| Researcher(s) |
Travis Hollins (Caldo Holdings) |
|---|---|
| Year(s) | 2014 |
| Contributor | Caldo Holdings Pty Ltd |
| Trial location(s) |
Nungarin, WA
|
To establish a farmer scale demonstration site at Nungarin on a Wodjil soil type investigating cheap, cost-effective methodology to effectively incorporate lime to depth which removes the subsurface constraint and provides more immediate returns to growers on their investment.
One way plough and Grizzly Offset discs appear to be the most efficient, practical most cost effective method of incorporating lime into the topsoil in the eastern wheatbelt wodjil soils.
| Lead research organisation | N/A |
|---|---|
| Host research organisation | N/A |
| Trial funding source | GRDC CH00001 |
| Related program |
Regional Cropping Solutions Network |
| Acknowledgments |
Neil & Jason Davis Trial Hosts, Greg and Shane Jolly, Glen and Todd Quartermaine, John Nicolleti, Hutton and Northey Sales Mukinbudin, Andrew Oldcorn, Andrew Coumbe, Bill Lee, Aglime Australia, Precision SoilTech and Stephen Davis DAFWA who all assisted with the trial |
| Other trial partners | Not specified |
| Crop type | Cereal (Grain): Wheat |
|---|---|
| Treatment type(s) |
|
| Trial type | Demonstration |
| Trial design | Not applicable |
| Sow date | Not specified |
|---|---|
| Harvest date | Not specified |
| Plot size | 15m x 120m |
| Plot replication | Not specified |
| Fertiliser |
As per treatments |
| @T1: Pre lime | @T2: Post lime | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| # |
Treatment 1
|
Treatment 2
|
10-20cm change in soil pH (pH) | 20-30cm change in soil pH (pH) | 0-10cm change in soil pH (pH) | 0-10cm soil pH (pH) | 10-20cm soil pH (pH) | 20-30cm soil pH (pH) | 0-10cm soil pH (pH) | 10-20cm soil pH (pH) | 20-30cm soil pH (pH) |
| 1 | █ Grizzly Offset Disc | █ 1 t/ha Lime | 0.3 | 0.17 | 0.8 | 4.1 | 3.6 | 3.6 | 4.9 | 3.9 | 3.77 |
| 1 | █ Grizzly Offset Disc | █ 2 t/ha Lime | 0.13 | -0.17 | -0.13 | 4.9 | 3.9 | 3.8 | 4.77 | 4.03 | 3.63 |
| 1 | █ Grizzly Offset Disc | █ 3 t/ha Lime | -0.2 | -0.43 | 0.47 | 4.2 | 4 | 4.1 | 4.67 | 3.8 | 3.67 |
| 2 | █ Grizzly Offset Disc | █ 4 t/ha Lime | 0.47 | 0.07 | 1.1 | 4.6 | 3.9 | 3.8 | 5.7 | 4.37 | 3.87 |
| 2 | █ Grizzly Offset Disc | █ 2t/ha Lime + Gypsum | 0.13 | -0.07 | 1.03 | 3.8 | 3.7 | 3.6 | 4.83 | 3.83 | 3.53 |
| 2 | █ Deep ripping | █ 1 t/ha Lime | -0.07 | -0.13 | 0.27 | 5 | 3.8 | 3.8 | 5.27 | 3.73 | 3.67 |
| 3 | █ Deep ripping | █ 2 t/ha Lime | -0.2 | 0.03 | 0.13 | 4.8 | 4 | 3.7 | 4.93 | 3.8 | 3.73 |
| 3 | █ Deep ripping | █ 3 t/ha Lime | 0.67 | 0.17 | 0.6 | 4.9 | 3.6 | 4 | 5.5 | 4.27 | 4.17 |
| 3 | █ Deep ripping | █ 4 t/ha Lime | 0.13 | -0.2 | 1 | 4.1 | 3.7 | 3.8 | 5.1 | 3.83 | 3.6 |
| 4 | █ Deep ripping | █ 2t/ha Lime + Gypsum | 0.4 | 0.37 | 0.9 | 3.9 | 3.5 | 3.5 | 4.8 | 3.9 | 3.87 |
| 4 | █ DBS | █ 1 t/ha Lime | 0.07 | -0.1 | 1 | 4.5 | 3.9 | 3.8 | 5.5 | 3.97 | 3.7 |
| 4 | █ DBS | █ 2 t/ha Lime | 0.1 | -0.2 | 1.07 | 4.1 | 3.8 | 3.8 | 5.17 | 3.9 | 3.6 |
| 5 | █ DBS | █ 3 t/ha Lime | 0.07 | -0.07 | 0.83 | 4.5 | 3.9 | 3.7 | 5.33 | 3.97 | 3.63 |
| 5 | █ DBS | █ 4 t/ha Lime | 0.23 | -0.1 | 1.6 | 4.2 | 3.7 | 3.9 | 5.8 | 3.93 | 3.8 |
| 5 | █ DBS | █ 2t/ha Lime + Gypsum | 0.23 | 0.03 | 1.63 | 4 | 3.7 | 3.7 | 5.63 | 3.93 | 3.73 |
| 6 | █ Deep Rip & Spading | █ 1 t/ha Lime | 0.53 | 0.1 | -1.3 | 5.5 | 3.9 | 3.7 | 4.2 | 4.43 | 3.8 |
| 6 | █ Deep Rip & Spading | █ 2 t/ha Lime | 0.63 | 0.07 | 0.33 | 4.3 | 3.7 | 3.7 | 4.63 | 4.33 | 3.77 |
| 6 | █ Deep Rip & Spading | █ 3 t/ha Lime | 0 | -0.17 | -0.07 | 4.3 | 3.7 | 3.8 | 4.23 | 3.7 | 3.63 |
| 7 | █ Deep Rip & Spading | █ 4 t/ha Lime | 0 | -0.1 | 0.3 | 3.9 | 3.6 | 3.7 | 4.2 | 3.6 | 3.6 |
| 7 | █ Deep Rip & Spading | █ 2t/ha Lime + Gypsum | 0.93 | 0.47 | 0.27 | 4.1 | 3.6 | 3.6 | 4.37 | 4.53 | 4.07 |
| 7 | █ One Way Plough | █ 1 t/ha Lime | -0.03 | -0.13 | 1.2 | 4.2 | 3.9 | 3.9 | 5.4 | 3.87 | 3.77 |
| 8 | █ One Way Plough | █ 2 t/ha Lime | 0.4 | -0.4 | 1.03 | 4 | 3.5 | 3.9 | 5.03 | 3.9 | 3.5 |
| 8 | █ One Way Plough | █ 3 t/ha Lime | 0.13 | 0.17 | 0.9 | 3.9 | 3.5 | 3.5 | 4.8 | 3.63 | 3.67 |
| 8 | █ One Way Plough | █ 4 t/ha Lime | -0.03 | -0.27 | 1.3 | 4.1 | 3.9 | 3.9 | 5.4 | 3.87 | 3.63 |
| 9 | █ One Way Plough | █ 2t/ha Lime + Gypsum | 0.4 | 0.13 | 0.7 | 4.2 | 3.5 | 3.7 | 4.9 | 3.9 | 3.83 |
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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 (