Dryland Legume Pasture Systems: Medic nodulation and nitrogen fixation

2018 - 2019

Research organisations
Funding sources

Trial details

Researcher(s) Ross Ballard (SARDI)
Jeff Hill
David Peck
Ian Richter
Naomi Scholz
Fiona Tomney
Year(s) 2018 - 2019
Contributor SARDI Minnipa Agricultural Centre
Trial location(s) Minnipa Agricultural Centre, SA
Related trials
Dryland Legume Pasture Systems: Medic nodulation and nitrogen fixation locations
Aims

• To determine if inoculation can improve medic nodulation at Minnipa,
• To quantify the amount of N fixed by different legumes, and
• To assess impacts on the following wheat crop.

Key messages
  • The nodulation of strand medic was below potential, but was not increased by inoculation.
  • Trigonella formed more nodules than medic, but in the end PM-250 strand medic was more productive and fixed the most N.
  • Legume inoculation (2018) increased wheat grain protein (2019). The increase could not be attributed to any measure of legume performance.
Lead research organisation South Australian Research and Development Institute
Host research organisation SARDI Minnipa Agricultural Centre
Trial funding source GRDC RnD4Profit-16-03-010
Trial funding source AWI RnD4Profit-16-03-010
Trial funding source MLA RnD4Profit-16-03-010
Trial funding source AGRR&D RnD4Profit-16-03-010
Related program Dryland Legume Pasture Systems (Rural R&D for Profit)
Acknowledgments

The Dryland Legumes Pasture Systems project is supported by funding from the Australian Government Department of Agriculture as part of its Rural R&D for Profit program, the Grains Research and Development Corporation, Meat and Livestock Australia and Australian Wool Innovation. The research partners include the South Australian Research and Development Institute, Murdoch University, the Commonwealth Scientific and Industrial Research Organisation, the WA Department of Primary Industries and Regional Development, and Charles Sturt University, as well as grower groups. Project code: RnD4Profit-16-03-010.


Other trial partners Murdoch University, the Commonwealth Scientific and Industrial Research Organisation, the WA Department of Primary Industries and Regional Development, and Charles Sturt University
Download the trial report to view additional trial information

Method

Crop type Pasture: Medic
Treatment type(s)
  • Crop : Type
  • Crop : Variety
  • Seed treatment : Inoculant
Trial type Experimental
Trial design Randomised,Replicated,Blocked

Minnipa Agricultural Centre 2018

Sow date Not specified
Harvest date Not specified
Trial design method Not specified
Plot size Not specified
Plot replication Not specified
Plot blocking Not specified
Plot randomisation Not specified

Minnipa Agricultural Centre 2019

Sow date Not applicable
Harvest date Not applicable
Trial design method RCBD Randomised Complete Block Design
Plot size 5m x 1.5m
Plot replication 4
Plot blocking Random
Plot randomisation Y
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
Minnipa Agricultural Centre, SA Red sandy loam
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Minnipa Agricultural Centre, SA Calcarosol
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 Minnipa Agricultural Centre SA
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Climate

Minnipa Agricultural Centre SA 2019


Observed climate information

Rainfall avg ann (mm) 325mm
Rainfall avg gsr (mm) 242mm
Rainfall trial total (mm) 269mm
Rainfall trial gsr (mm) 208mm

Derived climate information

Minnipa Agricultural Centre 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

2019 trial report



Trial last modified: 07-10-2025 23:17pm AEST