Getting nitrogen timing right to optimise yield and protein in barley


Research organisaton
Funding source

Trial details

Researcher(s) Linda Walters (BCG)
Year(s) 2017
Contributor Birchip Cropping Group
Trial location(s) Site 3, Longerenong, VIC
Further information View external link
Related trials
Getting nitrogen timing right to optimise yield and protein in barley locations

To determine if barley varieties show responses in grain yield and quality to nitrogen applied at different plant growth stage timings.

Key messages
  • Nitrogen (N) timing had no effect on yield or grain quality in 2017, when sown into a lentil stubble with a high amount of available N.
  • RGT Planet produced higher harvest biomass, more grains per head and higher yield than La Trobe and Compass.
  • N applied during tillering increased lodging in Compass, compared to later N application at flag leaf sheath extension, but it didn’t affect grain yield.
Lead research organisation Birchip Cropping Group
Host research organisation N/A
Trial funding source GRDC DAN00173
Related program Management of Barley and Barley Cultivars for the Southern Region

This research was funded by the GRDC as part of the ‘Barley agronomy for the Southern region’ project (DAN00173).

Other trial partners Not specified
Download the trial report to view additional trial information


Crop type Barley
Treatment type(s)
  • Fertiliser: Rate
  • Fertiliser: Timing
Trial type Experimental
Trial design Randomised,Replicated,Blocked

Longerenong 2017

Sow rate or Target density 130 plants/m²
Sowing machinery

Knife points, press wheels, 30cm row spacing

Sow date 14 May 2017
Harvest date 27 November 2017
Plot size Not specified
Plot replication Not specified

Granulock Supreme Z + Impact @ 60kg/ha at sowing. Refer to Table 1 for N treatments


15 May Trifluralin @ 1.5L/ha + Avadex Xtra® @ 2L/ha + glyphosate @ 2L/ha
28 June Velocity® @ 670mL/ha + MCPA LVE @ 400mL/ha + Lontrel® @ 300mL/ha + Hasten 1%


9 September Lorsban® @ 600mL/ha


20 July             Prosaro® @ 300mL/ha + BS1000 @.25%
9 September    Prosaro® @ 300mL/ha + BS1000 @ .25%

Seed treatment Systiva® @ 150mL/100kg seed + Gaucho® @ 240mL/100kg seed
Download the trial report to view additional method/treatment information

Download results

Trial results Table 1

# Variety
Harvest index (value) Biomass at maturity (GS99) (t/ha) Head abundance (heads/m2)
1 Compass 0.46 14.5 887
2 La Trobe 0.52 14.7 1015
3 RGT Planet 0.55 15.8 833

Biomass at maturity (GS99) t/ha


Harvest index value


Head abundance heads/m2

Observed trial site soil information
Trial site soil testing
Site Depth Type pH EC P K N A OC CAT
Site 3, Longerenong, VIC 0 - 10cm clay 30.00 1.20
Site 3, Longerenong, VIC 0 - 100cm clay 118.00
Soil conditions
Trial site Soil texture
Site 3, Longerenong, VIC Clay
Derived trial site soil information
Australian Soil Classification Source
Trial site Soil order
Site 3, Longerenong, VIC Vertosol
National soil grid Source
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



Site 3, Longerenong VIC 2017

Observed climate information

Rainfall trial total (mm) 424mm
Rainfall trial gsr (mm) 303mm

Derived climate information

Site 3, Longerenong VIC


Some data on this site is sourced from the Bureau of Meteorology

SILO weather estimates sourced from
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.

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Trial last modified: 05-07-2019 13:33pm AEST