Durum agronomy – improving grass control in durum

2012
CC BY 4.0

Research organisatons
Funding source

Trial details

Researcher(s) Kenton Porker (SARDI)
Rob Wheeler (SARDI)
Year(s) 2012
Contributor Hart Field Site Group
Trial location(s) Hart, SA
Durum agronomy – improving grass control in durum locations
Aims

To evaluate the relative weed competitiveness of barley, bread wheat, and durum against annual ryegrass grown under different management practices including seeding rate, nutrition, variety, and row spacing.

Key messages
  • Fathom barley was more competitive than Hindmarsh barley, bread wheat and durum
  • New durum variety Tjilkuri was no more competitive with ARG than older variety Tamaroi
  • Increasing seeding rate reduced ARG head density and increased grain yields in all durum varieties; low seeding rates led to large numbers of ryegrass heads
  • Narrower row spacing increased yield and reduced ARG head density in durum
  • Early applied N improved early vigour, and reduced ARG head densities, but led to yield penalties due to induced moisture stress
Lead research organisation South Australian Research and Development Institute
Host research organisation Hart Field Site Group
Trial funding source SAGIT
Related program N/A
Acknowledgments

Thanks to SAGIT for funding this research, SARDI Clare staff for trial management and the Hart Field-Site Group for provision of the land and extension of the work.


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

Method

Crop types Cereal (Grain): Wheat Cereal (Grain): Barley
Treatment type(s)
  • Crop: Type
  • Crop: Variety
  • Fertiliser: Rate
  • Management systems: Integrated weed management
  • Sowing: Rate
  • Sowing: Row Spacing
Trial type Experimental
Trial design Randomised,Replicated,Blocked

Hart 2012 Wheat

Sow date 30 May 2012
Harvest date Not specified
Plot size 1.4m x 10m
Plot replication Not specified
Fertiliser

DAP (18:20) + 2% Zn @ 70kg/ha

Post emergent nitrogen: 50kg N @ GS31

Hart 2012 Barley

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

Download results

Trial results Table 1

# Treatment 1
Grain yield (t/ha) Plant density (plants/m2)
1 200 sd/m2 Tamaroi (standard) 0.7 175.7
2 200 sd/m2 Tjikuri 0.63 163
3 100 sd/m2 Tamaroi 0.62 89.7
4 100 sd/m2 Tjikuri 0.66 87.9
5 300 sd/m2 Tamaroi 0.97 228.3
6 300 sd/m2 Tjikuri 0.96 237
7 Tamaroi (narrow rows) 0.78 155.4
8 Tjilkuri (narrow rows) 0.97 150.4
9 Tamaroi (early N) 0.42 147.7
10 Tjilkuri (early N) 0.45 152.6
11 Large seeded Tjilkuri 1.26 183.4
12 Fathom 3.28 154
13 Hindmarsh 2.85 139.9
14 Scout 1.53 176.8
15 UoA competitive Line 1.2 176.1

Grain yield t/ha


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Plant density plants/m2


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Observed trial site soil information
Trial site soil testing
Not specified
Soil conditions
Trial site Soil texture
Hart, SA Calcarosol
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Hart, SA Chromosol
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 Hart SA
2012 654.6mm
2011 683.8mm
2010 686.7mm
2009 669.9mm
2008 633.9mm
2007 649.9mm
2006 651.2mm
2005 675.4mm
2004 633.0mm
2003 652.2mm
2002 649.4mm
2001 674.5mm
2000 625.6mm
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

Hart SA 2012


Observed climate information

Rainfall trial gsr (mm) 168mm

Derived climate information

Hart 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

2012 trial report



Trial last modified: 06-08-2019 07:54am AEST