Field Research & Agronomy

AIM:

This trial examines potassium (K) rates as muriate of potash (MOP) products applied by a number of methods and the effects on growth and yield of Mace wheat.

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

CONCLUSIONS:

• Sandplain soil with Colwell K analysis lower than 30 mg/kg is highly likely to be responsive to K.
  
• K applied at 13-17 kg/ha in the compound NPK+traces fertiliser, Vigour, banded below the seed improved yields compared to NP+traces compound alone, and yields were further enhanced by applying additional 12.5 kg/ha K as MOP.
  
• Optimised returns will depend on fertiliser and grain prices at the time.
  In the present trial, the greatest increase in returns were seen with Vigour 140 kg/ha at seeding plus 25 kg/ha MOP applied PSPE.