Overcoming constraints to the profitability of cropping systems on ironstone gravel soils within the Southern cropping region of Australia - Phase II
Providing new information on water and nutrient use efficiency of ironstone gravel soils to better inform their management.
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The distribution of gravel soils across Australia’s southern cropping zones is well known, with 24 % of land used for crop production in southwestern WA containing gravel and further gravel regions on the Eyre Peninsula and Kangaroo Island, SA.
Despite this, gravel soils do not reach their water-limited yield potential (kilograms grain per millimetre of available water). This is thought to be linked to the reactivity of gravel surfaces and their internal pore networks influencing water movement and fertiliser use efficiencies (especially phosphorus and nitrogen) in the soil profile.
Gravels vary in composition across the landscape due to differences in their parent geology and soils. As such, there is a need to understand this variability and its consequence on water and nutrient interactions.
- Francesca Brailsford (Murdoch University)
- Frances Hoyle (Murdoch University)
- Richard Bell (Murdoch University)
- Talitha Santini (University of Western Australia)
- Matthias Leopold (University of Western Australia)
- Martin Saunders (CMCA, University of Western Australia)
- Peta Clode (CMCA, University of Western Australia)
- David Mainwaring (Murdoch University)
- Davey L. Jones (Murdoch University)
- Emily Cooledge (Bangor University)
- Gavan McGrath (University of Western Australia, Murdoch University)
- Panagiotis Manesiotis (QUB)
- Brett Masters (PIRSA)
- Lyn Dohle (PIRSA, KI)
- Daniel Murphy (Murdoch University)
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This project is supported by a Grains Research and Development Corporation (GRDC) co-investment. Other funding and in-kind support was provided by the Department of Primary Industries and Regional Development (DPIRD), Murdoch University, and The University of Western Australia.
GRDC Project Code: UMU2111-001RTX