the impact of legumes on soil mineral nitrogen available to subsequent crops and the yield and dollar value of this benefit to the system. They also found that the nitrogen legacy was maximised by selecting the best legume crop, variety and sowing time for the soil type – getting the agronomy right. This factsheet includes a link to “What is the N legacy following pulses for subsequent crops and what management options are important to optimise N fixation?” paper. While these finding apply to southern NSW, they would be of value to other legume-growing regions. #

  • Audience: RSP, tertiary students, landholders, SFSG, consultants
  • State: QLD, NSW, VIC, SA, WA
  • Author/Editor: T Swan and M Dunn
  • Publisher: GRDC
  • Resource Type: Factsheet
  • Copyright Year: 2023
  • Not Provided
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Resource Last Updated: March 17, 2026

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