| Researcher(s) |
Stephen Davies (DAFWA) |
|---|---|
| Year(s) | 2009 |
| Contributor | West Midlands Group |
| Trial location(s) |
Badgingarra, WA
|
To assess the impact of various levels of soil disturbance (cultivation methods) on water repellence and productivity and the interaction of these cultivation methods with soil amendments, lime and clay.
| Lead research organisation | N/A |
|---|---|
| Host research organisation | N/A |
| Trial funding source | GRDC |
| Related program | N/A |
| Acknowledgments |
Funding for this research was provided by the GRDC. We would like to thank the West Midlands Group trials committee and Gary Peacock, John Auld, Andrew Kenny, Dennis Martin, David Hayes, Steve Cosh (DAFWA), Larry Prosser (DAFWA) for helping establish the trial and Dave Gartner (Aglime) for providing the limesand for the trial. |
| Other trial partners | Not specified |
| Crop type | Cereal (Grain): Wheat |
|---|---|
| Treatment type(s) |
|
| Trial type | Experimental |
| Trial design | Replicated |
| Sow rate or Target density | 90kg/ha |
|---|---|
| Sow date | 28 May 2009 |
| Harvest date | Not specified |
| Plot size | Not specified |
| Plot replication | Not specified |
| Fertiliser |
80kg/ha Agstar Extra IBS |
| Soil amelioration |
Soil amendment treatments applied on 8th April, cultivation treamtents applied 21st April as per trial report |
| # | Variety |
Treatment 1
|
Treatment 2
|
Plant density (plants/m2) | Water droplet penetration time (seconds) | Organic carbon 0-10cm (t/ha) | Organic carbon 10-20cm (t/ha) | Organic carbon 20-30cm (t/ha) | Organic carbon 0-30cm (t/ha) | Resistance at 20cm (MPa) | Resistance at 30cm (MPa) | 0-10cm clay (%) | Head abundance (heads/m2) | Grain yield (t/ha) | Shoot dry weight (t/ha) | Head dry weight (t/ha) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | █ Calingiri | █ Nil | █ Nil | 127 | 320 | 12.8 | 5.6 | 3.1 | 21.5 | 2.8 | 4 | 3.7 | ||||
| 2 | █ Calingiri | █ Nil | █ Clay | 116 | 1 | 11.1 | 5.5 | 2.4 | 19 | - | - | 4.2 | ||||
| 3 | █ Calingiri | █ Nil | █ | 301 | 2 | 6.2 | 3.6 | |||||||||
| 4 | █ Calingiri | █ Offset Discs | █ Nil | 68 | 190 | 11.5 | 5.8 | 3.6 | 20.9 | 2.3 | 3.7 | 3.4 | ||||
| 5 | █ Calingiri | █ Offset Discs | █ Clay | 94 | 1 | 13.3 | 5.5 | 3.3 | 22.1 | - | - | 4.2 | ||||
| 6 | █ Calingiri | █ Offset Discs | █ | 309 | 2.1 | 7 | 4 | |||||||||
| 7 | █ Calingiri | █ Rotary Hoe | █ Nil | 77 | 75 | 13.5 | 5 | 1.9 | 20.4 | 2.3 | 3.7 | 3.9 | ||||
| 8 | █ Calingiri | █ Rotary Hoe | █ Clay | 126 | 4 | 13.1 | 4.7 | 2.4 | 20.2 | - | - | 3.9 | ||||
| 9 | █ Calingiri | █ Rotary Hoe | █ | 294 | 2.1 | 6.2 | 3.5 | |||||||||
| 10 | █ Calingiri | █ Deep Ripping | █ Nil | 101 | 155 | - | - | - | - | 0.5 | 1.4 | 3.4 | ||||
| 11 | █ Calingiri | █ Deep Ripping | █ Clay | 84 | 1 | - | - | - | - | - | - | 4.9 | ||||
| 12 | █ Calingiri | █ Deep Ripping | █ | 320 | 2.4 | 7.3 | 4.3 | |||||||||
| 13 | █ Calingiri | █ Rotary Spader | █ Nil | 140 | 11 | 7.3 | 8.6 | 3.7 | 19.6 | 1.3 | 3.1 | 2.9 | ||||
| 14 | █ Calingiri | █ Rotary Spader | █ Clay | 141 | 4 | 10.2 | 8.6 | 3.7 | 22.5 | - | - | 3.4 | ||||
| 15 | █ Calingiri | █ Rotary Spader | █ | 302 | 2.2 | 6.7 | 4 | |||||||||
| 16 | █ Calingiri | █ Mouldboard (dry) | █ Nil | 100 | ||||||||||||
| 17 | █ Calingiri | █ Mouldboard (dry) | █ Clay | 96 | ||||||||||||
| 18 | █ Calingiri | █ Mouldboard (dry) | █ | 334 | 2.4 | 8.1 | 4.8 | |||||||||
| 19 | █ Calingiri | █ Mouldboard (wet) | █ Nil | 66 | 1 | 5.1 | 10.8 | 9.7 | 25.6 | 0.6 | 0.9 | 2.7 | ||||
| 20 | █ Calingiri | █ Mouldboard (wet) | █ Clay | 42 | 1 | 4 | 8.5 | 8.4 | 20.9 | - | - | 2.4 | ||||
| 21 | █ Calingiri | █ Mouldboard (wet) | █ | 330 | - | 8 | 4.9 |
| Rainfall trial gsr (mm) | 447mm |
|---|
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.
