| Researcher(s) | N/A |
|---|---|
| Contact email | samtrenny34@hotmail.com |
| Year(s) | 2023 |
| Contributor | Trengove Consulting |
| Trial location(s) |
Bute, SA
|
This project aims to establish field sites which demonstrate amelioration techniques that growers can use to address the specific sandy soil constraints for their local landscape type and where in the landscape different tactics are best deployed.
• All sandy sites were responsive to both physical interventions and CL addition. The size of the response varied for each site ranging from up to 127% on the most productive sand (North hill top) up to 191% on the least productive sand (South mid slope).
• The grain yield response to physical incorporation method (deep ripping and spading) and CL was generally greater than 10%, but the ranking of specific treatments varied within each of the three sandy soil trial sites.
• In the absence of CL, there was no benefit from using long versus short inclusion plates in year one. However, in year two both the North sites had improved grain yield from the use of long inclusion plates suggesting greater longevity from the inclusion of more top soil.
• In the first season, spading resulted in a soft soil surface and made seed placement difficult. Consequently, the wheat crop struggled to emerge and impacted crop performance. However, in the second season the soil had consolidated and no issues with seed placement or crop establishment occurred.
• Results from the depth of ripping trials have shown responses to ripping 40-60 cm deep in all six site years. No yield responses were measured from a ripping depth of 20 cm.
| Lead research organisation |
Agricultural Innovation & Research Eyre Peninsula |
|---|---|
| Host research organisation |
Trengove Consulting |
| Trial funding source | Future Drought Fund: Drought resilient soils |
| Related program | N/A |
| Acknowledgments |
This program received funding from the Australian Government’s Future Drought Fund project title ‘Building drought resilience by scaling out farming practices that will enhance the productive capacity of sandy soil landscapes’. Thank you to our project partners AIR EP. We also acknowledge the support of local grower James Venning for hosting the trials. |
| Other trial partners | Not specified |
| Crop type | Cereal (Grain): Barley |
|---|---|
| Treatment type(s) |
|
| Trial type | Experimental |
| Trial design | Replicated |
| Sow date | Not specified |
|---|---|
| Harvest date | Not specified |
| Plot size | Not specified |
| Plot replication | Not specified |
| Psuedoreplication | Not specified |
SILO weather estimates sourced from https://www.longpaddock.qld.gov.au/silo/
Jeffrey, S.J., Carter, J.O., Moodie, K.B. and Beswick, A.R. (2001). Using spatial interpolation to construct a comprehensive archive of Australian climate data , Environmental Modelling and Software, Vol 16/4, pp 309-330. DOI: 10.1016/S1364-8152(01)00008-1.
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Note that PBR cover is administered through the Plant Breeders’ Right Act 1994 (