GroundCover: New knowledge to tap residual soil phosphorus

Unlocking legacy phosphorus may be a key to improved sustainability of cropping systems.

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.