Researcher(s) |
Dannielle McMillan (BCG) |
---|---|
Year(s) | 2012 |
Contributor | Birchip Cropping Group |
Trial location(s) |
Birchip, VIC
|
The project objectives were to: determine what effect stubble load and type had on YLS infection. Determine whether changing cultural practices would aid in reducing YLS incidence. Investigate the effect of fungicide application timing and nutrition on YLS severity.
The best strategy against yellow leaf spot is to avoid sowing susceptible varieties in a wheat-on-wheat situation. The effectiveness of foliar fungicides for the control of yellow leaf spot is often variable; appropriate timing is crucial. In a low rainfall environment, it is rare to achieve an economic response when applying fungicides to control yellow leaf spot. Under the right seasonal conditions, YLS can reduce yields by between 5-10%.
Lead research organisation | N/A |
---|---|
Host research organisation | N/A |
Trial funding source | Mallee CMA |
Related program | N/A |
Acknowledgments |
This trial was funded by Mallee CMA, and DPI conducted disease assessments. |
Other trial partners | Not specified |
Crop type | Cereal (Grain): Wheat |
---|---|
Treatment type(s) |
|
Trial type | Experimental |
Trial design | Replicated |
Sow date | 30 May 2012 |
---|---|
Harvest date | Not specified |
Plot size | Not specified |
Plot replication | 4 |
Fertiliser |
30 May - 50kg/ha Granulock supreme Z (N 11%, P 21.8%, S 4%, Zn 1%) 8 Aug - 90 kg/ha urea (46% N) |
Herbicide |
30 May Roundup Attack� (2 L/ha) + TriflurX� (1.5 L/ha) |
# |
Treatment 1
|
Treatment 2
|
Treatment 3
|
Protein (%) | Grain yield (t/ha) | Disease severity (% leaf area affected) | Gross margin ($/ha) |
---|---|---|---|---|---|---|---|
1 | █ Stubble burnt | █ | █ | 11.7 | 2.6 | 16.3 | |
2 | █ Stubble retained + fungicides | █ | █ | 11.82 | 2.4 | 17.5 | |
3 | █ Stubble retained (control) | █ | █ | 10.62 | 2.6 | 18.8 | |
4 | █ Stubble slashed | █ | █ | 10.88 | 2.5 | 21.3 | |
5 | █ Stubble incorporated | █ | █ | 11.12 | 2.2 | 17.5 | |
6 | █ | █ Nil Nutritional Treaments | █ | 9.5 | 2.3 | 579 | |
7 | █ | █ UAN+ Foliar Zinc | █ | 10.1 | 2.3 | 539 | |
8 | █ | █ Foliar Zinc | █ | 10.1 | 2.2 | 545 | |
9 | █ | █ UAN | █ | 10.6 | 2.3 | 600 | |
10 | █ | █ | █ Non-Infected Stubble (barley) | 2.6 | 13.1 | ||
11 | █ | █ | █ Barley and wheat stubble | 2.5 | 17.5 | ||
12 | █ | █ | █ Infected stubble (wheat) | 2.5 | 19.4 |
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.