| Researcher(s) |
Ben Biddulph (DAFWA) Sheree Blechynden (Facey Group) Sarah Hyde (Living Farm) Rebecca Jenkinson (Living Farm) |
|---|---|
| Year(s) | 2014 |
| 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.
Insufficient frost events occurred at Wickepin during the susceptible windows in 2014 to cause significant frost damage. Temperature results demonstrated that low in the landscape retained stubble increased the severity of the frost in one of the 10 frost events, but also increased the duration of frost events. Results from 2014 were not conclusive at Wickepin to demonstrate whether retaining stubble increases the incidence or severity of frost.
| Lead research organisation | N/A |
|---|---|
| Host research organisation |
Facey Group |
| Trial funding source | GRDC DAW00214 |
| Related program | N/A |
| Acknowledgments |
Karyn Reeves, DAFWA Statistician, GRDC for funding the trial. Peter Hanson, Theweatherlogger 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 trials;, Gary Lang, Wyoming Downs. |
| Other trial partners | Not specified |
| 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 2014 |
| Harvest date | Not specified |
| Plot size | 30m x 200m |
| Plot replication | 3 |
| Paddock history | 2013- Wheat |
| 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 | █ Low landscape | █ Standing Stubble | 4.38 | 0.59 | 114 |
| 2 | █ Mace | █ Low landscape | █ Removed Stubble | 4.39 | 0.63 | 114 |
| 3 | █ Mace | █ Low landscape | █ Cultivated | 4.61 | 0.55 | 115 |
| 4 | █ Mace | █ Mid Landscape | █ Standing Stubble | 4.95 | 0.6 | 114 |
| 5 | █ Mace | █ Mid Landscape | █ Removed Stubble | 3.89 | 0.53 | 112 |
| 6 | █ Mace | █ Mid Landscape | █ Cultivated | 5.09 | 0.6 | 114 |
| 7 | █ Mace | █ High landscape | █ Standing Stubble | 3.05 | 0.46 | 115 |
| 8 | █ Mace | █ High landscape | █ Removed Stubble | 3.58 | 0.4 | 113 |
| 9 | █ Mace | █ High landscape | █ Cultivated | 4.51 | 0.57 | 113 |
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.
