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Can delving control waterlogging impacts

2005

Research organisation
Funding source
Agriculture Kangaroo Island Incorporated
<abbr title='National Landcare Programme'>NLP</abbr>

Trial details

Researcher(s) Lyn Dohle (Rural Solutions SA)
Year(s) 2005
Contributor Agriculture Kangaroo Island Incorporated
Trial location(s) , SA
Can delving control waterlogging impacts locations
Aims

To investigate the potential of using a modified delving operation, which rips the clay and allows topsoil/gravel to fall back into the clay slot, to create a subsurface drainage line through the clay and reduce waterlogging.

Key messages
  • Timeliness of operations is essential. The paddock may need to be dry sown as once the soil wets up you may not get back on the site again.
  • Whilst the results from 2005 were very encouraging, for the technique to be cost effective the delved areas will need to produce increased yields for at least two years.
  • Care must also be taken with the run-off flows to ensure there are no negative off-site impacts.
Lead research organisation Agriculture Kangaroo Island Incorporated
Host research organisation N/A
Trial funding source NLP
Related program N/A
Acknowledgments

Many thanks to sponsors, the National Landcare Program, N & R Pontiflex and P & J Tonkin.
Other trial partners Rural Solutions SA
Download the trial report to view additional trial information

Method

Crop type Oilseed: Canola
Treatment type(s)
  • Soil Improvement
  • Soil Improvement : Application Method
Trial type Demonstration
Trial design Unreplicated

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
, SA Not specified
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
, SA Chromosol
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 SA
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.

SA

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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: 15-12-2021 11:01am AEST