Phosphorus rate trial and alternative fertilisers


Research organisaton

Trial details

Researcher(s) N/A
Year(s) 2012
Contributor Hart Field Site Group
Trial location(s) Site 5, Hart, SA
Phosphorus rate trial and alternative fertilisers locations

To investigate the impact of conventional phosphorus fertilisers and alternative sources of phosphorus on the grain yield and quality of wheat.

Key messages
  • A response to fertiliser after 5 years of no phosphorus applications.
  • Alternative phosphorus sources such as biosolids, chicken litter or biochar, produced significantly lower yields compared to phosphorus fertiliser.
  • Biosolids and chicken litter significantly increased leaf and grain zinc concentrations.
Lead research organisation Hart Field Site Group
Host research organisation Hart Field Site Group
Related program N/A
Acknowledgments N/A
Other trial partners Not specified
Download the trial report to view additional trial information


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

Hart 2012

Sow rate or Target density Hindmarsh barley @ 80kg/ha
Sow date 12 June 2012
Harvest date Not specified
Plot size 1.4m x 10m
Plot replication 3

Urea @ 50kg/ha at sowing
Phosphorus applied as per treatment

Download the trial report to view additional method/treatment information

Download results

Trial results Table 1

# Treatment 1
Test weight (kg/hL) Protein (%) Grain yield (t/ha) Screenings (<2.2mm sieve) (%)
1 Nil 69.9 12.7 2.3 4.9
2 5 kg P/ha 70 12.6 2.6 5
3 10 kg P/ha 70.4 12.6 3 4.5
4 15 kg P/ha 69.9 12.3 3 6.2

Grain yield t/ha


Protein %


Screenings (<2.2mm sieve) %


Test weight kg/hL

Observed trial site soil information
Trial site soil testing
Not specified
Soil conditions
Trial site Soil texture
Site 5, Hart, SA Calcarosol
Derived trial site soil information
Australian Soil Classification Source
Trial site Soil order
Site 5, Hart, SA Chromosol
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



Site 5, Hart SA 2012

Observed climate information

Rainfall trial gsr (mm) 168mm

Derived climate information

Site 5, Hart SA


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: 06-06-2019 14:12pm AEST