Addressing soil acidity: subsurface soil amendments increasing pH and crop yield at Rutherglen

2017

Research organisation
Funding sources

Trial details

Researcher(s) Jason Condon
Guangdi Li
Sergio Moroni
Alek Zander
Year(s) 2017
Contributor Riverine Plains
Trial location(s) Rutherglen, VIC
Addressing soil acidity: subsurface soil amendments increasing pH and crop yield at Rutherglen locations
Aims
  • To quantify the yield limitation caused by subsoil acidity and evaluate innovative soil amendments that act to ameliorate subsurface acidity.
Key messages

Surface soil acidity (0–10cm) limited crop yield by about 8–12%.

Deep placement of reactive phosphate rock or organic matter (OM) achieved yield gains of up to 18% compared with surface-applied lime.

Deep placement of OM may induce manganese (Mn) toxicity.

The interaction between subsurface pH increase and nutrient release needs further investigation.

Lead research organisation N/A
Host research organisation N/A
Trial funding source GRDC DAN00206
Trial funding source DPI NSW
Related program N/A
Acknowledgments

This project is funded by NSW DPI with financial support from the GRDC through the Innovative approaches to managing subsoil acidity in the southern grain region (DAN00206) project. The project is supported by Riverine Plains Inc, Farmlink Research, Southern Farming Systems and the Holbrook Landcare Network. Thanks to farmer co-operator Stephen Chambers.
Technical staff: Richard Lowrie, Alek Zander, Adam Lowrie and Andrew Price.


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

Method

Crop type Oilseed: Canola
Treatment type(s)
  • Soil Improvement : Method
  • Soil Improvement : Rate
  • Soil Improvement : Type
Trial type Experimental
Trial design Randomised,Replicated,Blocked

Rutherglen 2017

Sow rate or Target density 3 kg/ha
Sowing machinery

Cone seeder on a 25cm row spacing.

Sow date 3 May 2017
Harvest date 22 November 2017
Trial design method RCBD Randomised Complete Block Design
Plot size 5m x 20m
Plot replication 3
Plot randomisation Y
Fertiliser

75kg MAP/ha at seeding

Other trial notes

This trial is a part of a 3 year project. Please refer to https://www.farmtrials.com.au/trial/40291 for 2018 trials and https://www.farmtrials.com.au/trial/40600 for 2019 trials

 

Download the trial report to view additional method/treatment information
Trial source data and summary not available
Check the trial report PDF for trial results.
Observed trial site soil information
Trial site soil testing
Not specified
Soil conditions
Trial site Soil texture
Rutherglen, VIC Not specified
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Rutherglen, 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 Rutherglen VIC
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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.

Rutherglen VIC

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

2017 trial report



Trial last modified: 23-10-2025 03:01am AEST