Response of mace wheat to potassium and nitrogen - Binnu


Research organisaton

Trial details

Researcher(s) N/A
Year(s) 2014
Contributor Northern Agri Group
Trial location(s) Site 15, Binnu, WA
Response of mace wheat to potassium and nitrogen - Binnu locations

To investigate responses to potassium and nitrogen in wheat. Wheat yeild and grain quality can be limited if either of these macro nutrients is in short supply.

Key messages

Potassium levels are low in this soil and this site should have been responsive to applied potassium, however due to seasonal and soil conditions there where no differences between treatments in this trial. The very dry June-August had a marked impact on crop growth, particularly tillering. This can be seen by the lack of differences in the head counts taken in September. Very hot conditions in early August also affected flowering in wheat and limited any response in grain yeild with later rains. Soil penetrometer readings in the paddock near the trial site showed hard pan and this in conjunction with the pH and Aluminium levels below 10cm would have restricted root growth and limited the wheat plants ability to access soil miosture at depth during the dry winter period. Without yield responses to applied treatments, crop return decreased as fertiliser rates increased.

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


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

Binnu 2014

Sow rate or Target density 75kg/ha
Sow date 8 May 2014
Harvest date Not specified
Plot size 20m x 2.05m
Plot replication 3

At seeding 75kg/ha mapszc banded


8th May 2L/ha Triflurin 26th May 800ml/ha Velocity and Hasten @ 1%vv


200ml.ha dominex & 200ml/ha Lorsban

Download the trial report to view additional method/treatment information

Download results

Trial results Table 1

# Variety
Treatment 1
Treatment 2
Grain yield (t/ha) Return on investment ($/ha) Head abundance (heads/m2) Fertiliser cost ($/ha)
1 Mace 0N 0K 1.48 408.41 119 66.68
2 Mace 0N 10K 1.57 424.54 115 79.44
3 Mace 0N 20K 1.62 427.83 117 92.2
4 Mace 0N 40K 1.6 395.89 113 117.72
5 Mace 30N 0K 1.69 440.34 110 102.15
6 Mace 30N 10K 1.65 414.74 122 114.91
7 Mace 30N 20K 1.49 350.62 119 127.67
8 Mace 30N 40K 1.51 331.52 114 153.19
9 Mace 60N 0K 1.62 369.5 122 150.53
10 Mace 60N 10K 1.61 353.53 112 163.29
11 Mace 60N 20K 1.6 337.56 114 176.05
12 Mace 60N 40K 1.49 276.73 121 201.57
13 Mace 90N 0K 1.58 314.09 117 193.1
14 Mace 90N 10K 1.56 294.91 117 205.86
15 Mace 90N 20K 1.65 311.04 109 218.62
16 Mace 90N 40K 1.57 259.84 122 244.14

Grain yield t/ha


Fertiliser cost $/ha


Head abundance heads/m2


Return on investment $/ha

Observed trial site soil information
Trial site soil testing
Not specified
Soil conditions
Trial site Soil texture
Site 15, Binnu, WA Yellow deep sand
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Site 15, Binnu, WA Chromosol
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 Site 15, Binnu WA
2014 330.6mm
2013 333.3mm
2012 348.2mm
2011 400.9mm
2010 324.7mm
2009 358.5mm
2008 398.8mm
2007 280.7mm
2006 313.7mm
2005 342.3mm
2004 319.6mm
2003 338.0mm
2002 333.0mm
2001 338.8mm
2000 381.7mm
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



Site 15, Binnu WA 2014

Observed climate information

Rainfall trial gsr (mm) 262mm

Derived climate information

Site 15, Binnu WA

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

Some data on this site is sourced from the Bureau of Meteorology

SILO weather estimates sourced from
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 last modified: 25-06-2019 13:40pm AEST