Nitrogen timing for wheat and barley


Research organisatons

Trial details

Researcher(s) Erin Cahill and Stephen Loss (CSBP)
Year(s) 2006
Contributor Liebe Group
Trial location(s) Site 2, Buntine, WA
Nitrogen timing for wheat and barley locations

To compare the optimum rate and timing of nitrogen applications (Flexi-N) for the yield and quality of Wyalkatchem wheat and Baudin barley.

Key messages

Crop growth and yield potential were severely limited by one of the driest seasons on record at this site. Hence, the very poor grain yields and no response to nitrogen applications.

Lead research organisation CSBP
Host research organisation N/A
Related program N/A

The authors thank Dan Bell and Ryan Guthrie (CSBP) for their contribution to the trial.

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


Crop types Barley
Treatment type(s)
  • Crop: Type
  • Fertiliser: Rate
  • Fertiliser: Application
Trial type Experimental
Trial design Replicated

Buntine 2006 Barley

Sow date 31 May 2006
Harvest date Not specified
Plot size 20m x 2.1m
Plot replication 3

Basal – 140 MacroPro Extra + 400 mL/ha Impact coated


Wheat plots sprayed with 2.0L Treflan, 2.0L Sprayseed & 35g Logran. Barley plots sprayed with 1.8L Treflan 2.0L Sprayseed & 135g Lexone.

Buntine 2006 Wheat

Sow date Not specified
Harvest date Not specified
Plot size Not specified
Plot replication Not specified
Fertiliser Not specified
Herbicide Not specified
Download the trial report to view additional method/treatment information

Download results

Trial results Table 1

# Variety
Treatment 1
Grain yield (t/ha)
1 Baudin 0 L/ha Flexi N + 60 L/ha Flexi N 0.33
2 Baudin 100 L/ha + 0 L/ha Flexi N 0.34
3 Baudin 100 L/ha + 60 L/ha Flexi N 0.38
4 Baudin 100 L/ha Flexi N + 0 L/ha Flexi N 0.35
5 Baudin Nil Flexi N 0.29
6 Wyalkatchem 0 L/ha Flexi N + 60 L/ha Flexi N 0.35
7 Wyalkatchem 100 L/ha + 0 L/ha Flexi N 0.38
8 Wyalkatchem 100 L/ha + 60 L/ha Flexi N 0.37
9 Wyalkatchem 100 L/ha Flexi N + 0 L/ha Flexi N 0.33
10 Wyalkatchem Nil Flexi N 0.32

Grain yield t/ha

Observed trial site soil information
Trial site soil testing
Site Depth Type pH EC P K N A OC CAT
Site 2, Buntine, WA 0 - 10cm Sandy loam
Site 2, Buntine, WA 10 - 30cm Sandy loam
Soil conditions
Trial site Soil texture
Site 2, Buntine, WA Sandy loam
Derived trial site soil information
Australian Soil Classification Source
Trial site Soil order
Site 2, Buntine, WA Kandosol
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 2, Buntine WA 2006

Observed climate information

Rainfall trial gsr (mm) 122mm

Derived climate information

Site 2, Buntine WA


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: 26-11-2019 15:33pm AEST