Delayed harvest of barley - harvest treatment


Research organisaton
Funding source

Trial details

Researcher(s) Linda Walters (BCG)
Year(s) 2016
Contributor Birchip Cropping Group
Trial location(s) Site 1, Kalkee, VIC
Further information View external link
Related trials
Delayed harvest of barley - harvest treatment locations

To compare the yield and grain quality of barley varieties when harvest is delayed.

Key messages
  • Compass, Commander, Scope CL and Fathom were the varieties most affected by lodging when harvest was delayed in a very high yielding environment.
  • Spartacus CL and Oxford had better head retention than Fathom and Westminster which were the poorest.
  • Delaying harvest by three and a half weeks incurred a 2t/ha yield loss. In an 8t/ha crop this equates to one per cent of yield per day lost on average (based on 2016 data).
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 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)
  • Harvest: Timing
Trial type Experimental
Trial design Randomised,Replicated,Blocked

Kalkee 2016

Sow rate or Target density 140 plants/m²
Sowing machinery

Knife points, press wheels, 30cm row spacing

Sow date 8 May 2016
Harvest date Optimum harvest: 8 December 2016 Delayed harvest: 3 January 2017
Plot size Not specified
Plot replication Not specified

Granulock Supreme Z + Impact @ 50kg/ha at sowing plus @ 50kg/ha of urea at early tillering, mid tillering and late tillering


Sowing                  Treflan 1.5l/ha, Avadex Xtra 2l/ha, Roundup p max 2l/ha

7/7 GS23              Lontrel advanced 100ml, MCPA 600 300ml/ha, Velocity 670ml/ha, Uptake .5%


16/8                       Prosaro 300ml/ha, Spreadwet .25%

27/9                       Prosaro 300ml/ha, BS1000 .25%

Download the trial report to view additional method/treatment information

Download results

Trial results Table 1

# Treatment 1
Protein (%) Grain yield (t/ha) Retention (%) Screenings (%) Test weight (kg/hL) Head loss (no./m2)
1 Optimum harvest timing 10.1 8 88.6 3.5 68.8 5
2 Delayed harvest timing 10.3 6 90.7 3.2 63.4 83

Grain yield t/ha


Head loss no./m2


Protein %


Retention %


Screenings %


Test weight kg/hL

Observed trial site soil information
Trial site soil testing
Site Depth Type pH EC P K N A OC CAT
Site 1, Kalkee, VIC 0 - 10cm clay 31.00 1.00
Site 1, Kalkee, VIC 0 - 70cm 96.00
Soil conditions
Trial site Soil texture
Site 1, Kalkee, VIC Clay
Derived trial site soil information
Australian Soil Classification Source
Trial site Soil order
Site 1, Kalkee, 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 1, Kalkee VIC 2016

Observed climate information

Rainfall trial total (mm) 462mm
Rainfall trial gsr (mm) 374mm

Derived climate information

Site 1, Kalkee 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 13:38pm AEST