Canola trials: Nitrogen Efficiency Trial – Nitrogen Rates (Finley)

2021

Research organisaton
Funding sources

Trial details

Researcher(s) Ben Morris
Nick Poole
Kenton Porker
Contact email Ben.Morris@faraustralia.com.au
Year(s) 2021
Contributor Field Applied Research (FAR) Australia
Trial location(s) Finley, NSW
Canola trials: Nitrogen Efficiency Trial – Nitrogen Rates (Finley) locations
Aims

To examine the nitrogen use efficiency of canola grown under overhead irrigation when increasing rates of nitrogen fertiliser applied (Prilled Urea 46%N)

Key messages

• Seed yield (3.90 t/ha) was maximised when 240kg N/ha was applied as a two split application and although yield increased up to 320kg N/ha the advantage in seed yield was not statistically significant.
• There was no significant effect on seed oil content (45.9 – 48.3%) across the different rates of nitrogen fertiliser applied.
• When no nitrogen was applied the test weight was significantly lower (62.4 kg/hl) than all the other nitrogen applications (63.3 – 64.1 kg/hl).
• There was no significant difference in harvest index (HI) although values varied from 23 -31% with the N rates applied.
• Seed yield showed little relationship with dry matter content of the crop at 80% flowering.
• No removed in the crop canopy at flowering revealed a soil N supply of approximately 70kgN/ha in the absence of fertiliser applied.
• At 200kg N/ha applied fertiliser and below more N was removed in dry matter at flowering with N doses of 200kg N/ha and below.
• When applied fertiliser was 240kg /ha N or greater less N was removed in dry matter at flowering than was applied.

Lead research organisation Field Applied Research (FAR) Australia
Host research organisation N/A
Trial funding source GRDC FAR1906-003RTX
Trial funding source FAR FAR IRR C21-03-1
Related program N/A
Acknowledgments N/A
Other trial partners Not specified
Download the trial report to view additional trial information

Method

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

Finley 2021

Sow date 30 April 2021
Harvest date 4 December 2021
Plot size Not specified
Plot replication Not specified
Fertiliser

Please see report

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
Finley, NSW Not specified
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Finley, NSW Sodosol
National soil grid Source: CSIRO/TERN
NOTE: National Soil Grid data is aggregated information for background information on the wider area
Actual soil values can vary significantly in a small area and the trial soil tests are the most relevant data where available

Soil properties

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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.

Finley NSW

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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 last modified: 22-12-2022 11:06am AEST