SUM19-25: Nitrogen x Phosphorus Rates, Goomalling.
Aim
This trial investigates the response of wheat to applied nitrogen (N) and phosphorus (P) ratesto determine a recommended fertilizer regime for local growers that maximises yield and profitability
When P supply is limited, plants are unable to utilise additional N for plant growth and yield.
Harvest yield increased with applied N and P to trial maximum of 2.4 t/ha at 24kg P/ha and 120kg N/ha.
Grain protein content increased with applied N, with majority of treatments graded as ASW1.
Economic analysis showed the appropriate recommended fertilizer application rates under decile 5 rainfall conditions on gravelly sandy loam in the Goomalling area are 12kg P/ha and 80-100kg N/ha.
Contact local Area Manager, Brayden Noble bnoble@summitfertz.com.au 0417 490 047 for more details about this trial.