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.

How does the price of phosphorus fertiliser influence net return in wheat?

With global phosphorus (P) supply chain issues continuing and prices for fertiliser expected to stay high in 2022, decisions around P fertiliser application rate will have greater influence on the budgets of grain-producing businesses than usual next season.