Riverine Plains 2010 crop reflectance and nitogen requirement trials

2010
CC BY 4.0

Research organisaton
Funding source

Trial details

Researcher(s) Nicole Dimos (SPAA)
Year(s) 2010
Contributor Society of Precision Agriculture Australia
Trial location(s) Dookie, VIC
Riverine Plains 2010 crop reflectance and nitogen requirement trials locations
Aims
  • To demonstrate the use of crop sensors.
  • To explore the relationship between in-season crop reflectance, crop biomass andcrop nitrogen content.
  • To assess the suitability of the data to assist in making decisions on crop nitrogen requirements.
Key messages

During 2010, trials were carried out on a number of paddocks near Dookie, Vic and Yarrawonga, VIC to explore the relationship between in-season crop reflectance, crop biomass and crop nitorgen content. In-season crop reflectance was measured using CropCircle snesors, which use NDVI (Normalised Difference Vegetation Index). The ultimate goal is to assess the suitability of the data to assist in making decisions on crop nitrogen requirements as the season unfolds. In this reprt one of the paddocks at Dookie is used as an example.

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

Thanks to Farmer Co-operators Mark Harmer and Adam Inchbold.

Crop sensing hardware was donated by gps-Ag.


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

Method

Crop type Cereal (Grain): Wheat
Treatment type(s)
  • Fertiliser: Rate
  • Soil Properties: Type
Trial type Precision agriculture
Trial design Not applicable

Dookie 2010

Sow date Not specified
Harvest date Not specified
Plot size Not specified
Plot replication Not specified
Fertiliser

Urea

Other trial notes

The relative amounts of nitrogen in the crop, predicted by the sensors, follows the pattern expected from the different amounts of soil nitrogen before fertiliser application. This certainly lends itself to directing variable rate fertiliser applications where in-season differences are detected. In non-water-limited seasons it appears the prediction of later season nitrogen uptake patterns from surveys performed earlier during the season is robust, which has encouraging implications for successful in-season nitrogen management.

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
Dookie, VIC Not specified
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Dookie, 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 Dookie VIC
2010 533.2mm
2009 461.4mm
2008 521.1mm
2007 508.3mm
2006 531.5mm
2005 511.6mm
2004 454.8mm
2003 466.5mm
2002 417.2mm
2001 472.5mm
2000 467.0mm
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

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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.

Dookie VIC

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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

2010 trial report



Trial last modified: 30-09-2019 15:16pm AEST