Seed closure, emergence and visor of zero-till wheat

CC BY 4.0

Research organisaton
Funding source

Trial details

Researcher(s) Andrew Bird
Greg Butler
Year(s) 2015
Contributor South Australian No-till Farmers Association
Trial location(s) Halbury, SA
Seed closure, emergence and visor of zero-till wheat locations

To assess the emergence and vigour of wheat sown with a zero-till system with:

  • press wheel
  • in-furrow wheel (seed-lock)
  • in-furrow seed firmer (nylon)
Key messages

In furrow devices were superior to a press wheel.

The seed lock wheels were significanly more durable compared to in-furrow seed firmers.

Lead research organisation N/A
Host research organisation N/A
Trial funding source NLP Innov 069
Related program N/A

Special thanks to Scott Clark, Tom Robinson and Anthony Pfi tzner for their time and the use of their seeding rigs. This work was conducted by SANTFA with support from the National Landcare Programme. 

Other trial partners SANTFA, Landcare
Download the trial report to view additional trial information


Crop type Cereal (Grain): Wheat
Treatment type(s)
  • Sowing: Method
Trial type Experimental
Trial design Unreplicated

Halbury 2015

Sowing machinery

Zero-Till disc (JD 1820)

Sow date Not specified
Harvest date Not specified
Plot size Not specified
Plot replication Not specified
Psuedoreplication Not specified
Tillage zero-till
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
Halbury, SA Not specified
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Halbury, SA Chromosol
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 Halbury SA
2015 452.5mm
2014 506.9mm
2013 457.7mm
2012 500.1mm
2011 528.2mm
2010 478.3mm
2009 434.0mm
2008 408.5mm
2007 469.7mm
2006 501.2mm
2005 506.0mm
2004 463.4mm
2003 492.3mm
2002 482.1mm
2001 525.1mm
2000 493.4mm
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



Derived climate information

No observed climate data available for this trial.
Derived climate data is determined from trial site location and national weather sources.

Halbury SA


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

Trial last modified: 22-05-2019 13:32pm AEST