Soil pH micro-variation mapping


Research organisaton
Primary Industries and Regions SA

Trial details

Researcher(s) Lyn Dohle (PIRSA)
Year(s) 2018
Contributor Primary Industries and Regions SA
Trial location(s) Hundred of Seddon, SA
Soil pH micro-variation mapping locations

To answer the questions:

  • Are our soils acidifying at depth, and if so, will this impact on crop and pasture growth?
  • What happens when we just apply lime to the top soil?
  • Do we need to be re-thinking our liming program?
Key messages
  • Monitor pH to depth by using a shoven and cheap pH test kit.
  • Don't assume just because you once limed that the problem is solved - monitor, monitor, monitor.
  • Consider options to get lime to depth by increasing the rate and/or frequency of limin or using strategic tilage.
Lead research organisation N/A
Host research organisation N/A
Related program N/A
  • Funding/Sponsors:
  • DEW
  • Stanton family

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


Crop type Canola
Treatment type(s)
  • Soil
Trial type Experimental
Trial design Replicated

Hundred of Seddon 2018

Sow date Not specified
Harvest date Not specified
Plot size Not specified
Plot replication Not specified
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
Hundred of Seddon, SA Not specified
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Hundred of Seddon, SA Anthroposol
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 Hundred of Seddon SA
2018 408.6mm
2017 457.2mm
2016 452.7mm
2015 391.8mm
2014 456.1mm
2013 454.0mm
2012 441.4mm
2011 460.9mm
2010 441.3mm
2009 452.2mm
2008 433.1mm
2007 413.9mm
2006 459.2mm
2005 436.8mm
2004 451.7mm
2003 476.5mm
2002 444.1mm
2001 456.6mm
2000 460.6mm
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.

Hundred of Seddon SA

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: 20-06-2019 15:09pm AEST