Estimating plant-available potassium in loamy soil

Updating knowledge for better potassium fertiliser decision making on heavy-textured soil.

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.

GroundCover: Loamy soils’ potassium status under review

A spotlight is being trained on the potassium status of loamy soils in Western Australia, as these soils have flown under the radar for potassium research in recent decades.