Phosphorus response in field peas

CC BY 4.0

Research organisaton

Trial details

Researcher(s) Ken Motley (NSW Agriculture_)
Andrew Rice (CWFS)
Year(s) 2000
Contributor Central West Farming Systems
Trial location(s) Wirrinya, NSW
Phosphorus response in field peas locations

To measure responsiveness to starter nitrogen (N) and high sulphur (S) rates.

Key messages
  • Soil test results indicated that the P levels on the trial site were not particularly low.
  • Despite the dry conditions in September, grain yields ranged from 1.59 to 2.16 t/ha.
  • Results demonstrate that application of P up to 40 kg P/ha can increase field pea yields. To maximise grain yield, P rates above 40 kg/ha may be needed.
Lead research organisation Central West Farming Systems
Host research organisation N/A
Related program N/A

Cooperators: Kim and Wendy Muffett.
Technical assistance: Greg Gibson, Nicole Gammie and Tim McNee.
Comments on trial data: Eric Armstrong and David Flower.
Funded by Grain Growers Association and Hi-Fert Fertilisers.

Other trial partners Not specified
Download the trial report to view additional trial information


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

Wirrinya 2000

Sow date 9 June 2000
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

# Treatment 1
Grain yield (t/ha)
1 Nil 1.59
2 10 kg SSP/ha + 13 kg S/ha 1.85
3 15 kg SSP/TSP/ha + 13 kg S/ha 1.79
4 20 kg SSP/TSP/ha + 14 kg S/ha 1.87
5 20 kg SSP/ha + 26 kg S/ha 1.99
6 20 kg MAP/ha + 1 kg S/ha + 9 kg N/ha 1.97
7 20 kg MAP sulphur/ha + 13 kg S/ha + 9 kg N/ha 2.16
8 20 kg LegumixVN/ha + 13 kg S/ha 1.89
9 25 kg SSP/TSP/ha + 14 kg S/ha 2.03
10 30 kg SSP/TSP/ha + 14 kg S/ha 1.98
11 40 kg SSP/TSP/ha + 14 kg S/ha 2.16

Grain yield t/ha

Observed trial site soil information
Trial site soil testing
Not specified
Soil conditions
Trial site Soil texture
Wirrinya, NSW Not specified
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Wirrinya, NSW Vertosol
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.

Wirrinya NSW


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: 07-05-2018 12:04pm AEST