Assessing the impact of nitrogen rate and timing across 2 different sowing rates for Kellalac wheat

2004 - 2005
CC BY 4.0

Research organisation

Trial details

Researcher(s) Dominic Bolton (SFS)
Colin Hacking (SFS)
Year(s) 2004 - 2005
Contributor Southern Farming Systems
Trial location(s) Hamilton, VIC
Lake Bolac, VIC
Assessing the impact of nitrogen rate and timing across 2 different sowing rates for Kellalac wheat locations
Aims
  • To assess the effect of nitrogen rate and timing on wheat yield and grain quality
  • To assess the impact of sowing rate on grain yield and quality
Key messages

The effect of nitrogen manipulation on grain yield and quality was masked by the inability to control foliar disease in the trial and the effect on yield of the dry October period. High base soil nitrogen levels resulted in high grain protein levels with little difference between treatments. The best net return was achieved using only the 10 kg/ha nitrogen at sowing. It did not pay to apply any post sowing nitrogen. Grain quality parameters such as test weight and thousand grain weights were extremely disappointing.

Lead research organisation N/A
Host research organisation N/A
Related program N/A
Acknowledgments N/A
Other trial partners Not specified
Download the trial report to view additional trial information

Method

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

Hamilton 2004

Sow date 11 May 2004
Harvest date 13 January 2005
Plot size 1.7m x 10m
Plot replication Not specified

Hamilton 2005

Sow date Not specified
Harvest date Not specified
Plot size Not specified
Plot replication Not specified

Lake Bolac 2004

Sow date 17 May 2004
Harvest date 16 January 2005
Plot size 10m x 1.7m
Plot replication Not specified
Download the trial report to view additional method/treatment information

Download results

Trial results Hamilton results

# Variety
Treatment 1
Protein (%) Screenings (%) Grain yield (t/ha) Test weight (kg/hL) 1000 grain weight (g)
1 Kellalac 9. 200 plants/m2; GS00 10 kgN/ha + GS31 75 kgN/ha + GS39 75 kgN/ha 12.28 5.99 1.37 62.81 28.61
2 Kellalac 8. 200 plants/m2; GS00 10 kgN/ha + GS39 150 kgN/ha 12.75 5.3 1.301 161.99 30.45
3 Kellalac 7. 200 plants/m2; GS00 10kgN/ha + GS31 150 kgN/ha 12.15 5.51 1.647 61.96 29.15
4 Kellalac 6. 100 plants/m2; GS00 10 kgN/ha + GS31 112.5 kgN/ha + GS39 112.5 kgN/ha 12.67 6.13 1.603 158.85 29.8
5 Kellalac 5. 100 plants/m2; GS00 10 kgN/ha + GS31 75 kgN/ha + GS39 75 kgN/ha 12.82 6.12 1.463 158.53 29.24
6 Kellalac 4. 100 plants/m2; GS00 10 kgN/ha + GS31 75 kgN/ha + GS39 75 kgN/ha 12.35 5.17 1.425 62.21 29.77
7 Kellalac 3. 100 plants/m2; GS00 10 kgN/ha + GS39 150 kgN/ha 13.05 5.77 1.166 159.98 28.41
8 Kellalac 2. 100 plants/m2; GS00 10kgN/ha + GS31 150 kgN/ha 12.72 6.12 1.158 156.92 29.05
9 Kellalac 1. 100 plants/m2; GS00 10 kgN/ha 10.58 5.38 1.298 62.23 29.94

Grain yield t/ha


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1000 grain weight g


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Protein %


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Screenings %


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Test weight kg/hL


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Trial results Lake Bolac results

# Variety
Protein (%) Screenings (%) Grain yield (t/ha) Test weight (kg/hL) 1000 grain weight (g)
1 Kellalac 9. 200 plants/m2; GS00 10 kgN/ha + GS31 75 kgN/ha + GS39 75 kgN/ha 14.92 2.8 2.468 67.65 28.2
2 Kellalac 8. 200 plants/m2; GS00 10 kgN/ha + GS39 150 kgN/ha 14.12 2.375 2.817 68.55 29.13
3 Kellalac 7. 200 plants/m2; GS00 10kgN/ha + GS31 150 kgN/ha 14.85 2.875 2.392 66.95 27.88
4 Kellalac 6. 100 plants/m2; GS00 10 kgN/ha + GS31 113 kgN/ha + GS39 113 kgN/ha 15.22 3.3 2.41 65.63 27.57
5 Kellalac 5. 100 plants/m2; GS00 10 kgN/ha + GS31 75 kgN/ha + GS39 75 kgN/ha 15.22 2.775 2.575 65.92 27.85
6 Kellalac 4. 100 plants/m2; GS00 10 kgN/ha + GS31 75 kgN/ha + GS39 75 kgN/ha 15.13 2.925 2.354 65.05 28.07
7 Kellalac 3. 100 plants/m2; GS00 10 kgN/ha + GS39 150 kgN/ha 14.45 2.875 2.543 66.95 28.7
8 Kellalac 2. 100 plants/m2; GS00 10kgN/ha + GS31 150 kgN/ha 15.55 3.225 2.277 65.28 27.4
9 Kellalac 1. 100 plants/m2; GS00 10 kgN/ha 13.48 2.875 2.789 67.1 28.92

Grain yield t/ha


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1000 grain weight g


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Protein %


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Screenings %


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Test weight kg/hL


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Observed trial site soil information
Trial site soil testing
Not specified
Soil conditions
Trial site Soil texture
Hamilton, VIC Not specified
Lake Bolac, VIC Not specified
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Hamilton, VIC Kurosol
Lake Bolac, 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 Hamilton VIC Lake Bolac VIC
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.

Hamilton VIC

Lake Bolac VIC

Hamilton VIC

NOTE: Exact trial site locality unknown - Climate data may not be accurate
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Lake Bolac 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

2004 trial report

2004 trial report



Trial last modified: 14-11-2019 16:34pm AEST