Nitrogen application and NDVI

CC BY 4.0

Research organisaton
Funding source

Trial details

Researcher(s) Robert Pocock (Growers)
Richard Saunders (Rural Solutions SA)
Peter Treloar (Growers)
Grant Yates (Southern Precision-sprayers )
Year(s) 2010
Contributor Society of Precision Agriculture Australia
Trial location(s) Lameroo, SA
Nitrogen application and NDVI locations
  • To encourage Bruce and Robert Pocock, to test a the applicability for NDVI mapping for making nitrogen application decisions on their paddock, and to use precision yield mapping to provide an accurate analysis of the trial. 
  • To demonstrate NDVI technologies to demonstrate reduced risk and maximised return for Nitrogen application in the Mallee.Show the benefits of using EM38 and 'Your Soils Potential' soil testing service to map subsoil constraints.
  • To demonstrate and extend the benefits of precision agriculture technology to SA Mallee growers.
Key messages

The objective of this GRDC / SPAA funded project is to increase the level of adoption of PA 'beyond guidance' by broadacre farmers. The project specifically aims to increase the level of adoption of variable rate (VR) by growers in the project to 30% by 2013.This goal will be achieved by demonstrating how to use PA tools to growers at a regional level and by increasing the skills of growers and industry in PA to a level where they can then use PA tools in their farming systems to achieve economic, environmental and social benefits.

Lead research organisation Society of Precision Agriculture Australia
Host research organisation N/A
Trial funding source GRDC SPA000010
Related program N/A

This project was funded by the Grains Research and Development Corporation (GRDC) and run in conjuncion with Caring for our Country and Dept. Environment and Natural Resources

Other trial partners Topcon, Caring for our Country and Dept. Environment and Natural Resources.
Download the trial report to view additional trial information


Crop type Wheat
Treatment type(s)
  • Fertiliser: Rate
Trial type Precision agriculture
Trial design Not applicable

Lameroo 2010

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

Download results

Trial results Table 1

# Treatment 1
Grain yield (t/ha)
1 Zone 1 0kg/ha UAN 2.97
2 Zone 2 0kg/ha UAN 3.27
3 Zone 3 0kg/ha UAN 3.93
4 Zone 4 0kg/ha UAN 4.12
5 Zone 5 0kg/ha UAN 4.43
6 Zone 1 Post variabel rate UAN 2.92
7 Zone 2 Post variable rate UAN 2.92
8 Zone 3 Post variable rate UAN 3.27
9 Zone 4 Post variable rate UAN 3.88
10 Zone 5 Post variable rate UAN 4.55

Grain yield t/ha

Observed trial site soil information
Trial site soil testing
Not specified
Soil conditions
Trial site Soil texture
Lameroo, SA Not specified
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Lameroo, SA 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 Lameroo SA
2010 510.4mm
2009 442.5mm
2008 432.5mm
2007 467.3mm
2006 469.9mm
2005 482.1mm
2004 464.1mm
2003 474.7mm
2002 405.0mm
2001 435.1mm
2000 425.9mm
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.

Lameroo SA


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: 23-09-2019 17:24pm AEST