Trial details
Researcher(s)
Paul Blackwell (Department of Agriculture)
Year(s)
2004
Contributor
Liebe Group
Trial location(s)
Pindar, WA
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
Method
Crop type
Cereal (Grain): Wheat
Treatment type(s)
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
Trial results Table 1
@T1: Anthesis
#
Treatment 1
Treatment 2
Treatment 3
Treatment 4
Grain yield (t/ha)
Harvest index (value)
Head abundance (heads/m2)
Plant density (plants/m2)
Screenings (%)
Biomass (g/m2)
1
█
█
300/900mm 'Double Skip' Spacing
█
█
0.7
2
█
300/900mm DS Spacing, Wheat after Fallow
█
█
█
1.2
0.44
177
148
0.8
306
2
█
300/900mm DS Spacing, Wheat after Wheat
█
█
█
0.9
0.3
137
128
2.6
208
3
█
█
300mm Spacing
█
█
0.74
3
█
█
█
300mm Spacing, Soil Depth - Deep
█
0.87
4
█
300mm Spacing, Wheat after Fallow
█
█
█
1.3
0.5
196
148
0.6
362
5
█
300mm Spacing, Wheat after Wheat
█
█
█
0.7
0.4
152
154
5.9
248
6
█
█
█
300mm, Soil Depth - Shallow
█
0.52
6
█
█
600mm Spacing
█
█
0.77
7
█
600mm Spacing, Wheat after Fallow
█
█
█
1.2
0.45
206
181
0.9
343
7
█
600mm Spacing, Wheat after Wheat
█
█
█
0.8
0.35
160
175
2.6
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
11
█
█
█
█
12
█
█
█
█
13
█
█
█
█
14
█
█
█
█
15
█
█
█
█
16
█
█
█
█
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
Trial site
Soil order
Pindar, WA
Kandosol
Average amount of water stored in the soil profile during the year, estimated by the
OzWALD model-data fusion system.
Year
Pindar WA
2004
2003
2002
2001
2000
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
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
