Irrigated Oat Agronomy - Grazing Recovery Trial


Research organisatons
Funding source

Trial details

Researcher(s) Damian Jones ICC
Year(s) 2016
Contributor Irrigated Cropping Council
Trial location(s) Site 2, Kerang, VIC
Irrigated Oat Agronomy - Grazing Recovery Trial locations

To test the grazing recovery of three milling oat varieites, Bannister, Durack and Yallara

Key messages

Bannister had the highest grain yields with 9.00 t/ha.

Grazing did impact on yield in Bannister, but not Durack or Yallara.

Additional N above the control did not increase grain yields. Based on the trial results, Bannister nitrogen requirement was 25 kg N/t, whereas Yallara and Durack required 35 kg N/t.

Dry matter harvested (simulated grazing) at around GS31 ranged between 0.81 and 0.99 t/ha (NS)

Lead research organisation Department of Primary Industries NSW
Host research organisation Irrigated Cropping Council
Trial funding source GRDC DAN000198
Related program GRDC Southern Irrigated Cereal and Canola Varieties Achieving Target Yields
Acknowledgments N/A
Other trial partners Not specified
Download the trial report to view additional trial information


Crop type Oats
Treatment type(s)
  • Fertiliser: Rate
  • Grazing: Timing
  • Variety: Type
Trial type Experimental
Trial design Replicated

Kerang 2016

Sow rate or Target density 180 plants/m2
Sowing machinery

John Shearer tyned seeder

17.5 cm row spacing

Baker boots

Sow date 24 May 2016 Mid May
Harvest date 13 December 2016 Mid December
Plot size 15m x 1.42m
Plot replication 3
Paddock history Faba beans 2015

125 kg DAP/ha at sowing

18/08/2016: Topdressing with 100 kg urea/ha on the ungrazed plots

18/08/2016: Topdressing with 150 kg urea/ha on the grazed plots and "high" treatment


23/05/2016: 1.5 l/glyphosate 540, 75 ml/ha Goal

29/06/2016: 25 g/ha Glean


Seed treatment N/a
Inoculant N/a
Tillage Multidisced before sowing
Download the trial report to view additional method/treatment information

Download results

Trial results Table 1

# Variety
Treatment 1
Hectolitre weight (kg/hL) Screenings <2mm (%) Grain yield (t/ha) Biomass (t/ha)
1 Bannister Not Grazed 52.5 4.6 9
2 Bannister Grazed 51.6 8.3 7.37 0.89
3 Bannister High N 52.3 5.1 8.22
4 Durack Not Grazed 57.6 1.6 5.72
5 Durack Grazed 56.9 3.7 5.11 0.99
6 Durack High N 57.1 2.1 5.57
7 Yallara Not Grazed 57.2 1.8 5.09
8 Yallara Grazed 56.8 3.6 5.48 0.81
9 Yallara High N 58.5 2.2 4.69

Grain yield t/ha


Biomass t/ha


Hectolitre weight kg/hL


Screenings <2mm %

Observed trial site soil information
Trial site soil testing
Not specified
Soil conditions
Trial site Soil texture
Site 2, Kerang, VIC Not specified
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Site 2, Kerang, VIC Vertosol
Soil Moisture Source: BOM/ANU
Average amount of water stored in the soil profile during the year, estimated by the OzWALD model-data fusion system.
Year Site 2, Kerang VIC
2016 580.3mm
2015 540.8mm
2014 579.3mm
2013 586.9mm
2012 588.1mm
2011 602.5mm
2010 613.7mm
2009 533.8mm
2008 477.7mm
2007 431.2mm
2006 424.8mm
2005 428.4mm
2004 381.2mm
2003 367.1mm
2002 347.9mm
2001 424.8mm
2000 430.4mm
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



Site 2, Kerang VIC 2016

Observed climate information

Rainfall avg ann (mm) 375mm
Rainfall avg gsr (mm) 232mm
Rainfall trial total (mm) 470.5mm
Rainfall trial gsr (mm) 340.3mm

Derived climate information

Site 2, Kerang 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.