Soil K rundown in the Western grains region – where, why and what does it mean for crop yields?

Examining the evidence for soil K rundown, its likely impacts on crop yields and implications for soil testing and K fertilisation.

Optimising fertiliser application – what level of precision can we achieve?

This paper assesses the influence of recent changes in fertiliser and grain prices on economically optimum N, P and K fertiliser rates.

GRDC Podcast: The importance of potassium with Dr Richard Bell

In a recent GRDC Communities Crop Nutrition podcast, Dr Richard Bell from Murdoch University explained the importance of potassium (K) for optimal plant growth and reducing the effects of stressors such as drought, frost and salinity.