Long term cropping systems trial


Research organisaton
Funding source

Trial details

Researcher(s) Sarah Noack (Hart Field Site Group)
Year(s) 2015
Contributor Hart Field Site Group
Trial location(s) Site 5, Hart, SA
Long term cropping systems trial locations
  • To compare the performance of three seeding systems and two nitrogen strategies.
  • This is a rotation trial to assess the longer term effects of seeding systems and higher fertiliser input systems on soil fertility, crop growth and grain yield and quality.
Key messages
  • There was no significant difference between seeding systems or level of nutrition on grain yield or oil content.
  • Soil available N was the same for all seeding systems pre-seeding however, the no till treat had released more available soil N.
  • In-season more available N was measured in the high nutrition treatment compared to the medium.
Lead research organisation Hart Field Site Group
Host research organisation Hart Field Site Group
Trial funding source SAGIT H0113
Related program N/A

The HFSG thank the South Australians Grains Industry Trust (SAGIT) for providing funding to support this research (H0113). We also thank all the growers who assisted with trial seeding, spraying and harvesting. Thanks to Pete McEwin and Stuart McIntosh for donating seed for the trial.

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


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

Hart 2015

Sow rate or Target density 44Y89 (CL) canola @ 5 kg/ha
Sow date 3 June 2015
Harvest date Not specified
Plot size 35m x 13m
Plot replication Not specified
  • DAP/Urea (22:14:00:05) + 0.8% Zn at seeding @ 100 kg/ha
  • Medium nutrition UAN (42:0) @ 87 L/ha on 11th Aug
  • High nutrition UAN (42:0) @ 87 L/ha on 11th Aug and 87 L/ha on 16th Sept
Download the trial report to view additional method/treatment information

Download results

Trial results Table 1

# Treatment 1
Treatment 2
Emergence plants (plants/m2)
1 Strategic seeding Medium nutrition 56
2 Strategic seeding High nutrition 70
3 Disc seeding Medium nutrition 57
4 Disc seeding High nutrition 68
5 No-till Medium nutrition 78
6 No-till High nutrition 83

Emergence plants plants/m2

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: 06-06-2019 15:41pm AEST