Assessing the impact of nitrogen timing on canopy development in wheat

2005
CC BY 4.0

Research organisaton

Trial details

Researcher(s) Colin Hacking (SFS)
Gary Sheppard (SFS)
Rohan Wardle (SFS)
Year(s) 2005
Contributor Southern Farming Systems
Trial location(s) Yalla-Y-Poora, VIC
Assessing the impact of nitrogen timing on canopy development in wheat locations
Aims

To assess the impact of nitrogen timing on canopy development and resultant grain yield and quality, where starting soil nitrogen levels are high.

Key messages

Delaying nitrogen application increased grain protein as would be expected. Treatment 5 which had 75 kg/ha nitrogen applied at GS39 (flag) had 2.19% more protein than the control and was higher than the other earlier applied nitrogen treatments, although not significantly higher. The cost involved in chasing this higher grain protein could not be justified

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

Thanks must go to all members and sponsors for their support of this trial.


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

Method

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

Yalla-Y-Poora 2005

Sow date 1 June 2005
Harvest date 29 December 2005
Plot size 2m x 7.5m
Plot replication Not specified
Download the trial report to view additional method/treatment information

Download results

Trial results Table 1

# Variety
Treatment 1
Protein (%) Grain yield (t/ha) Retention (%) 1000 grain weight (g) Screenings (%) Test weight (kg/hL)
1 Kellalac 30 kg N/ha pre-sowing + 10 kg N/ha at sowing + 45 kg N/ha at GS31 13.8 6.095 96.13 29.8 3.845 75.3
2 Kellalac 10 kg N/ha at sowing + 75 kg N/ha at GS31 13.78 6.065 95.74 31.2 4.26 75.72
3 Kellalac 10 kg N/ha at sowing + 45 kg N/ha at GS31 + 30 kg N/ha at GS39 14.07 6.037 96.3 30 3.682 74.63
4 Kellalac 10 kg N/ha at sowing 12.03 6.428 95.27 32.2 4.043 75.24
5 Kellalac 10 kg N at sowing + 75 kg N/ha at GS39 14.22 5.857 96.48 31.6 3.51 75

Grain yield t/ha


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1000 grain weight g


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Protein %


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Retention %


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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
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
2005 295.3mm
2004 338.4mm
2003 357.7mm
2002 357.1mm
2001 415.8mm
2000 448.7mm
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.

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

2005 trial report



Trial last modified: 23-10-2019 11:18am AEST