Key Points
- All cultivars at all sites recorded increased yields in response to Nitrogen fertiliser
- Best yield at all 3 sites was achieved when 60 kgN/ha was applied at sowing, followed by 120 kgN/ha during tillering
- Yield increases were the result of more ears/m2 but there was little change in grain size
- Nitrogen fertiliser caused few changes in grain quality, only protein levels were increased