| Researcher(s) |
Ben Biddulph (DAFWA) Sarah Hyde (Facey Group) Rebecca Jenkinson ( Living Farm) |
|---|---|
| Year(s) | 2013 |
| Contributor | Facey Group |
| Trial location(s) |
Wickepin, WA
|
To quantify the impact of stubble on the extent, severity and duration of frost and determine its effect on canopy temperature and grain yield.
Although the Wickepin site did not experience damaging frost events in 2013, results show that the severity (minimum temperature) and duration (hrs <0°C) of frost increased at positions lower in the landscape and was less severe under cultivation. Standing stubble treatments also showed colder temperatures than removed stubble treatments. These results also supported the two other trials conducted in Western Australia during 2013 that showed stubble can have an influence on crop canopy temperature.
| Lead research organisation |
Facey Group |
|---|---|
| Host research organisation |
Facey Group |
| Related program | N/A |
| Acknowledgments |
Gary Lang, Wyoming Downs for providing the trial site and setting up the stubble treatments, carrying out the seeding, agronomic management and harvest of the trial. Sarah Hyde, Facey Group for the site selection, data collection and sensor installation. Rebecca O’Leary, DAFWA Statistician, Peter Hanson, The weather logger for installation maintenance and data acquisition of onsite weather stations. The following people are acknowledged for their significant contribution for the successful completion of the trial; Richard Devlin and Rebecca Clarke, Living Farm, Nathan Height and Mike Baker, DAFWA. |
| Other trial partners | Department of Agriculture and Food |
| Crop type | Cereal (Grain): Wheat |
|---|---|
| Treatment type(s) |
|
| Trial type | Experimental |
| Trial design | Replicated |
| Sow rate or Target density | 65Kg/ha |
|---|---|
| Sow date | 31 May 2013 |
| Harvest date | Unknown |
| Plot size | 200m X 40m |
| Plot replication | 3 |
| Fertiliser |
35Kg/ha MAP, 30L/ha Flexi-N |
| # | Variety |
Treatment 1
|
Treatment 2
|
Grain yield (t/ha) | NDVI (.) | Maturity (days from seeding to flowering) (no. of days) |
|---|---|---|---|---|---|---|
| 1 | █ Mace | █ High Landscape | █ Standing | 3.05 | 0.46 | 115 |
| 2 | █ Mace | █ High Landscape | █ Removed | 3.58 | 0.4 | 113 |
| 3 | █ Mace | █ High Landscape | █ Cultivated | 4.51 | 0.57 | 113 |
| 4 | █ Mace | █ Mid landscape | █ Standing | 4.95 | 0.6 | 114 |
| 5 | █ Mace | █ Mid landscape | █ Removed | 3.89 | 0.53 | 112 |
| 6 | █ Mace | █ Mid landscape | █ Cultivated | 5.09 | 0.6 | 114 |
| 7 | █ Mace | █ Low Landscape | █ Standing | 4.38 | 0.59 | 114 |
| 8 | █ Mace | █ Low Landscape | █ Removed | 4.39 | 0.63 | 114 |
| 9 | █ Mace | █ Low Landscape | █ Cultivated | 4.61 | 0.55 | 115 |
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.
