After record harvests, how much nitrogen will be tied-up in high wheat stubble loads?

Big crops in recent years and resulting high stubble loads can lead to soil nitrogen being tied-up by microorganisms.

K responses on loamy soils: An emerging issue for grain crops

This GRDC Update Paper discusses how yield responses to K fertiliser are now demonstrated on loamy soil due to run down in soil K levels.

GroundCover: Agronomy still top priority for nitrogen fertiliser decisions

A survey of Western Australian growers has revealed that the number of nitrogen applications per year has increased to better match nitrogen supplies to seasonal conditions.