Understanding maps

CC BY 4.0

Research organisaton
Funding sources

Trial details

Researcher(s) N/A
Year(s) 2016
Contributor Central West Farming Systems
Trial location(s) Loxton, SA
Understanding maps locations

To provide information about understanding maps.

Key messages

Problems potentially identified by maps include:

  • nutrient deficiencies,
  • in crop weeds, and 
  • root disease.

At a basic level, simply overlaying in season aerial photography with yield data can provide some insight into
potential problems:

  • If yield deficiencies correlate with high growth areas, then weeds could be the issue.
  • Root diseases can show patterns of growth that are particular to that problem.
  • With aerial photography or  a NDVI, it may be possible to see colour differences that may indicate areas of nutrient deficiency and ground truth work is crucial to confirm suspicions.
Lead research organisation Central West Farming Systems
Host research organisation N/A
Trial funding source SAGIT SPAA115
Trial funding source NLP
Related program N/A
  • This factsheet was supported by SPAA Society of Precision Agriculture Australia Inc through funding from the South Australian Grain Industry Trust Fund as part of project SPAA115 – Communicating Innovations in Precision Agriculture: Factsheet series.
  • The case study was funded jointly by Natural Resources South Australian Murray- Darling Basin and the Australian Government’s National Landcare Programme.
  • All images supplied by Wisdom Data and Mapping.

Other trial partners SARDI
Download the trial report to view additional trial information


Crop type No crop specified
Treatment type(s)
  • Crop
Trial type Article/commentary
Trial design Not applicable

Loxton 2016

Sow rate or Target density two seeding rates (60 and 120 kg/ha)
Sow date 12 May 2016
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
Loxton, SA Not specified
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Loxton, SA Calcarosol
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 Loxton SA
2016 159.5mm
2015 140.2mm
2014 179.2mm
2013 155.2mm
2012 197.1mm
2011 246.3mm
2010 207.4mm
2009 144.7mm
2008 145.0mm
2007 142.3mm
2006 153.6mm
2005 181.7mm
2004 139.8mm
2003 123.5mm
2002 124.0mm
2001 169.9mm
2000 175.5mm
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.

Loxton 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 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

2016 trial report

Trial last modified: 07-05-2019 15:47pm AEST