Sum15-12 Nitrogen and Phosphorus in Wheat, Moorine Rock


Part of a series of trials to assess wheat response 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: Yield responses to N & P


  • Both Phosphorus (P) and Nitrogen (N) combined significantly to improve wheat yield.
  • Treatments responses were consistent with Summit trials over many years in the area.
  • A P recommendation of 12-18 kg/ha and N recommendation of 30-60 kg/ha optimised yield and grower returns.