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.

GRDC Podcast: Yield response to P fertiliser

GRDC caught up with Senior Research Scientist Craig Scanlan about what’s driving and influencing yield response to P fertiliser.

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.