Phosphorus and potassium rates and strategies


Research organisatons

Trial details

Researcher(s) N/A
Year(s) 2014
Contributor Northern Agri Group
Trial location(s) Site 8, Binnu, WA
Phosphorus and potassium rates and strategies locations

To compare the most profitiable phosphrous (P) fertlisier rate and to compare the effectivness of banded potassuim (K) to topdressed (K)

Key messages

Low rainfall limited yield and subsoil compation was identified as a major constraint at this site.

Lead research organisation CSBP
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: Type
Trial type Experimental
Trial design Replicated

Binnu 2014

Sow rate or Target density 65KG/ha
Sow date 6 May 2014
Harvest date 10 November 2014
Plot size Not specified
Plot replication Not specified

All treatments execpt Untreated were topped up with 50l/ha of Flexi N

Download the trial report to view additional method/treatment information

Download results

Trial results Table 1

# Variety
Treatment 1
Treatment 2
Treatment 3
Hectolitre weight (kg/hL) Grain yield (t/ha) Protein (%)
1 Mace UTC UTC UTC 69 1.09 11.2
2 Mace 80KG/ha of MoP 78L/HA of Flexi N (Banded at Seeding) 70 1 11.6
3 Mace 80KG/ha of MoP 69L/ha of Flexi N Banded at seeding 28kg/ha Agstar Extra (at seeding) 68 1.11 12.012.5
4 Mace 80KG/ha of Mop 59L/ha of Flexi N Banded at seeding 56kg/ha Agstar Extra (at seeding) 67 1.22 12.2
5 Mace 80KG/ha of MoP 50l/ha of Flexi N Banded at seeding 85kg/ha Agstar Extra (at seeding) 67 1.33 11.8
6 Mace 80KG/ha of MoP 41L/ha of Flexi N Banded at seeding 112/ha Agstar Extra (at seeding) 69 1.43 11.8
7 Mace 50L/ha of Flexi N Banded at seeding 85kg/ha Agstar extra (at seeding) 68 1.27 11.8
8 Mace 54L/ha of Flexi N Banded at seeding 100kg/ha K-Till Extra (at seeding) 68 1.44 11.4
9 Mace 54L/ha of Flexi N Banded at seeding 100kg/ha K-till Extra & 18kg/ha Mop (at seeding) 70 1.35 12
10 Mace 40KG/HA of Mop 50L/ha of Flexi N Banded at seeding 85kg/ha Agstar Extra (at seeding) 71 1.31 12

Grain yield t/ha


Hectolitre weight kg/hL


Protein %

Observed trial site soil information
Trial site soil testing
Not specified
Soil conditions
Trial site Soil texture
Site 8, Binnu, WA Yellow sandplain
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Site 8, 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 8, 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



Derived climate information

No observed climate data available for this trial.
Derived climate data is determined from trial site location and national weather sources.

Site 8, 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.

Event Date Type Effect
Low rainfall
Growing season Low rainfall N/A

Trial last modified: 25-06-2019 13:37pm AEST