Management of soilborne Rhizoctonia disease risk in cropping systems

2014

Research organisatons
Funding sources

Trial details

Researcher(s) VVSR Gupta, John Kirkegaard (CSIRO), Alan McKay, Kathy Ophel-Keller, Nigel Wilhelm (SARDI), Daniel Huberli, Bill McLeod (DAFWA), David Roget (CSIRO, deceased December 2013)
Year(s) 2014
Contributor Mallee Sustainable Farming Inc.
Trial location(s) Site 4, Karoonda, SA
Management of soilborne Rhizoctonia disease risk in cropping systems locations
Aims

To improve our understanding of the interactions between pathogen inoculum levels and natural soil biological activity for long term control of Rhizoctonia and to improve the prediction and management of the disease. A series of multi-year field trials were conducted at sites in SA, Victoria and NSW to determine key soil, environment and management factors influencing the pathogen dynamics and disease impact in cereal crops.

Key messages

The key to long term Rhizoctonia disease control is to keep inoculum in the soil low in the crop and pasture phases and increase the ability of crops to tolerate the infection (create environments where plant infection is reduced and plant tolerance to infection improved). The success of available disease control strategies, e.g. soil disturbance, fertilizer addition or fungicides is greatest at low to medium inoculum levels and their effectiveness declines as inoculum levels increase or where disease suppressive activity is low. Overall, effective control of rhizoctonia disease in cereal crops requires both the reduction of the pathogen inoculum in the soil prior to seeding and control of the infection process in the crop itself. This has to be achieved through management practices spread over more than one cropping season and through an integrated management strategy.

Lead research organisation Commonwealth Scientific and Industrial Research Organisation
Host research organisation N/A
Trial funding source GRDC CSA00025, CSP00150,CSE00048
Trial funding source SAGIT
Related program N/A
Acknowledgments

GRDC and SAGIT for funding. All the growers (Glen Schmidt, Waikerie; Williams and Goosay families, Streaky Bay; Loller family, Karoonda; Simon Murphy, Galong; Troy Phillips, Wynarka) that kindly allowed CSIRO to conduct the trials on their farm during 2008 to 2014.


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

Method

Crop type
Trial type Experimental
Trial design Unknown

Karoonda 2014

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 4, Karoonda, SA Not specified
Derived trial site soil information
Australian Soil Classification Source
Trial site Soil order
Site 4, Karoonda, SA Calcarosol
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 4, Karoonda 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

2014 trial report