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Alternative soil ameliorants

2004
CC BY 4.0

Research organisations
Liebe Group Elders

Trial details

Researcher(s) David Scholz (Elders Ltd)
Brad Westphal (Elders Ltd)
Year(s) 2004
Contributor Liebe Group
Trial location(s) West Buntine, WA
Alternative soil ameliorants locations
Aims

To investigate the benefits of Kelpak, seaweed extract containing high concentrations of auxin, a plant growth hormone.

Key messages
  • No significant increase in yield from applying Kelpak.
  • No significant difference in yields between different rates of Kelpak.
  • Other preliminary trials have shown responses to high rates of Kelpak.
  • Need to repeat trials where environmental factors are not restricting.
  • May only have a fit when we have a good finish to the season.
Lead research organisation Elders Ltd
Host research organisation N/A
Related program N/A
Acknowledgments
  • Technically reviewed by Peter Carlton (Elders Ltd).
Other trial partners Not specified
Download the trial report to view additional trial information

Method

Crop type Cereal (Grain): Wheat
Treatment type(s)
  • Soil Improvement : Rate
Trial type Experimental
Trial design Replicated

West Buntine 2004

Sow rate or Target density 80 kg/ha Calingiri wheat
Sow date 22 June 2004
Harvest date Not specified
Plot size 20m x 2.5m
Plot replication 6
Paddock history 2001 = Wheat, 2002 = Wheat, 2003 = Lupins
Fertiliser

80 kg/ha DAP at seeding: 2nd August: 40 kg/ha urea
Herbicide

15th June: 1 L/ha Glyphosate

22nd June: 1 L/ha trifluralin

Also had a late radish spray
Download the trial report to view additional method/treatment information

Download results

Trial results Table 1

# Treatment 1
Hectolitre weight (kg/hL) Protein (%) Screenings (%) Grain yield (t/ha)
1 █ 0 L Kelpak 78 10.6 2.5 1.2
2 █ 2 L Kelpak 79 10.6 2.9 1.18
3 █ 4 L Kelpak 78 10.6 2.7 1.15
4 █ 8 L Kelpak 80 10.9 3 1.21

Grain yield t/ha

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Hectolitre weight kg/hL

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Protein %

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Screenings %

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Observed trial site soil information
Trial site soil testing
Site Depth Type pH EC P K N A OC CAT
West Buntine, WA 0 - 10cm Sand over Gravel
West Buntine, WA 10 - 30cm Sand over Gravel
Soil conditions
Trial site Soil texture
West Buntine, WA Sand over gravel
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
West Buntine, WA Sodosol
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 West Buntine WA
2004 179.0mm
2003 186.4mm
2002 157.9mm
2001 174.5mm
2000 227.6mm

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.

West Buntine 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

2004 trial report