| Researcher(s) |
Jeremy Curry Mark Seymour |
|---|---|
| Contact email | Jeremy.Curry@dpird.wa.gov.au |
| Contact phone | 0890831160 |
| Year(s) | 2020 |
| Contributor | Department of Primary Industries and Regional Development WA |
| Trial location(s) |
Gibson, WA
|
Understand the critical nutrients required to achieve high yielding (>3t/ha) canola crops, especially when wanting to chase yields with high N in-season.
Canola yield increased significantly up to, but not above, 200 kg N/ha.
There was little benefit to applying above 15P or any K, S or trace elements.
Fertilisers (both banded and top-dressed) significantly decreased plant establishment and early growth.
| 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 Region project, funded by GRDC and run in collaboration by DPIRD, CSIRO and FAR Australia. Thanks to Esperance RSU for trial management and Helen Cooper for providing technical assistance. |
| Other trial partners | FAR Australia, CSIRO |
| Crop type | Oilseed: Canola |
|---|---|
| Treatment type(s) |
|
| Trial type | Experimental |
| Trial design | Replicated |
| Sow rate or Target density | 4.45kg/ha (to target 50 plants/m2 at 5.07mg seed weight) |
|---|---|
| Sow date | 29 April 2020 |
| Harvest date | 10 November 2020 |
| Trial design method | SPD Split Plot Design |
| Plot size | 2m x 20m |
| Plot replication | 3 |
| Plot randomisation | Y |
| Fertiliser |
Please refer to the trial report for treatment details |
| Herbicide |
IBS – 2 L/ha SpraySeed (135g/L paraquat + 115g/L diquat) + 1.5LHa TriflurX (480g/L trifluralin) + 1.1kg/ha Atragranz (900g/kg atrazine) 25-June 500ml/ha Clethodim 240 (240g/L clethodim) + 100ml/ha Haloxyfop 520 (520g/L haloxyfop-P) + 500ml/ha Uptake oil. |
| Insecticide |
PSPE – 1L/ha Pyrinex Super (400g/L chlorpyrifos + 20g/L bifentrhin) 7-August – 50ml/ha Transform (240g/L sulfoxaflor) + 500ml/ha Uptake oil. |
| Fungicide |
4.45kg/ha (to target 50 plants/m2 at 5.07mg seed weight) |
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.
