In tough conditions crops do better with potassium

Having sufficient potassium reduces crop damage in frost events. Field trials in Western Australia showed benefits from potassium in wheat and canola. Richard Bell is a researcher at Murdoch University. In this video he explains:

  • Crops respond more to potassium fertiliser in seasons that stress the plants with drought or frost conditions
  • Growers in WA apply insufficient potassium fertiliser to replace the nutrient removed in grain
  • Soil tests deeper than 0–10 cm are needed to predict potassium deficiency.

This research was funded by the GRDC through the More Profit from Crop Nutrition (MPCN II) program.

More information


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