Soil testing - making the best use of technology


Research organisaton
Funding source

Trial details

Researcher(s) Lyn Dohle (PIRSA)
Year(s) 2018
Contributor Primary Industries and Regions SA
Trial location(s) Bolto, SA
Soil testing - making the best use of technology locations

To report on two demonstration sites to investigate the use of pH nutrient mapping (using PrecisionAg, in the top soil) with pasture growth monitoring (using Decipher) and sub soil contraint mapping (using the EM38).

Key messages
  • Precision mapping of soil provides a more accurte understanding of pH and nutrient status than traditional mapping.
  • Soils are highly variable, so even replicate samples of the same transect will vary and there is no 'perfect result' so just be aware of htis in the interpretation of the maps.
  • If your paddock varies in soil type ensure extra samples are analysed for PBI.
Lead research organisation N/A
Host research organisation N/A
Trial funding source NLP
Related program N/A


  • Agriculture Kangaroo Island through the National Landcare Program.
  • Rick and Anne Morris.
  • Bolto family.

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


Crop type No crop specified
Treatment type(s)
  • Fertiliser
Trial type Precision agriculture
Trial design Not applicable

Bolto 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
Bolto, SA Not specified
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Bolto, 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 Bolto SA
2018 484.5mm
2017 497.5mm
2016 502.2mm
2015 450.7mm
2014 509.8mm
2013 510.6mm
2012 500.6mm
2011 499.7mm
2010 503.4mm
2009 506.7mm
2008 494.0mm
2007 508.2mm
2006 522.6mm
2005 504.9mm
2004 505.6mm
2003 530.1mm
2002 503.0mm
2001 515.4mm
2000 531.0mm
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.

Bolto 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 report and links

2018 trial report

Trial last modified: 20-06-2019 15:09pm AEST