| Researcher(s) |
Bob French Mark Seymour |
|---|---|
| Year(s) | 2013 |
| Contributor | Department of Agriculture and Food WA |
| Trial location(s) |
Merredin, WA
|
Aim; To investigate the response to changing the nitrogen rate and changing the time of application. Canola yield and oil will be measured and RR hybrids will be compared with open-pollinated TT types (OP TT).
Previous trial results suggest that as long as nitrogen is applied within 8 weeks of sowing, there is no yield penalty.
How canola responds to nitrogen applied later than 8 weeks has not been widely researched. Similarly how new generation canola such as RoundupReady (RR) hybrids respond to nitrogen has not been widely tested, particularly in low and medium rainfall areas. This trial is one of a series of 13 timing of nitrogen experiments DAFWA conducted in 2013.
| Lead research organisation |
Department of Agriculture and Food WA |
|---|---|
| Host research organisation | N/A |
| Trial funding source | GRDC DAW00227 |
| Related program | N/A |
| Acknowledgments |
This trial is one of a series conducted throughout WA as part of the GRDC/DAFWA co-funded project “Tactical Break Crop Agronomy in Western Australia”. Thanks to Matt Harrod of the Merredin RSU for trial management. Laurie Maiolo (DAFWA. Merredin) provided technical assistance to ensure all treatments and measurements occurred in a timely and accurate fashion. |
| Other trial partners | Not specified |
| Crop type | Oilseed: Canola |
|---|---|
| Treatment type(s) |
|
| Trial type | Experimental |
| Trial design | Replicated |
| Sow rate or Target density | 30 plants/m² |
|---|---|
| Sow date | 3 May 2013 |
| Harvest date | Not specified |
| Plot size | Not specified |
| Plot replication | 3 |
| Fertiliser |
Fertiliser (kg/ha): 50 kg/ha of double super at seeding, 120 kg/ha of Muriate of Potash and 400 kg/ha of gypsum (17% Ca, 14% S) topdressed over whole site 4 weeks after seeding |
| Rainfall avg gsr (mm) | 193mm |
|---|
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.
