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Row spacing by variety by nitrogen demonstration in wheat

2006
CC BY 4.0

Research organisation
Southern Farming Systems

Trial details

Researcher(s) Gary Sheppard (SFS)
Rohan Wardle (SFS)
Charles Wynne (SFS)
Year(s) 2006
Contributor Southern Farming Systems
Trial location(s) Yalla-Y-Poora, VIC
Row spacing by variety by nitrogen demonstration in wheat locations
Aims

This demonstrations was conducted for three significant reasons.

  • 1. Assess the potential yield losses when increasing the seed row width for the benefits of subsequent inter-row (no-till) cropping;
  • 2. Determine if nitrogen application efficiency can be increased in wider row spacing scenarios by applying product either up front or in crop;
  • 3. Assess the varietal response to row spacing width to determine yield in response to nitrogen timing and row widths.
Key messages

Whilst the year was dry, there appeared to be a significant yield difference between varieties, no matter what the row spacing or nitrogen treatment. When analysis was undertaken to compare row spacing, nitrogen and variety responses, there still appeared to be significant differences within one variety, suggesting the importance of row width and nitrogen placement.

Lead research organisation N/A
Host research organisation N/A
Related program N/A
Acknowledgments

Kym Dolling and Phil McEvoy for allow SFS to conduct trials on their property. Stephen Jefferies and Russell Eastwood (AGT) and Brian Hare (Pacific Seeds) for supplying wheat seed.
Other trial partners Not specified
Download the trial report to view additional trial information

Method

Crop type Cereal (Grain): Wheat
Treatment type(s)
  • Crop : Variety
  • Fertiliser : Timing
  • Sowing : Row Spacing
Trial type Experimental
Trial design Replicated,Blocked

Yalla-Y-Poora 2006

Sow rate or Target density 100kg/ha
Sow date 14 June 2006
Harvest date 25 January 2007
Plot size 2m x 10m
Plot replication 4
Download the trial report to view additional method/treatment information

Download results

Trial results Table 1

# Variety
 Treatment 1
Grain yield (t/ha)
1 █ Bolac █ 400mm rows; 37N @GS32 2.18333
2 █ Qt11658 █ 400mm rows; 37N @GS32 1.3
3 █ Rac1262 █ 400mm rows; 37N @GS32 2.51667
4 █ Bolac █ 400mm rows; 37N @GS00 2.23333
5 █ Qt11658 █ 400mm rows; 37N @GS00 1.25
6 █ Rac1262 █ 400mm rows; 37N @GS00 2.71667
7 █ Bolac █ 200mm rows; 37N @GS32 2.33333
8 █ Qt11658 █ 200mm rows; 37N @GS32 1.46667
9 █ Rac1262 █ 200mm rows; 37N @GS32 2.88333
10 █ Qt11658 █ 200mm rows; 37N @GS00 1.31667
11 █ Rac1262 █ 200mm rows; 37N @GS00 3.06667

Grain yield t/ha

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Observed trial site soil information
Trial site soil testing
Not specified
Soil conditions
Trial site Soil texture
Yalla-Y-Poora, VIC Not specified
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Yalla-Y-Poora, VIC 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 Yalla-Y-Poora VIC
2006
2005
2004
2003
2002
2001
2000

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.

Yalla-Y-Poora VIC

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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

2006 trial report



Trial last modified: 24-01-2023 16:17pm AEST