| Researcher(s) |
Catherine Borger Arslan Peerzada |
|---|---|
| Contact email | arslan.peerzada@dpird.wa.gov.au |
| Contact phone | 0460040840 |
| Year(s) | 2024 |
| Contributor | Department of Primary Industries and Regional Development WA |
| Trial location(s) |
Cape Burney, WA
|
| Related trials |
To investigate the effect of crop rotation and herbicide options in controlling Group 2 resistant great brome grass.
| Lead research organisation |
School of Agriculture, Food and Wine - The University of Adelaide |
|---|---|
| Host research organisation |
Western Australia No-tillage Farmers Association |
| Trial funding source | GRDC UOA2303-006RTX |
| Related program |
GRDC Crop Protection - Weeds |
| Acknowledgments |
This is a GRDC-invested project, UOA2303-006RTX Effective control of brome grass in the southern and western cropping zones. This site is managed by the WANTFA group as one of two sites across the wheatbelt that aim to evaluate the crop rotation benefits of a two or three-year break on the management of brome grass. Thanks to Living Farm for their assistance in implementing the trial. |
| Other trial partners | Department of Primary Industries and Regional Development |
| Crop type | Pasture: Mixed species |
|---|---|
| Treatment type(s) |
|
| Trial type | Experimental |
| Trial design | Randomised,Replicated |
| Sowing machinery |
Minimum tillage, knife points and press wheels, 25.4 cm spacing. Sowing depth: 10 mm Soil moisture to 5 cm depth: poor Stubble loading: 20% Clod size: none |
|---|---|
| Sow date | 23 May 2024 |
| Harvest date | 22 November 2024 |
| Trial design method | RCBD Randomised Complete Block Design |
| Plot size | 2.5m x 10m |
| Plot replication | 4 |
| Plot randomisation | N |
| Fertiliser |
MacroPro Xtra, 130 kg/ha, 23-May-24 Flexi-N, 100 L/ha, 15-Jul-24 |
| Herbicide |
Nufarm Weedmaster DST, 2 L/ha, 23-May-24 Application A - IBS, applied 23/5/24 as per protocol Application B - PE, applied 20/6/24 as per protocol
Protocol: The trial design had 6 different rotations, which will run from 2024 to 2026. In 2024, crops and herbicides included: 1. Continuous wheat with standard herbicides Wheat cv. Tomahawk CL Pre: Trifluralin Post: IMI 2. Nil IMI, diverse herbicides Wheat cv. Tomahawk CL Pre: Cinmethylin, triallate, sulfosulfuron Post: Aclonifen + diflufenican + pyroxasulfone 3. IWM - Low IMI, diverse herbicides, high seeding rate, cereal only Wheat cv. Tomahawk CL High seeding rate Pre: Trifluralin, pyroxasulfone, triallate 4. IWM - Single break Vetch Pre: propyzamide Post: Quizalofop-p-ethyl + [fomesafen + clethodim] 5. IWM - Double break Vetch Pre: propyzamide Post: Quizalofop-p-ethyl + [fomesafen + clethodim] 6. Fallow Fallow Post: Glyphosate |
| Insecticide |
Bifenthrin, 100 mL/ha, 23-May-24 Chlorpyrifos, 800 mL/ha, 23-May-24 |
| # | Variety |
Grain yield (t/ha) | Brome grass density (plants/m2) | Brome grass panicles (panicles/m2) | Brome grass seed yield (seeds/m2) |
|---|---|---|---|---|---|
| 1 | █ Wheat cv. Tomahawk CL. Pre: Trifluralin. Post: IMI | 0.14 | 2980 | 576 | 12039 |
| 2 | █ Wheat cv. Tomahawk CL. Pre: Cinmethylin, triallate, sulfosulfuron. Post: Aclonifen + diflufenican + | 0.05 | 1927 | 162 | 3347 |
| 3 | █ Wheat cv. Tomahawk CL. High seeding rate. Pre: Trifluralin, pyroxasulfone, triallate | 0.16 | 1577 | 375 | 7833 |
| 4 | █ Vetch. Pre: Propyzamide. Post: Quizalofop-p-ethyl | 0.9 | 28 | 2 | 4 |
| 5 | █ Fallow. Post: Glyphosate | 0 | 8689 | 0 | 0 |
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.
