Very wide wheat rows for shallow soil and dry seasons on the eastern edge of the NAR

2004
CC BY 4.0

Research organisatons
Funding source

Trial details

Researcher(s) Paul Blackwell (Department of Agriculture)
Year(s) 2004
Contributor Liebe Group
Trial location(s) Pindar, WA
Very wide wheat rows for shallow soil and dry seasons on the eastern edge of the NAR locations
Aims

To quantify the benefits of very wide rows for wheat quality and yield.

Key messages
  • Annual disc fallow provided no benefit this season and chemical fallow would be less profitable than whea ton wheat with 600mm row spacing.
  • Wilder rows produced a less 'bulky' crop with less biomass/grain weight.
Lead research organisation Department of Agriculture and Food WA
Host research organisation N/A
Trial funding source GRDC
Related program N/A
Acknowledgments
  • Technically reviewed by Bindi Webb.

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

Method

Crop type Cereal (Grain): Wheat
Treatment type(s)
  • Sowing: Row Spacing
Trial type Experimental
Trial design Replicated

Pindar 2004

Sow rate or Target density 60 kg/ha
Sow date 30 May 2004
Harvest date Unknown
Plot size 300m x 15m
Plot replication 4
Fertiliser

60 kg/ha DAPZn at seeding 25L FlexiN 30th June

Herbicide

Trifluralin 1 L/ha pre seeding; 4g Ally, 500mL MCPA and 3g Glean 30th June

Download the trial report to view additional method/treatment information

Download results

Trial results Table 1

@T1: Anthesis
# Treatment 1
Treatment 2
Treatment 3
Treatment 4
Grain yield (t/ha) Head abundance (heads/m2) Screenings (%) Harvest index (value) Plant density (plants/m2) Biomass (g/m2)
1 300/900mm 'Double Skip' Spacing 0.7
2 300/900mm DS Spacing, Wheat after Fallow 1.2 177 0.8 0.44 148 306
2 300/900mm DS Spacing, Wheat after Wheat 0.9 137 2.6 0.3 128 208
3 300mm Spacing 0.74
3 300mm Spacing, Soil Depth - Deep 0.87
4 300mm Spacing, Wheat after Fallow 1.3 196 0.6 0.5 148 362
5 300mm Spacing, Wheat after Wheat 0.7 152 5.9 0.4 154 248
6 300mm, Soil Depth - Shallow 0.52
6 600mm Spacing 0.77
7 600mm Spacing, Wheat after Fallow 1.2 206 0.9 0.45 181 343
7 600mm Spacing, Wheat after Wheat 0.8 160 2.6 0.35 175 253
8 600mm, Soil Depth - Deep 0.88
9 600mm, Soil Depth - Shallow 0.62
10 Wheat '04 After chemical fallow 2003 0.78
10 Wheat '04 After disc fallow 2003 0.7
11 Wheat '04 after wheat 2003 0.73
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Grain yield t/ha


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Biomass g/m2


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Harvest index value


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Head abundance heads/m2


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Plant density plants/m2


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Screenings %


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Observed trial site soil information
Trial site soil testing
Site Depth Type pH EC P K N A OC CAT
Pindar, WA 0 - 10cm Red loamy duplex
Pindar, WA 10 - 30cm Red loamy duplex
Soil conditions
Trial site Soil texture
Pindar, WA Red loamy duplex
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Pindar, WA Kandosol
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 Pindar WA
2004 276.8mm
2003 283.2mm
2002 257.9mm
2001 259.2mm
2000 309.2mm
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

Pindar WA 2004


Observed climate information

Rainfall trial gsr (mm) 150mm

Derived climate information

Pindar WA

CAUTION: Trial site locality unknown; Climate data sourced from Liebe Group 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

2004 trial report



Trial last modified: 23-01-2023 14:22pm AEST