| Researcher(s) |
Stuart Sheriff Sam Trengove |
|---|---|
| Year(s) | 2018 |
| Contributor | Hart Field Site Group |
| Trial location(s) |
Bute, SA
Hart, SA Hill River, SA |
| Further information | View external link |
To evaluate the effect of soil amelioration (chicken litter/ synthetic fertiliser) applied either at surface or subsoil.
• The application of high rates of chicken litter or synthetic fertiliser to the surface or subsoil (in 2015) did not increase grain yields in 2018 above the untreated controls.
• At the Hill River sites, the long-term cumulative grain yields over the four years were higher in response to the application of chicken litter or synthetic fertiliser amendments in 2015. This was mostly due to high wheat yields in 2016.
• Across seven trials in the Mid-North and Upper Yorke Peninsula there have been inconsistent yield responses from subsoil amelioration. The impact of season and crop type has also had a large effect on yield response.
| Lead research organisation | N/A |
|---|---|
| Host research organisation | N/A |
| Related program | N/A |
| Acknowledgments |
Trial co-operators Bill Trengove, Matt Dare and Craig Jaeschke, Vic DPI for loan of the subsoil manuring machine, Jim Maitland for providing chicken litter at the Hart site and Australian Growers Direct for providing facilities for grain quality analysis. |
| Other trial partners | Not specified |
| Crop types | Forage: Oats Cereal (Grain): Wheat Cereal (Grain): Barley Oilseed: Canola |
|---|---|
| Treatment type(s) |
|
| Trial type | Experimental |
| Trial design | Randomised,Replicated |
| Sow rate or Target density | 80 kg/ha |
|---|---|
| Sow date | 18 April 2018 |
| Harvest date | Unknown |
| Trial design method | RCBD Randomised Complete Block Design |
| Plot size | 2.5m x 12.0m |
| Plot replication | 3 |
| Plot blocking | yes |
| Plot randomisation | Y |
| Fertiliser |
80 kg/ha DAP |
| Sow rate or Target density | 90 kg/ha |
|---|---|
| Sow date | 2 May 2018 |
| Harvest date | Unknown |
| Trial design method | RCBD Randomised Complete Block Design |
| Plot size | 2.5m x 12.0m |
| Plot replication | 3 |
| Plot blocking | yes |
| Plot randomisation | Y |
| Fertiliser |
Bute Mid: 90 kg/ha DAP + 50 kg/ha Urea 19th July |
| Sow rate or Target density | 1.9 kg/ha |
|---|---|
| Sow date | 30 May 2018 |
| Harvest date | Unknown |
| Trial design method | RCBD Randomised Complete Block Design |
| Plot size | 2.5m x 12.0m |
| Plot replication | 3 |
| Plot blocking | yes |
| Plot randomisation | Y |
| Fertiliser |
100 kg/ha DAP + 65 kg/ha Urea 25th July |
| Sow rate or Target density | 1.9 kg/ha |
|---|---|
| Sow date | 18 April 2018 |
| Harvest date | Unknown |
| Trial design method | RCBD Randomised Complete Block Design |
| Plot size | 2.5m x 12.0m |
| Plot replication | 3 |
| Plot blocking | yes |
| Plot randomisation | Y |
| Fertiliser |
100 kg/ha 28:13 kg/ha IBS + 2 t/ha chicken litter and 1 t/ha gypsum pre seeding + 80 kg/ha urea 2nd July + 100 kg/ha Urea |
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.
