Different sowing and topdressing nitrogen options in wheat

2010
CC BY 4.0

Research organisation
Funding source

Trial details

Researcher(s) Rohan Davies (UoM)
Peter Howie (UoM)
Charlie Walker (Incitec Pivot)
Year(s) 2010
Contributor Southern Farming Systems
Trial location(s) Lake Bolac, VIC
Different sowing and topdressing nitrogen options in wheat locations
Aims

To evaluate nitrogen efficiencies of various nitrogenous fertilisers on wheat.

Key messages
  • Despite apparently adequate levels of nitrogen in the soil profile, a significant yield response was still recorded where sulphur was supplied along with nitrogen protected by a nitrification inhibitor - Entec Granam.
  • Marginal S levels may have become deficient during the course of the trial due to leaching of sulfur.
Lead research organisation N/A
Host research organisation Southern Farming Systems
Trial funding source IPF
Related program N/A
Acknowledgments

Southern Farming Systems for the site selection and preparation.


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
  • Fertiliser : Type
Trial type Experimental
Trial design Replicated

Lake Bolac 2010

Sow date Not specified
Harvest date Not specified
Plot size Not specified
Plot replication Not specified
Download the trial report to view additional method/treatment information

Download results

Trial results Table 1

# Variety
Treatment 1
Protein (%) Screenings (%) Grain yield (t/ha) Test weight (kg/hL)
1 █ Beaufort █ Urea40kg N/ha @ DC15 10 2.48 3.96 62.5
2 █ Beaufort █ Urea+solvent40kg N/ha @ DC31-33 10.07 2.57 3.7 60.8
3 █ Beaufort █ Urea 40kg N/ha @ sowing 10.07 2.77 3.67 61.4
4 █ Beaufort █ Urea 40kg N/ha @ DC15 10.03 2.79 3.94 61.6
5 █ Beaufort █ Urea 20kg N/ha @ sowing 10.13 2.9 3.85 61.5
6 █ Beaufort █ Urea + solvent 40 kg N/ha @ DC15 9.97 3.1 3.73 62.4
7 █ Beaufort █ Urea + organic amendment 40 kg N/ha @ sowing 10 2.41 4.05 60.97
8 █ Beaufort █ Urea + organic amendment 20 kg N/ha @ sowing 10.17 2.58 3.66 61.9
9 █ Beaufort █ Urea + evaluation inhibitor 40kg N/ha @ DC31-33 9.83 2.59 3.88 62.6
10 █ Beaufort █ Urea + evaluation inhibitor 40kg N/ha @ DC15 10.07 2.58 3.82 58.98
11 █ Beaufort █ Urea + evaluation inhibitor 40 kg N/ha @ sowing 10.07 2.44 3.97 61.9
12 █ Beaufort █ Urea + evaluation inhibitor 20 kg N/ha @ sowing 10.1 2.42 3.95 62.9
13 █ Beaufort █ Green Urea 7 40kg N/ha @ DC31-33 10.27 2.45 3.78 61.1
14 █ Beaufort █ Green Urea 7 40kg N/ha @ DC15 9.9 2.7 3.5 60.2
15 █ Beaufort █ Green Urea 14 40kg N/ha @ DC31-33 10.1 2.64 3.58 61.5
16 █ Beaufort █ Green Urea 14 40kg N/ha @ DC15 9.9 2.83 3.86 61.96
17 █ Beaufort █ Gran am 40 kg N/ha @ sowing 9.87 2.73 3.77 63.4
18 █ Beaufort █ Gran am 20 kg N/ha @ sowing 10.17 2.2 3.76 62.5
19 █ Beaufort █ Entec urea 40kg N/ha @ sowing 10.13 2.95 4.04 62.35
20 █ Beaufort █ Entec urea 20kg N/ha @ sowing 9.97 2.38 3.51 64.7
21 █ Beaufort █ Entec Gran am 40 kg N/ha @ sowing 10.13 2.88 4.16 62
22 █ Beaufort █ Entec Gran am 20 kg N/ha @ sowing 10.43 2.77 3.74 62.4
23 █ Beaufort █ Easy N 40kg N/ha @ sowing 10.47 2.66 3.67 63.5
24 █ Beaufort █ Easy N 40kg N/ha @ DC31-33 9.97 3 3.31 62.5
25 █ Beaufort █ Easy N 40 kg N/ha @ DC15 10.07 2.27 3.52 62.3
26 █ Beaufort █ Easy N 20kg N/ha @ sowing 10.53 2.28 3.75 63.5
27 █ Beaufort █ Easy N + Agrotain 40kg N/ha @ DC31-33 10.23 2.16 3.48 64.2
28 █ Beaufort █ Easy N + Agrotain 40 kg N/ha @ DC15 10.07 2.67 3.52 63.4
29 █ Beaufort █ Control 10.3 2.27 3.54 62.7
30 █ Beaufort █ Control 10.27 2.8 3.45 62.8

Grain yield t/ha


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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
Lake Bolac, VIC Not specified
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
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 Lake Bolac VIC
2010
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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.

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

2010 trial report



Trial last modified: 31-10-2019 16:31pm AEST