Nitrogen source and placement

2005

Research organisatons

Trial details

Researcher(s) Erin Cahill (CSBP)
Year(s) 2005
Contributor Liebe Group
Trial location(s) Site 9, Dalwallinu, WA
Nitrogen source and placement locations
Aims

To investigate the effects of nitrogen placement and timing in wheat.

Key messages
  • Technical difficulties limited the value of data collected from this trial.
  • There was no yield response to nitrogen rate, source or placement but protein increased with N rate.
  • Nitrogen-use efficiency was in general poor across all treatments although banded treatments were slightly better than broadcase applications.
Lead research organisation CSBP
Host research organisation N/A
Related program N/A
Acknowledgments
  • Paper reviewed by Stephen Loss.

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

Method

Crop type Wheat
Treatment type(s)
  • Fertiliser: Type
  • Fertiliser: Rate
  • Fertiliser: Timing
Trial type Experimental
Trial design Replicated

Dalwallinu 2005

Sow date 13 May 2005
Harvest date Not specified
Plot size 20m x 2m
Plot replication 3
Fertiliser

120 kg/ha Agstar Zn

Herbicide

13th May 2005: 0.8 L/ha Sprayseed & 1.5 L/ha Trifluralin. 15th June 2005: 250 g/ha Achieve + 1% Supercharge + 700 mL/ha Hoegrass + 70mL Dimethoate 21st June 2005: 7 g/ha Eclipse + oil, 200 mL/ha Sonic, 400 mL/ha Zinctrac

Download the trial report to view additional method/treatment information

Download results

Trial results Table 1

# Treatment 1
Grain yield (t/ha) Protein (%) Screenings (%) Nitrogen use efficiency (%)
1 110 Urea Banded 1.48 12.3 3.31 16.22
2 110 Urea Top Dressed IBS 1.54 10.6 2.54 8.88
3 120 Flexi N Top Dressed IBS 1.56 11.1 3.07 12.51
4 120 Flexi-N Banded 1.57 12 2.43 12.29
5 120 Flexi-N Banded 1.54 12.3 4.42 9.77
6 55 Urea Banded 1.57 10.4 2.97 17.7
7 55 Urea Top Dressed IBS 1.55 10.3 2.34 14.81
8 60 Flexi N Top Dressed IBS 1.59 9.7 2.7 11.2
9 60 Flexi-N Banded 1.57 10.3 3.33 16.39
10 60 Flexi-N Banded 1.64 11.9 3.04 21.36
11 Basal Only 1.55 9.1 2.19

Grain yield t/ha


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Nitrogen use efficiency %


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Protein %


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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
Site 9, Dalwallinu, WA 0 - 10cm Loamy Clay
Site 9, Dalwallinu, WA 10 - 30cm Loamy Clay
Soil conditions
Trial site Soil texture
Site 9, Dalwallinu, WA Loamy clay
Derived trial site soil information
Australian Soil Classification Source
Trial site Soil order
Site 9, Dalwallinu, WA Kandosol
National soil grid Source
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

Site 9, Dalwallinu WA 2005


Observed climate information

Rainfall trial gsr (mm) 258.5mm

Derived climate information

Site 9, Dalwallinu WA

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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.




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