Maintaining profitable farming systems with retained stubbles in the Upper North of SA

2014

Research organisaton
Funding source

Trial details

Researcher(s) John Carey (UNFS)
Joe Koch (UNFS)
Matt McCallum (UNFS)
Ruth Sommerville (UNFS)
Year(s) 2014
Contributor Upper North Farming Systems
Trial location(s) Jamestown, SA
Maintaining profitable farming systems with retained stubbles in the Upper North of SA locations
Aims

To demonstrate whether current seeder set ups within the region are capable of successfully sowing wheat into a pasture with no-till. 

Key messages
  • • All machines tested in this trial successfully established a no-till wheat crop after pasture
    • On average across all machines, there was no positive response to pre-sowing cultivation on yield
Lead research organisation Upper North Farming Systems
Host research organisation Upper North Farming Systems
Trial funding source GRDC
Related program Maintaining profitable farming systems with retained stubble
Acknowledgments

• John Carey - grower co-operator and yield data collection
• John Carey, Gavin Schwark, Tony Jarvis and Dustin Berryman for providing and operating their equipment to get the demonstration sown.
• Michael Wells PCT Ag - yield data analysis


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

Method

Crop type Cereal (Grain): Wheat
Treatment type(s)
  • Sowing: Placement
  • Stubble: Management
Trial type Demonstration
Trial design Unreplicated

Jamestown 2014

Sow rate or Target density 75kg/ha
Sowing machinery

Please see trial report for details

Sow date 21 May 2014
Harvest date Unknown
Plot size Not specified
Plot replication 1
Fertiliser

sowing: 32:10 @ 120kg/ha

Herbicide

Pre-Em: 1.3l/ha Tifluralin

Other trial notes

Yield varied from 0.76 to 4.03t/ha across the paddock according to the yield map. Most of the yield variation was due to soil type with higher yield on the limey rising ground and the lower yield on the clay soil type. On average, there was no positive response to cultivation on yield (Table 2 and Figure 1). Assessment of impact on Annual Ryegrass populations found Ryegrass numbers to be low across the paddock (<1/m2) and there was no difference between treatments. Most of the ry

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Download results

Trial results Table 1

# Variety
Treatment 1
Grain yield (t/ha) Establishment plants (plants/m2) Seed depth (average) (cm)
1 mace wheat No-Till 2.56 120 2.8
2 mace wheat Cultivated January 2.25 142 2.8
3 mace wheat Cultivated April 2.61 109 1.7
4 mace wheat Cultivated January and April - 104 3.9
5 mace wheat No-Till 2.7 108 2.5
6 mace wheat Cultivated April 2.56 116 2.9
7 mace wheat No-Till 2.51 136 3.5
8 mace wheat Cultivated April 2.46 149 2.9
9 mace wheat No-Till 2.26 136 1.9
10 mace wheat Cultivated April 2.64 104 2.8

Grain yield t/ha


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Establishment plants plants/m2


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Seed depth (average) cm


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Observed trial site soil information
Trial site soil testing
Not specified
Soil conditions
Trial site Soil texture
Jamestown, SA Not specified
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Jamestown, SA Sodosol
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 Jamestown SA
2014 627.3mm
2013 627.3mm
2012 650.2mm
2011 658.4mm
2010 654.0mm
2009 638.7mm
2008 610.6mm
2007 614.5mm
2006 614.9mm
2005 621.3mm
2004 580.3mm
2003 560.2mm
2002 558.8mm
2001 571.8mm
2000 513.6mm
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

Derived climate information

No observed climate data available for this trial.
Derived climate data is determined from trial site location and national weather sources.

Jamestown SA

CAUTION: Trial site locality unknown; Climate data sourced from Upper North Farming Systems office location
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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

2014 trial report



Trial last modified: 26-05-2023 14:12pm AEST