Maximising de-compaction and minimising water repellence in sandy soils at Binnu, 2015 - dune site 

2015

Research organisatons
Funding source

Trial details

Researcher(s) Paul Blackwell and Bindi Isbister (DAFWA)
Year(s) 2015
Contributor Northern Agri Group
Trial location(s) Site 9, Binnu, WA
Maximising de-compaction and minimising water repellence in sandy soils at Binnu, 2015 - dune site  locations
Aims

Identify profitable long term management of subsoil compaction for deep sandy soil at Binnu.

Key messages
  • Ripping to 550mm increased yeild in the deep pale sand (Dune) and yellow loamy sand (swale).
  • Topsoil slotting, with soil inclusion plates attached to the rear of deep ripper tines, can increase yeild from deep sandy soils more than by deeper ripping alone.
  • Deeper ripping with topsoil slotting also helped lessen grain losses from dry and hot spring weather.
  • If slotting maintains the de-compaction response longer it will provide very good returnson investment.   
Lead research organisation Department of Agriculture and Food WA
Host research organisation N/A
Trial funding source GRDC DAW00243
Related program Minimising the impact of soil compaction on crop yield
Acknowledgments

Piet and Dale Diepeveen for trial site, Damien Harris for loaning ripping tractor and Chris Pinkney, Agrarian, for support and advice.


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

Method

Crop type Wheat
Treatment type(s)
  • Soil: Type
  • Soil: Compaction
  • Soil amelioration: Type
Trial type Experimental
Trial design Replicated

Binnu 2015

Sow rate or Target density 70kg/ha
Sow date 11 May 2015
Harvest date Not specified
Plot size Not specified
Plot replication 3
Fertiliser

65kg/ha MAP:MOP 70:30 blend, deep banded post emergent 115kg UREA:AMSOL:MOP 56:28:16

Download the trial report to view additional method/treatment information

Download results

Trial results Table 1

@T1: 1 year @T2: 5 years
# Variety
Treatment 1
Treatment 2
Treatment 3
Screenings (%) Protein (%) Grain yield (t/ha) Return on investment ($/ha) Return on investment ($/ha)
1 Mace Nil ripping Nil yellow pale sand (dune) 2.2 13.4 0.63 0 0
1 Mace 300mm ripped Nil yellow pale sand (dune) 3.1 11.9 0.65 -1 0
1 Mace 550mm ripped Nil yellow pale sand (dune) 3.9 11.5 1.49 5 26
2 Mace 550mm with topsoil slotting plates Nil yellow pale sand (dune) 2.9 14.7 1.69 6 36
2 Mace Nil ripping 5t/ha lime yellow pale sand (dune) 1.2 11.8 0.78 -2 -5
2 Mace 300mm ripped 5t/ha lime yellow pale sand (dune) 2 10.6 0.78 -1 0
3 Mace 550mm ripped 5t/ha lime yellow pale sand (dune) 1.2 9.2 1.38 0 4
3 Mace 550mm with topsoil slotting plates 5t/ha lime yellow pale sand (dune) 1.5 11.4 1.83 1 8
3 Mace Nil ripping 10t/ha organic pellets yellow pale sand (dune) 1.5 11.8 0.83 -1 -1
4 Mace 300mm ripped 10t/ha organic pellets yellow pale sand (dune) 1.8 10.5 1.07 -1 -1
4 Mace 550mm ripped 10t/ha organic pellets yellow pale sand (dune) 2.1 9.4 1.66 -1 -1
4 Mace 550mm with topsoil slotting plates 10t/ha organic pellets yellow pale sand (dune) 1.6 11.8 1.57 -1 -1
5 Mace Nil ripping Nil loamy yellow sand (swale) 1.6 10.1 1.9 0 0
5 Mace 300mm ripped Nil loamy yellow sand (swale) 1.8 8.6 1.51 -5 -17
5 Mace 550mm ripped Nil loamy yellow sand (swale) 1.6 8.3 2.25 1 10
6 Mace 550mm with topsoil slotting plates Nil loamy yellow sand (swale) 1 9.7 3.34 8 39
6 Mace Nil ripping 5t/ha lime loamy yellow sand (swale) 1.9 11 2.11 -5 -17
6 Mace 300mm ripped 5t/ha lime loamy yellow sand (swale) 1.6 10.4 2.05 -1 0
7 Mace 550mm ripped 5t/ha lime loamy yellow sand (swale) 2.2 9.7 2.78 0 5
7 Mace 550mm with topsoil slotting plates 5t/ha lime loamy yellow sand (swale) 1.9 10.9 3.57 2 11
7 Mace Nil ripping 10t/ha organic pellets loamy yellow sand (swale) 1.6 10.1 2.23 -1 -1
8 Mace 300mm ripped 10t/ha organic pellets loamy yellow sand (swale) 1.5 9 2.58 -1 -1
8 Mace 550mm ripped 10t/ha organic pellets loamy yellow sand (swale) 1.8 8.3 3.47 -1 -1
8 Mace 550mm with topsoil slotting plates 10t/ha organic pellets loamy yellow sand (swale) 1.3 9.3 4.2 -1 0
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24 Mace

Grain yield t/ha


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Protein %


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Return on investment $/ha


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Screenings %


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Observed trial site soil information
Trial site soil testing
Not specified
Soil conditions
Trial site Soil texture
Site 9, Binnu, WA Yellow deep sand
Derived trial site soil information
Australian Soil Classification Source
Trial site Soil order
Site 9, Binnu, WA Chromosol
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

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Climate

Site 9, Binnu WA 2015


Observed climate information

Rainfall trial gsr (mm) 212.5mm

Derived climate information

Site 9, Binnu WA

NOTE: Exact trial site locality unknown - Climate data may not be accurate
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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.




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Trial last modified: 25-06-2019 14:33pm AEST