Sum15-09 Nitrogen and Phosphorus in wheat, Nungarin


To assess how wheat responds to N and P fertilizer applications under different conditions, soil P stores and soil PBI across the wheat belt.

For further details contact your local Area Manager or the Summit Research Team

Table 1: Soil Analysis
Fig 1: Yield and Protein
Fig 2: Response to N and P


  • Differences in yield between treatments were significant and consistent with Summit trials over many years in the area
  • A P recommendation of 8-10 kg/ha and N recommendation of 30-60 kg/ha maximises grower returns.