Ben Biddulph (DAFWA), Rebecca Jenkinson (Living Farm), Sarah Hyde and Sheree Blechynden (Facey Group)
Site 11, Wickepin, WA
Determine if there is an interaction between temperature and various rates of stubble and outline whether increased stubble loads change the severtiy and duration of frost.
Temperature results from both sites have demonstrated that stubble loads above 2t/ha increased the severity and duration of some frost events. Analysis of results on yield and frost damage is ongoing and will be presented.
|Lead research organisation||N/A|
|Host research organisation||
|Trial funding source||GRDC|
National Frost Initiative
Scott Young and Steve Angwin for providing the trial site and oat/barley stubble for the treatments, carrying out the seeding and agronomic management. GRDC, for funding the research through the Frost Initiative, Karyn Reeves, DAFWA statistician, Peter Hanson, The WeatherLogger 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: Brenton Leske, Nathan Height and Mike Baker, DAFWA.
|Other trial partners||Not specified|
|Sow rate or Target density||70Kg/ha|
|Sow date||27 May 2014 27th May 2014|
|Harvest date||Not specified|
|Plot size||17m X 17m|
55kg/ha AgFLow, 50Kg/ha Urea
1.2L/ha Glyphosate, 350mL/ha 2-4-D Ester, 400g/ha Diuron, 2L/ha Trifluralin
|@T1: 23/9/2014||@T2: 6/10/2014||@T3: 7/10/2014|
||Grain yield (t/ha)||Average min. canopy temperature (C)||Average min. canopy temperature (C)||Average min. canopy temperature (C)|
|1||█ Mace||█ Stubble Rate 0T||3.7||0.28||-0.39||0.42|
|1||█ Mace||█ Stubble Rate 1T||3.7||0.2||-0.74||0.22|
|1||█ Mace||█ Stubble Rate 2T||3.7||0.27||-1.34||-0.26|
|1||█ Mace||█ Stubble Rate 4T||3.7||-0.37||-1.47||-0.26|
|2||█ Mace||█ Stubble Rate 8T||3.7||-0.25||-1.19||-0.17|
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.