Serradella in sub tropical pastures 2013 vs 2015


Research organisatons
Funding sources

Trial details

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

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

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


Crop type Pulse: Serradella
Treatment type(s)
  • Crop
Trial type Experimental
Trial design Replicated
Sow rate or Target density Not specified
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).

Plot size 7m x 15m
Plot replication Not specified
Plot blocking Not specified
Plot randomisation Not specified
Paddock history Not specified
Fertiliser Not specified
Herbicide Not specified
Insecticide Not specified
Fungicide Not specified
Pesticide Not specified
Soil amelioration Not specified
Seed treatment Not specified
Inoculant Not specified
Tillage Not specified
Other trial notes 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
, WA Deep sand
Derived trial site soil information
Australian Soil Classification Source
Trial site Soil order
, WA Tenosol
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



WA 2015

Derived climate information
BOM Data source LAKE NAMMEN [1284] 15km proximity to trial site location


Some data on this site is sourced from the Bureau of Meteorology

SILO weather estimates sourced from
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