| Researcher(s) |
Jeremy Curry Mark Seymour |
|---|---|
| Contact email | jeremy.curry@dpird.wa.gov.au |
| Contact phone | 0890831160 |
| Year(s) | 2022 |
| Contributor | Department of Primary Industries and Regional Development WA |
| Trial location(s) |
Gibson, WA
|
To determine whether macronutrient supply (phosphorus, potassium, sulfur) becomes limiting as canola growers target high yields with high nitrogen rates in the high rainfall zone of WA.
Trial design: Factorial
| Lead research organisation |
Department of Primary Industries and Regional Development WA |
|---|---|
| Host research organisation | N/A |
| Trial funding source | GRDC DAW1903-008RMX |
| Related program | N/A |
| Acknowledgments |
This experiment has been conducted through the Optimising high rainfall zone cropping for profit in the Western and Southern Regions project, funded by GRDC and run through collaboration by DPIRD, CSIRO and FAR Australia. DPIRD gratefully acknowledge the Whiting family and their staff for generously providing the trial site and their assistance during the season. Thanks to Chris Matthews and the Esperance RSU for trial management and Helen Cooper for her technical assistance. |
| Other trial partners | FAR Australia, CSIRO |
| Crop type | Oilseed: Canola |
|---|---|
| Treatment type(s) |
|
| Trial type | Experimental |
| Trial design | Randomised |
| Sow rate or Target density | 3.9kg/ha (to target 40 plants/m2 at 5.49mg seed weight/180000 seeds per kg) |
|---|---|
| Sow date | 22 April 2022 |
| Harvest date | 29 November 2022 |
| Trial design method | O Other |
| Plot size | 10m x 1.9m |
| Plot replication | 6 |
| Fertiliser |
As per treatment list (refer to trial report) plus 23-June - 1kg/ha CuSO4 + 1kg/ha ZnSO4 + 4kg/ha MnSO4 |
| Herbicide |
IBS – 2 L/ha SpraySeed (135g/L paraquat + 115g/L diquat) + 2 L/ha Treflan (480g/L trifluralin) Post-em – 27-May – 75mL/ha Verdict 520 (520g/L haloxyfop) + 330mL/ha Select Xtra (360g/L clethodim) + 1.1kg/ha Atragranz (900g/kg atrazine) + 0.5% Uptake (582g/L paraffinic oil + 240g/L alkoxylated alcohol non-ionic surfactants) + 1% ammonium sulphate. Desiccation - 18-November – 3L/ha Reglone (200g/L diquat) + 0.16% BS1000 |
| Insecticide |
PSPE – 1L/ha Pyrinex Super (400g/L chlorpyrifos + 20g/L bifentrhin) |
| Fungicide |
22-April – 400ml/ha Impact (250g/L flutriafol) in-furrow 22-July – 450mL/ha Prosaro (210g/L prothioconazole + 210g/L tebuconazole) 12-August – 500mL/ha Aviator Xpro (150g/L prothioconazole + 75g/L bixafen) |
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.
