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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.

March 21, 2023

This GRDC Update Paper by Richard Bell, Craig Scanlan, James Easton, Tim Boyes and Qifu Ma discusses how yield responses are now demonstrated on loamy soils due to run down in soil K levels. Soil test K levels required to avoid deficiency on loamy soils appear to be higher than those used for sands and sandy duplex soils.

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Residues of previous findings in new research

Preliminary findings of a replicated experiment led by DPIRD Research Scientist Dr Bidhyut Banik have parallels with nitrous oxide research conducted by UWA Associate Professor Louise Barton over the last 15 years.

The transient problem that won’t go away

DPIRD Senior Principal Research Scientist Dr Ed Barrett-Lennard is worried that salinity, which affects around six million hectares of the eastern Wheatbelt, isn’t being talked about enough.

Beyond lime: getting micronutrients right as soil pH changes

Murdoch University’s Dr Tona Sanchez-Palacios says farmers could find themselves navigating micronutrient deficiency in response to otherwise successful liming programs.

Practical podcasts for managing soil constraints

Explore our curated podcast playlists featuring leading researchers, advisers and farmers. With a focus on Western Australian soils and agricultural systems, alongside relevant insights from interstate experts.

Tagged craig scanlan, crop nutrition, dpird, grdc, murdoch, npk, potassium, richard bell, summit, wheat

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