UAN compatibility with herbicides and fungicides

2005

Research organisaton

Trial details

Researcher(s) N/A
Year(s) 2005
Contributor Birchip Cropping Group
Trial location(s) Birchip, VIC
Marnoo, VIC
UAN compatibility with herbicides and fungicides locations
Aims

To repeat trials from 2004 to confirm confidence in findings that UAN can be used as an in-crop fertiliser in Victoria.

Key messages

Best practice for using UAN at rates of up to 60L/ha when mixed with herbicides and fungicides:

  • if using herbicides or fungicides not in this trial then always to a 'jar' test first for determining the physical compatibility: if white clouds or clear divisions appear, then the two may not be compatible;
  • herbicides and fungicides mix better with UAN if mixed in water first;
  • do not spray at temperatures over 25degrees C especially after flag leaf emergence because you don't want to scorch the flag leaf (!)
  • do not spray when the Delta T is < 2, it appears that the leaf scorch is worst when humidity levels are high.
Lead research organisation N/A
Host research organisation N/A
Related program N/A
Acknowledgments N/A
Other trial partners Not specified
Download the trial report to view additional trial information

Method

Crop type Cereal (Grain): Wheat
Treatment type(s)
  • Fertiliser: Application Method
  • Fertiliser: Timing
  • Fungicide: Timing
  • Fungicide: Type
Trial type
Trial design

Birchip 2005

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

Marnoo 2005

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
Birchip, VIC Not specified
Marnoo, VIC Not specified
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Birchip, VIC Vertosol
Marnoo, VIC Vertosol
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 Birchip VIC Marnoo VIC
2005 316.0mm345.1mm
2004 281.0mm371.3mm
2003 275.8mm449.2mm
2002 240.1mm464.1mm
2001 285.1mm528.0mm
2000 290.6mm598.2mm
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.

Birchip VIC

Marnoo VIC

Birchip VIC

CAUTION: Trial site locality unknown; Climate data sourced from Birchip Cropping Group office location
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Marnoo 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

2005 trial report



Trial last modified: 05-12-2019 11:35am AEST