Understanding strategic tillage practices on crop performance and soil properties for a shallow sandy duplex at York

2018

Research organisaton
Funding source

Trial details

Researcher(s) Tim Boyes (AgVivo), Stephen Davies (DPIRD), Charlie Boyle and Joel Andrew (Map IQ)
Year(s) 2018
Contributor agVivo
Trial location(s) York, WA
Understanding strategic tillage practices on crop performance and soil properties for a shallow sandy duplex at York locations
Aims

To compare and showcase a range of strategic tillage options for amelioration of shallow sandy duplex soils (Sand over clay/gravel) and to assess their effectiveness at overcoming a range of soil constraints including topsoil water repellence and Compaction and increasing crop productivity over a period of 4-5 years.

Key messages
  1. Inversion ploughing of water repellent sands can significantly reduce repellence and increase critical components of grain yield.
  2. Deep ripping in the presence of problem background ryegrass can stimulate ryegrass emergence and worsen weed competition with the crop.
  3. The strength of the subsoil resource (i.e. clay component) appears important in sustaining the crop production potential and realisation of grain yield improvement.
Lead research organisation agVivo
Host research organisation N/A
Trial funding source GRDC AVP00003
Related program N/A
Acknowledgments

The research undertaken as part of this project is made possible by the significant contributions of growers through both trial cooperation and Primaries WA investment, the author would like to thank them for their continued support. The authors acknowledge the Boyle family for hosting, implementing and assisting with the management of the research site. The GRDC funded and DPIRD led DAW00244 soil water repellence project is acknowledged for supporting selected soil and crop assessments.


Other trial partners Map IQ
Download the trial report to view additional trial information

Method

Crop type Barley
Treatment type(s)
  • Soil: Compaction
  • Soil amelioration: Type
Trial type Experimental
Trial design Blocked

York 2018

Sowing machinery

Machines used for the tillage treatments included a Bednar Terraland deep ripper, Farmax rotary spader, Kverneland reversible mouldboard plough, a modified Shearer 5GP Plozza system one-way plough and a Grizzly Tiny off-set disc. All of the tillage treatments were applied prior to seeding.

Sow date Not specified
Harvest date Not specified
Plot size Not specified
Plot replication Not specified
Download the trial report to view additional method/treatment information

Download results

Trial results Table 1: Barley plant establishment counts in 2018

# Treatment 1
Establishment plants (plants/m2)
1 Control 103
2 Deep Rip 108
3 Deep Rip + Spade 95
4 Deep Rip + MBP 113
5 Deep Rip + Offset Disc 116
6 Deep Rip + Plozza Plough 119
7 Plozza Plough 125
8 MBP 126

Establishment plants plants/m2


Loading

Trial results Table 2: Tiller counts in September 2018

# Treatment 1
Cereal tillers (tillers/m2)
1 Control 436
2 Deep Rip 432
3 Deep Rip + Spade 507
4 Deep Rip + MBP 621
5 Deep Rip + Offset Disc 513
6 Deep Rip + Plozza Plough 604
7 Plozza Plough 656
8 MBP 587

Cereal tillers tillers/m2


Loading

Trial results Table 3

# Treatment 1
Grain yield (t/ha)
1 Control 3.59
2 Deep Rip 4.26
3 Deep Rip + Spade 4.8
4 Deep Rip + MBP 4.47
5 Deep Rip + Offset Disc 4.63
6 Deep Rip + Plozza Plough 4.78
7 Plozza Plough 4.94
8 MBP 4.47

Grain yield t/ha


Loading
Observed trial site soil information
Trial site soil testing
Not specified
Soil conditions
Trial site Soil texture
York, WA Not specified
Derived trial site soil information
Australian Soil Classification Source
Trial site Soil order
York, WA Anthroposol
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

Loading

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.

York WA

Loading
Loading
Loading

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 last modified: 25-09-2019 10:31am AEST