Focus on nitrogen and biomass for better canola


Not enough nitrogen is the most common limit to canola yield. The current key messages on nitrogen (N) for canola crops are:

  • biomass is the biggest driver of canola yield
  • low N limits biomass
  • low biomass limits water and nutrient uptake
  • canola crops need 80 kg of available N per tonne of grain yield
  • N fertiliser can be applied up front or in split applications
  • staggering N applications can reduce seasonal risks
  • paddock rotations with N fixing plants can minimise N deficiency.

Research agronomist Rohan Brill runs NSW DPI’s canola trials at Wagga Wagga.

More Information

GRDC Canola best practice management guide for south-eastern Australia

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