VVSR Gupta, John Kirkegaard (CSIRO), Alan McKay, Kathy Ophel-Keller, Nigel Wilhelm (SARDI), Daniel Huberli, Bill McLeod (DAFWA), David Roget (CSIRO, deceased December 2013)
|Contributor||Mallee Sustainable Farming Inc.|
Site 4, Karoonda, SA
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.
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 CSE00048, CSP00150, CSA00025|
|Trial funding source||SAGIT|
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|
|Crop type||Other: Multiple|
|Sow rate or Target density||Not specified|
|Sowing machinery||Not specified|
|Plot size||Not specified|
|Plot replication||Not specified|
|Plot blocking||Not specified|
|Plot randomisation||Not specified|
|Paddock history||Not specified|
|Soil amelioration||Not specified|
|Seed treatment||Not specified|
|Other trial notes||
Multi-year field experiments in SA were located at Waikerie, Karoonda and Streaky Bay; and in NSW in Galong and Condobolin
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.