Serradella in sub tropical pastures 2013 vs 2015

2013, 2015
CC BY 4.0

Research organisatons
Funding sources

Trial details

Researcher(s) Christiaan Valentine (DAFWA)
Year(s) 2013, 2015
Contributor West Midlands Group
Trial location(s) Regans Ford, WA
Serradella in sub tropical pastures 2013 vs 2015 locations
Aims

To determine how serradella performs when introduced to a sub tropical pasture stand.

Key messages

Legumes are an important tool in a perennial sward to supply a nitrogen source and maintain production. Serradella can be successfully established and persist in an established perennial pasture; this includes persisting as part of a crop/pasture rotation in perennials.

In the more favorable year of 2013 serradella biomass and pod production was higher. There is a yield penalty for serradella when sown into perennials, the penalty though will vary depending on the seasonal conditions. Perennials are still actively growing in March and April before the cooler weather starts to suppress their growth and they become less competitive. An indecisive Autumn break can allow active perennials to deplete moisture reserves that would normally allow germinating serradella to survive. These results clearly demonstrate the advantage of a successful early germination and establishment, although an indecisive break and low rainfall year will exaggerate the yield penalty when serradella is sown into perennials. Additionally, the suppressive effect of a grass selective on perennial growth may reduce competition with annual pasture species and can be used as a tool to increase annual legume production.

Lead research organisation Department of Agriculture and Food WA
Host research organisation West Midlands Group
Trial funding source DAFWA
Trial funding source MLA
Trial funding source GRDC
Related program N/A
Acknowledgments

Thanks go to Daisy and Peter Negus for hosing the trial and the DAFWA Geraldton Research Support Unit for sowing and managing the trial. This research is being supported by the Caring for Our Country project ‘Transforming the Northern Sandplain’ and GRDC through the Future Farm Industries CRC’s EverCrop project (P2 FP09).


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

Method

Crop type : N/A
Treatment type(s)
  • Crop: Type
Trial type Experimental
Trial design Replicated

Regans Ford 2013

Sowing machinery Not specified
Sow date Not specified
Harvest date Not specified
Plot size Not specified
Plot replication Not specified

Regans Ford 2015

Sowing machinery

DAFWA cone seeder (1.5 m wide), 220 mm row spacing, tynes with trailing press wheels, offset to perennials rows (DGPS with +/- 2cm accuracy and auto steer).

Sow date Not specified
Harvest date Not specified
Plot size 7m x 15m
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
Regans Ford, WA Deep sand
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Regans Ford, WA 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 Regans Ford WA
2015 138.3mm
2014 133.1mm
2013 151.9mm
2012 138.2mm
2011 136.9mm
2010 129.1mm
2009 142.1mm
2008 151.9mm
2007 107.9mm
2006 103.7mm
2005 142.2mm
2004 124.4mm
2003 142.9mm
2002 113.0mm
2001 115.0mm
2000 134.4mm
National soil grid Source: CSIRO/TERN
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.

Regans Ford WA

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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

2015 trial report



Trial last modified: 06-08-2019 07:54am AEST