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Lifting canola yields in the high rainfall zone on the south coast of Western Australia

2020

Important note

Research organisation
Funding sources
Department of Primary Industries and Regional Development WA
<abbr title='Department of Primary Industries and Regional Development (Western Australia)'>DPIRD WA</abbr> <abbr title='Grains Research and Development Corporation'>GRDC</abbr>

Trial details

Researcher(s) Sarah Belli
Jeremy Lemon
Contact email Vanessa.stewart@dpird.wa.gov.au
Year(s) 2020
Contributor Department of Primary Industries and Regional Development WA
Trial location(s) South Stirlings,WA, WA
Lifting canola yields in the high rainfall zone on the south coast of Western Australia locations
Aims
  • To maximise canola yields in the high rainfall zone, with a combination of high nitrogen rates and full fungicide protection.
  • Determine nitrogen distribution at crop maturity between the different mature plant material fractions; coarse material, fine and pod material and seed.
  • Determine the mineral N levels in summer-autumn following the canola crop
Key messages
  • The impact of nitrogen rate and fungicide strategy on canola grain yield and seed quality was investigated at two field sites.Increasing nitrogen rate decreased oil % in seed.
  • 280kg/ha nitrogen increased protein compared with the 100kg/ha treatment.
  • There was no impact of fungicide applications although the season was not conducive to disease development. Observations failed to detect disease in either trial.
  • Analysis of coarse and fine stubble fractions showed increasing N concentration and yield of each fraction with increasing N rate.
  • Higher amounts of soil mineral N were present at end of autumn 2021 following high rates of fertiliser N in the previous season.
  • High N fertiliser rates increase the N concentration of stubble residue and the total amount of stubble.
  • The higher soil N in the following season is only a small proportion of the additional fertiliser N, a small compensation for over fertilising should the previous canola crop yield well below expectation.
Lead research organisation Department of Primary Industries and Regional Development WA
Host research organisation N/A
Trial funding source DPIRD WA FFPJP13
Trial funding source GRDC DAW00256
Related program Regional Research Agronomy
Acknowledgments

Grower, Mal Thomson; DPIRD research scientists Jeremy Lemon, Carla Milazzo, and Jeremy Curry; Kalyx for field support.

Thanks to GRDC and DPIRD for co-investment in the ‘Building capacity in crop protection and crop production agronomy research and development in Western Australia’ project (DAW00256/DAW1512-001RTX)
Other trial partners Not specified
Download the trial report to view additional trial information

Method

Crop type Oilseed: Canola
Treatment type(s)
  • Crop : Variety
  • Fertiliser : Rate
  • Fertiliser : Timing
  • Fungicide : Rate
  • Fungicide : Timing
Trial type Experimental
Trial design Replicated

South Stirlings,WA 2020

Sow date Multiple - please see report
Harvest date Multiple- Please see report
Plot size Not specified
Plot replication Not specified
Fertiliser

Please refer to trial report for details
Fungicide

Please refer to trial report for details
Download the trial report to view additional method/treatment information
Trial source data and summary not available
Check the trial report PDF for trial results.
Observed trial site soil information
Trial site soil testing
Not specified
Soil conditions
Trial site Soil texture
South Stirlings,WA, WA Not specified
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
South Stirlings,WA, WA Podosol

Climate

Derived climate information

No observed climate data available for this trial.
Derived climate data is determined from trial site location and national weather sources.

South Stirlings,WA WA

NOTE: Exact trial site locality unknown - Climate data may not be accurate
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Some data on this site is sourced from the Bureau of Meteorology

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.

Trial report and links

Lifting canola yields in the high rainfall zone on the south coast of WA

Limited residual nitrogen after high rates on canola crops



Trial last modified: 26-11-2024 15:56pm AEST