Stubble nutrient loss from summer rainfall

2017

Research organisaton
Funding source

Trial details

Researcher(s) Genevieve Clarke (BCG)
Year(s) 2017
Contributor Birchip Cropping Group
Trial location(s) Birchip, VIC
Further information View external link
Stubble nutrient loss from summer rainfall locations
Aims

To determine the nutrient loss from stubbles of various crop types following summer rainfall.

Key messages
  • Rainfall over the summer fallow period will cause nutrient leaching from stubbles.
  • Stubble crop type determines initial value of stubble and what may be leached due to rainfall.
  • It is important to consider other loss pathways such as microbial breakdown and volatilisation as well as leaching when calculating stubble nutrient value following the summer fallow period.
Lead research organisation Birchip Cropping Group
Host research organisation N/A
Trial funding source GRDC BW000024
Related program Maintaining profitable farming systems with retained stubble
Acknowledgments

This research was funded by GRDC as part of the ‘Maintaining profitable farming systems in retained stubble’ project - component 1 (BW000024). Thanks to Therese McBeath and Vadakattu Gupta (CSIRO) for the provision of technical assistance.


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

Method

Crop types Cereal (Grain): Wheat Oilseed: Canola Grain Legume: Field peas
Treatment type(s)
  • Stubble: Type
Trial type Experimental
Trial design Randomised,Replicated,Blocked

Birchip 2017 Wheat

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

Birchip 2017 Canola

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

Birchip 2017 Field peas

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
Treatment 2
Sulphur (mg/L) Nitrogen (mg/L) Potassium (mg/L) Phosphorus (mg/L)
1 Wheat Decile 1 4.8 0.1 133.6 0.1
2 Wheat Decile 5 7.8 0.1 203.9 0.2
3 Wheat Decile 9 9.3 0.1 234.2 0.2
4 Pea Decile 1 8 8.2 318 3.4
5 Pea Decile 5 12.7 18.2 457.4 5.6
6 Pea Decile 9 14.5 19.1 499.1 5.9
7 Canola Decile 1 36.6 13.2 271.5 0.7
8 Canola Decile 5 57.4 9.3 451.5 1.2
9 Canola Decile 9 66.7 17.7 514.8 1.2
10 No Stubble Decile 1 1.2 0.1 2.8 0
11 No Stubble Decile 5 2.3 0.1 5.6 0
12 No Stubble Decile 9 3.1 0.1 7.8 0

Nitrogen mg/L


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Phosphorus mg/L


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Potassium mg/L


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Sulphur mg/L


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Observed trial site soil information
Trial site soil testing
Not specified
Soil conditions
Trial site Soil texture
Birchip, VIC Not specified
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Birchip, 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
2017 342.2mm
2016 308.5mm
2015 278.4mm
2014 305.5mm
2013 323.9mm
2012 365.4mm
2011 431.2mm
2010 344.5mm
2009 292.7mm
2008 275.5mm
2007 274.8mm
2006 283.6mm
2005 316.0mm
2004 281.0mm
2003 275.8mm
2002 240.1mm
2001 285.1mm
2000 290.6mm
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

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

2017 trial report



Trial last modified: 05-12-2019 11:20am AEST