| Researcher(s) |
Giacomo Betti Steve Davies Chad Reynolds |
|---|---|
| Year(s) | 2017 |
| Contributor | Northern Agri Group |
| Trial location(s) |
Binnu, WA
|
The aim of this trial is to compare new options for the management of water repellent soils with subsoil compaction in low rainfall areas of the Wheatbelt.
• The yield in the control was very low to start with. The addition of clay/compost on the surface and incorporation by offset disc (treatment 2) had little impact on yield (only 0.1-0.2 t/ha; Tab 2)
• Deep ripping alone (treatment 3) increased yield by more than 1 t/ha.
• Adding the inclusion plates to the ripper (treatment 4, 5 and 6), increased the yields by an additional 0.4 to 0.6 t/ha over deep ripping alone.
• The combination of clay/compost with deep ripping and inclusion plates increased the yields by an extra 0.15 to 0.2 t/ha compared to deep ripping + inclusion plates alone. However, no significant difference was found between the deep inclusion of clay/compost (treatment 6) and the inclusion of surface clay/compost with the inclusion plates (treatment 5).
| Lead research organisation | N/A |
|---|---|
| Host research organisation | N/A |
| Trial funding source | GRDC DAW00244 |
| Related program | N/A |
| Acknowledgments |
This research is funded by DPIRD and GRDC through DAW00244 soil water repellence project, part of GRDC’s Soil Constraints West portfolio. Many thanks to Tom Powell (Binnu Grower), NuFab Industries for support with trial ripper and C-Wise for compost product. |
| Other trial partners | Not specified |
| Crop type | Cereal (Grain): Wheat |
|---|---|
| Treatment type(s) |
|
| Trial type | Experimental |
| Trial design | Replicated |
| Sow date | Unknown |
|---|---|
| Harvest date | 14 November 2017 |
| Plot size | Not specified |
| Plot replication | 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.
