Different sowing and topdressing nitrogen options in wheat

2011
CC BY 4.0

Research organisaton

Trial details

Researcher(s) Rohan Davies (UoM)
Peter Howie (UoM)
Charlie Walker (Incitec Pivot)
Year(s) 2011
Contributor Southern Farming Systems
Trial location(s) Inverleigh, VIC
Different sowing and topdressing nitrogen options in wheat locations
Aims

To assess the potential production benefits of various nhanced efficiency nitrogen fertilisers (EENFs) and liquid fertiliser strategies.

Key messages
  • The application of 40kg/ha at sowing resulted in significant yield responses from all products over the control where only starter fertiliser was applied.
  • Fertilisers banded at sowing generally resulted in higher yields and grain N recovery than top dress applications, while the inverse was true for grain protein levels.
  • Low grain protein levels (<10.5%) for all treatments and application timings generally indiates that yield was not optimised due to the limited nitrogen supply.
  • There were no significant responses found from the use of inhibitors in this trial.
Lead research organisation N/A
Host research organisation N/A
Related program N/A
Acknowledgments

This trial was funded by Incitec Pivot Fertilisers.
Southern Farming Systems for 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

Inverleigh 2011

Sow date 10 June 2011
Harvest date 15 November 2011
Plot size 17m x 1.74m
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) Screenings (%) Test weight (kg/hL)
1 Beaufort Urea 40 kg N/ha @ sowing 9 3.66 0.5 67.7
2 Beaufort Urea 40 kg N/ha @ DC31 9.9 3.09 0.7 68.1
3 Beaufort Urea 40 kg N/ha @ DC15 9.5 2.72 0.8 67.8
4 Beaufort Urea + organic amendment 40 kg N/ha @ sowing 9.1 3.23 0.4 69.6
5 Beaufort UI V2 evaluation inhibitor 40 kg N/ha @ DC31 10.2 3.23 0.6 65.3
6 Beaufort UI V2 evaluation inhibitor 40 kg N/ha @ DC15 9.4 3.33 0.8 65.9
7 Beaufort S coated Urea 40 kg N/ha @ sowing 9 3.3 0.4 69.2
8 Beaufort S Coated Urea 40 kg N/ha @ DC31 10 2.9 0.7 66.1
9 Beaufort S Coated Urea 40 kg N/ha @ DC15 9.5 2.13 1 65.3
10 Beaufort Green Urea 40 kg N/ha @ DC31 9.8 2.53 0.9 66.6
11 Beaufort Green Urea 40 kg N/ha @ DC15 9.3 2.36 1 65.8
12 Beaufort Gran am 40 kg N/ha @ sowing 9.3 3.94 0.4 67.8
13 Beaufort Gran AM 40 kg N/ha @ DC31 9.8 3.39 0.8 66.8
14 Beaufort Gran AM 40 kg N/ha @ DC15 9.4 3.3 0.8 66.6
15 Beaufort Entec Urea 40 kg N/ha @ sowing 9.3 3.2 0.6 69.1
16 Beaufort Entec Urea 40 kg N/ha @ DC31 9.6 2.76 0.7 67.7
17 Beaufort Entec Urea 40 kg N/ha @ DC15 9.7 3.04 0.8 68.1
18 Beaufort Entec GranAM; Urea 40 kg N/ha @ sowing 8.9 3.62 0.5 70.1
19 Beaufort Entec GranAM 40 kg N/ha @ DC15 9.5 3.01 0.7 67.9
20 Beaufort Entec Gran Am: Urea 40 kg N/ha @ DC31 10 3.1 0.9 65.9
21 Beaufort Entec Gran AM: Urea 40 kg N/ha @ DC15 8.7 2.96 0.7 69.9
22 Beaufort Entec Gran am 40 kg N/ha @ sowing 8.9 3.32 0.7 69.3
23 Beaufort Easy N 40 kg N/ha @ DC31 9.5 2.78 1 67.4
24 Beaufort Easy N 40 kg N/ha @ DC15 9.4 2.04 1.1 66.6
25 Beaufort Control 8.9 2.17 0.7 66.9
26 Beaufort CalGran 40 kg N/ha @ sowing 9.2 3.62 0.7 67.8
27 Beaufort CalGran 40 kg N/ha @ DC31 9.7 1.98 1.4 67.3
28 Beaufort CalGran 40 kg N/ha @ DC15 9.4 3.4 0.7 68.9

Grain yield t/ha


Loading

Protein %


Loading

Screenings %


Loading

Test weight kg/hL


Loading
Observed trial site soil information
Trial site soil testing
Not specified
Soil conditions
Trial site Soil texture
Inverleigh, VIC Not specified
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Inverleigh, 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 Inverleigh VIC
2011 580.5mm
2010 592.9mm
2009 508.8mm
2008 492.1mm
2007 455.4mm
2006 467.8mm
2005 491.2mm
2004 438.6mm
2003 416.4mm
2002 399.6mm
2001 472.4mm
2000 448.5mm
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

Loading

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.

Inverleigh VIC

Loading
Loading
Loading

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

2011 trial report



Trial last modified: 30-10-2019 13:29pm AEST