Long term comparison of seeding systems


Research organisaton
Funding source

Trial details

Researcher(s) Sarah Noack (Hart Field Site Group)
Year(s) 2016
Contributor Hart Field Site Group
Trial location(s) Site 5, Hart, SA
Long term comparison of seeding systems locations

To compare the performance of three seeding systems and two nitrogen (N) strategies.

Key messages
  • Seeding systems did not affect wheat grain yield, averaging 5.3 t/ha.
  • Good rainfall and cool temperatures during grain fill increased yield potential and the higher N rate resulted in a 1.2 t/ha yield advantage.
  • Available soil N pre-seeding ranged from 80 – 190 kg N/ha with 75 kg N/ha more accumulated under the high N rate.
Lead research organisation Hart Field Site Group
Host research organisation Hart Field Site Group
Trial funding source SAGIT H116
Related program N/A

The HFSG thank the South Australians Grains Industry Trust (SAGIT) for providing funding to support this research (H116). They also thank all the growers and SARDI Clare who assisted with trial seeding, spraying and harvesting. Thanks to Australian Grain Technologies for donating the Scepter wheat for the trial. 

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


Crop type Wheat
Treatment type(s)
  • Variety
  • Variety: Type
Trial type Experimental
Trial design Randomised,Replicated,Blocked

Hart 2016

Sow rate or Target density Scepter wheat @ 107 kg/ha
Sowing machinery
  • Disc – sown into standing stripper front stubble with John Deere 1980 single disc at 152 mm (6”) row spacing, closer wheels and press wheels.
  • Strategic – worked up pre-seeding, sown with 100 mm (4”) wide points at 200 mm (8”) row spacing with finger harrows. · No-till – sown into standing stubble in one pass with a Flexicoil 5000 drill, 16 mm knife points with 254 mm (9”) row spacing and press wheels.
Sow date 24 May 2016
Harvest date Not specified
Plot size 35m x 13m
Plot replication Not specified

MAP (10:22) at seeding @ 70 kg/ha

Download the trial report to view additional method/treatment information

Download results

Trial results Table 1

# Treatment 1
Treatment 2
Screenings (%) Test weight (kg/hL) Protein (%) Grain yield (t/ha)
1 Strategic Medium 1.1 81.4 8.3 4.8
2 Strategic High 1.3 80.8 10.3 5.9
3 No till Medium 1.2 81.4 6.7 4.2
4 No till High 1.6 79.6 9.8 5.8
5 Disc Medium 1.2 81.4 7.4 5
6 Disc High 1 81.3 9.3 5.9

Grain yield t/ha


Protein %


Screenings %


Test weight kg/hL

Observed trial site soil information
Trial site soil testing
Not specified
Soil conditions
Trial site Soil texture
Site 5, Hart, SA Not specified
Derived trial site soil information
Australian Soil Classification Source
Trial site Soil order
Site 5, Hart, SA 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



Derived climate information

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

Site 5, Hart SA


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: 11-06-2019 13:46pm AEST