Improving phosphorous management on Upper EP using the DGT soil test

2009
CC BY 4.0

Research organisation
Funding source

Trial details

Researcher(s) A Bates (Bates Agricultural Consulting)
Sean Mason (UoA)
Year(s) 2009
Contributor The University of Adelaide
Trial location(s) Buckleboo, SA
Calca, SA
Koongawa, SA
Koongawa, SA
Kopi, SA
Lock, SA
Mudamuckla, SA
Nundroo, SA
Piednippie, SA
Piednippie Tank, SA
Port Kenny, SA
Wirrulla, SA
Witera, SA
Improving phosphorous management on Upper EP using the DGT soil test locations
Aims

To present trial results from the Diffusive Gradients in Thin Film (DGT) soil test for phosphorous, which is showing great promise as a tool that is more accurate at predicting P response in wheat than other traditional soil tests, on a range of soil types.

Key messages
  • The DGT Soil test can be an accurate predictor of soil P levels in Upper EP soil types.
  • EP data supports the established DGT critical values for responses to applied P in wheat.
  • DGT soil P test will be a valuable tool for farmers on EP.
Lead research organisation The University of Adelaide
Host research organisation N/A
Trial funding source GRDC
Related program Eyre Peninsula Farming Systems
Acknowledgments

GRDC is acknowledged for its continued support of the DGT program, and for funding the program on EP in 2009. Thanks also to the famers on EP, including the MAC farm team, who have contributed time and resources, and to Dr Nigel Wilhelm for project support.


Other trial partners SARDI
Download the trial report to view additional trial information

Method

Crop types Cereal (Grain): Wheat Cereal (Grain): Barley
Treatment type(s)
  • Fertiliser : Type
  • Soil : Testing method
Trial type Experimental
Trial design Replicated

Buckleboo 2009 Wheat

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

Calca 2009 Barley

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

Koongawa 2009 Wheat

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

Kopi 2009 Wheat

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

Lock 2009 Wheat

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

Mudamuckla 2009 Wheat

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

Nundroo 2009 Wheat

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

Piednippie 2009 Wheat

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

Piednippie Tank 2009 Barley

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

Port Kenny 2009 Wheat

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

Wirrulla 2009 Wheat

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

Witera 2009 Wheat

Sow date Not applicable
Harvest date Not applicable
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
Buckleboo, SA Not specified
Calca, SA Not specified
Koongawa, SA Not specified
Koongawa, SA Not specified
Kopi, SA Not specified
Lock, SA Not specified
Mudamuckla, SA Not specified
Nundroo, SA Not specified
Piednippie, SA Not specified
Piednippie Tank, SA Not specified
Port Kenny, SA Not specified
Wirrulla, SA Not specified
Witera, SA Not specified
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Buckleboo, SA Tenosol
Calca, SA Tenosol
Koongawa, SA Tenosol
Koongawa, SA Tenosol
Kopi, SA Calcarosol
Lock, SA Calcarosol
Mudamuckla, SA Tenosol
Nundroo, SA Calcarosol
Piednippie, SA Calcarosol
Piednippie Tank, SA Calcarosol
Port Kenny, SA Tenosol
Wirrulla, SA Tenosol
Witera, SA Tenosol
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 Buckleboo SA Calca SA Koongawa SA Koongawa SA Kopi SA Lock SA Mudamuckla SA Nundroo SA Piednippie SA Piednippie Tank SA Port Kenny SA Wirrulla SA Witera SA
2009
2008
2007
2006
2005
2004
2003
2002
2001
2000

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.

Buckleboo SA

Calca SA

Koongawa SA

Koongawa SA

Kopi SA

Lock SA

Mudamuckla SA

Nundroo SA

Piednippie SA

Piednippie Tank SA

Port Kenny SA

Wirrulla SA

Witera SA

Buckleboo SA

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

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

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

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

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

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

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

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

NOTE: Exact trial site locality unknown - Climate data may not be accurate
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Piednippie Tank SA

NOTE: Exact trial site locality unknown - Climate data may not be accurate
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Port Kenny SA

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

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

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.



Trial last modified: 17-01-2026 00:56am AEST