| Researcher(s) |
Mike Ashworth Richard Devlin Suman Rakshit Roberto Rocha Rebecca Smith |
|---|---|
| Year(s) | 2018 |
| Contributor | School of Agriculture and Environment - The University of Western Australia |
| Trial location(s) |
, WA
|
The objective of this study is to determine the optimal combinations of canola cultivar, seeding rate and row spacing on annual ryegrass seed production and canola growth and yield.
The results of this study suggest:
At the Mingenew site, canola yield was higher in open pollinated variety (Bonito). At Cunderdin, no effects were identified.
| Lead research organisation |
Australian Herbicide Resistance Initiative |
|---|---|
| Host research organisation |
Australian Herbicide Resistance Initiative |
| Trial funding source | GRDC 9175962 |
| Related program | N/A |
| Acknowledgments |
This research was funded by the Grains Research Development Corporation of Australia (GRDC). |
| Other trial partners | University of Adelaide |
| Crop types | Oilseed: Canola Weed: Ryegrass |
|---|---|
| Treatment type(s) |
|
| Trial type | Experimental |
| Trial design | Randomised,Replicated,Blocked |
| Sow rate or Target density | 20, 35 and 50 seeds/m2 |
|---|---|
| Sow date | Unknown |
| Harvest date | Unknown |
| Trial design method | RCBD Randomised Complete Block Design |
| Plot size | Not specified |
| Plot replication | 4 |
| Plot randomisation | Y |
| Fertiliser |
To ensure optimal canola growth, 70 kg/ha Gusto Gold (Summit Fertilisers Australia, N – 10.2%, P- 13.1%, K- 12%, S- 7.6%, Cu- 0.07%, Zn- 0.14% and Mn- 0.01%) treated with 300ml ha-1 Impact (250 g/L Flutriafol, Cheminova Australia) was drilled 3cm below the seed to minimise contact with the germinating canola seed with 100kg/ha of Urea (Summit Fertilisers Australia, N – 46%) broadcast evenly on the soil surface immediately after seeding. At the 4-6 leaf stage of the canola, 100L/ha of urea and ammonium nitrate liquid fertiliser (UAN) (Summit fertilisers Australia) (N- 32%) was evenly sprayed across the site to maintain growth. |
| Herbicide |
Immediately prior to seeding, all experimental areas were treated with 1.5L ha–1 Roundup Ultramax (Glyphosate 540 g/L, Sinochem Australia) and 150ml ha–1 Lontrel (Clopyralid 750g/L, DowAgrosciences Australia) to control all germinated weeds. The weed-free treatment was maintained using 1 L/ha Kerb (500 g/L Propyzamide, Dow AgroSciences Australia) incorporated by sowing (IBS), 1.1 kg/ha Atradex (900g/kg Atrazine, Nufarm Australia Limited) IBS followed by 1.1 kg/ha of Atradex and 500 mL/ha Select |
| Insecticide |
1L of Cruiser Opti [210 g/L Thiamethoxam 37.5 g/L Lambda-Cyhalothrin, Syngenta Australia] and 400 mL/100 kg Maxim XL [25 g/L Fludioxonil 10 g/L Metalaxyl-M Syngenta Australia] applied per 100 kg of seed. |
| Fungicide |
400 mL/100 kg Maxim XL [25 g/L Fludioxonil 10 g/L Metalaxyl-M Syngenta Australia] applied per 100 kg of seed |
| Sow rate or Target density | Not specified |
|---|---|
| Sow date | Not applicable |
| Harvest date | Not applicable |
| Trial design method | RCBD Randomised Complete Block Design |
| Plot size | Not specified |
| Plot replication | 3 |
| Plot randomisation | Y |
| Fertiliser | Not specified |
| Herbicide | Not specified |
| Insecticide | Not specified |
| Fungicide | Not specified |
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.
