| Researcher(s) |
Natalie Hogg (DAFWA) Frances Hoyle (DAFWA) Justin Laycock (DAFWA) Liam Ryan (DAFWA) |
|---|---|
| Year(s) | 2014 |
| Contributor | Liebe Group |
| Trial location(s) |
Buntine, WA
|
To assess the effects of physical (spading), chemical (fertiliser) and biological (compost) treatments on soil organic carbon (SOC) in relation to changes in long term crop yields and quality.
| Lead research organisation |
Department of Agriculture and Food WA |
|---|---|
| Host research organisation |
Liebe Group |
| Trial funding source | Australian Government |
| Related program | N/A |
| Acknowledgments |
Thanks to the Liebe Group and their growers for continued interest and support for this project and management of the trial site. Also thanks to Natalie Hogg (DAFWA), Richard Bowles (UWA) and Justin Laycock (DAFWA) for enabling this trial site to be implemented and sampled. This project is led by the Department of Agriculture & Food, WA in collaboration with the Liebe Group and is supported by funding from the Australian Government. |
| Other trial partners | Not specified |
| Crop type | Forage: Oats |
|---|---|
| Treatment type(s) |
|
| Trial type | Experimental |
| Trial design | Replicated |
| Sow rate or Target density | 78 kg/ha |
|---|---|
| Sow date | 6 May 2014 06 May 2014 |
| Harvest date | Not specified |
| Plot size | 50m x 18.2m |
| Plot replication | 4 |
| Fertiliser |
06/05/2014: All treatments 10 L/ha Flexi-N; 9 L/ha CalSap, Low treatment 25 kg/ha Urea, High treatment 50 kg/ha urea (top-dressed) 07/05/2014: Low treatment 34 kg/ha TSP, High treatment 80 kg/ha TSP (top-dressed) 18/07/2014: Low treatment 25 kg/ha Urea, High treatment 50 kg/ha Urea (top-dressed) |
| Herbicide |
06/05/2014: 2 L/ha Spray.Seed, 0.5 L/ha Diuron, 0.5 L/ha Dual Gold 30/06/2014: 500 g/ha Diuron, 140 g/ha Cadence, 1.5 L/ha Precept, 1% Hasten |
| Soil amelioration |
17/05/2013: Rotary spading |
| Other trial notes |
For further information, contact |
| # | Variety |
Bulk density (g/cm3) | Organic carbon (%) | Colwell phosphorus (mg/kg) | Organic carbon (t/ha) | Sulphur (mg/kg) | pH CaCl2 (pH) | Potassium Cowell (mg/kg) |
|---|---|---|---|---|---|---|---|---|
| 1 | █ 0-10 cm | 1.45 | 0.86 | 29 | 12.9 | 25 | 6 | 73 |
| 2 | █ 10-20 cm | 1.76 | 0.5 | 18 | 8.7 | 15 | 4.7 | 51 |
| 3 | █ 20-30 cm | 1.63 | 0.26 | 7 | 1.9 | 20 | 4.7 | 53 |
| Rainfall avg gsr (mm) | 159mm |
|---|
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.
