When and how to use nitrogen fertiliser

1999

Research organisaton

Trial details

Researcher(s) N/A
Year(s) 1999
Contributor Birchip Cropping Group
Trial location(s) Site 3, Birchip, VIC
Charlton, VIC
Sea Lake, VIC
When and how to use nitrogen fertiliser locations
Aims

To investigate the response to nitrogen fertiliser on wheat.

Key messages

Nitrogen use has resulted in great improvements in crop yield in favourable seasons.
In dry seasons too much applied nitrogen can result in haying-off and lower yields.
Good guidelines are now available for nitrogen use to reduce the risk of crop failure resulting from applying too much fertiliser nitrogen.
The critical factors are:
• Stored soil water (control summer weeds)
• Measure how much nitrogen is in the soil prior to sowing
• Calculate nitrogen requirement from the target yield
• Do not pre-drill more than 60 kg/ha of urea in the 350mm rainfall zone (100kg/ha in the 450mm zone)
• Split applications are safer
• Topdress with urea if the soil test indicates a need, the crop is healthy, and the outlook is for an average to wet season

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 Wheat
Treatment type(s)
  • Fertiliser: Form
  • Fertiliser: Application
Trial type
Trial design

Birchip 1999

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

Charlton 1999

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

Sea Lake 1999

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
Site 3, Birchip, VIC Not specified
Charlton, VIC Not specified
Sea Lake, VIC Not specified
Derived trial site soil information
Australian Soil Classification Source
Trial site Soil order
Site 3, Birchip, VIC Vertosol
Charlton, VIC Sodosol
Sea Lake, VIC Lake
National soil grid Source
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.

Site 3, Birchip VIC

Charlton VIC

Sea Lake VIC

Site 3, Birchip VIC

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

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Sea Lake VIC

NOTE: Exact trial site locality unknown - Climate data may not be accurate
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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.




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Trial last modified: 05-12-2019 12:16pm AEST