Winter and Spring Barley Trials: Nitrogen Use Efficiency Trial – Nitrogen Timing Trial (Coonawarra)

2021 - 2022

Research organisaton
Funding sources

Trial details

Researcher(s) Ben Morris
Nick Poole
Kenton Porker
Contact email Ben.Morris@faraustralia.com.au
Year(s) 2021 - 2022
Contributor Field Applied Research (FAR) Australia
Trial location(s) Coonawarra, SA
Winter and Spring Barley Trials: Nitrogen Use Efficiency Trial – Nitrogen Timing Trial (Coonawarra) locations
Aims

To evaluate nitrogen use efficiency in winter barley under different rates and timings of applied N fertiliser applied as urea (46% N) grown on surface irrigation.

Key messages

• Barley yields cv RGT Planet of over 6t/ha were achieved in 106 days from sowing to harvest with no applied nitrogen.
• Yield was maximised with no addition of nitrogen fertiliser.
• At the highest rate of 240 kg N/ha, there was a significant reduction in yield (6.03t/ha) compared to where no nitrogen was applied (6.24 t/ha).
• There was no difference in grain yield when nitrogen application timing was varied.
• Grain protein increased as higher rates of N were applied up to 160 kg N/ha. Between 160 and 240 kg N/ha, there was no difference in grain protein.
• The grain protein was too high to achieve malt quality in all application timings and rates of nitrogen in this trial.

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 B21-04-2
Related program N/A
Acknowledgments N/A
Other trial partners Not specified
Download the trial report to view additional trial information

Method

Crop type Cereal (Grain): Barley
Treatment type(s)
  • Fertiliser: Rate
  • Fertiliser: Timing
Trial type Experimental
Trial design Replicated

Coonawarra 2021

Sow date 28 October 2021
Harvest date 1 February 2022
Plot size Not specified
Plot replication Not specified
Psuedoreplication Not specified
Fertiliser

Please see report for rates for application times. 

Soil amelioration

 Fallowed for 2 weeks prior to sowing

Coonawarra 2022

Sow date Not specified
Harvest date Not specified
Plot size Not specified
Plot replication Not specified
Psuedoreplication Not specified
Fertiliser Not specified
Soil amelioration Not specified
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
Coonawarra, SA Not specified
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Coonawarra, SA Podosol
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.

Coonawarra SA

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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

2021 trial report



Trial last modified: 08-01-2025 10:59am AEST