Long-term cropping systems trial


Research organisaton
Funding source

Trial details

Researcher(s) Sarah Noack and Peter Hooper (Hart Field Site Group)
Year(s) 2013
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 nutrition strategies.

Key messages
  • Wheat grain yield was not significantly different between seeding systems or level of nitrogen, averaging 5 t/ha.
  • The high nutrition treatment increased grain protein.
  • The high nutrition treatments had accumulated 28 kg N/ha more soil available nitrogen compared to the medium treatments to a depth of 60 cm.
Lead research organisation Hart Field Site Group
Host research organisation Hart Field Site Group
Trial funding source SAGIT
Related program N/A

Funded by South Australian Grains Industry Trust (SAGIT) and conducted in collaboration with farmers Michael Jaeschke, Justin Wundke and Tom and Ashley Robinson.

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


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

Hart 2013

Sow rate or Target density Cobra wheat @ 100 kg/ha
Sow date Not specified
Harvest date Not specified
Plot size 35m x 13m
Plot replication 3

DAP/urea (27:12) @ 90 kg/ha

High nutrition UAN (42:0) @ 70 L/ha and Twin Zinc @ 0.5 L/ha (14th August) 

Download the trial report to view additional method/treatment information

Download results

Trial results Table 1

# Treatment 1
Protein (%) Grain yield (t/ha) Screenings (%) Test weight (kg/hL)
1 High nutrition + disc 13.8 4.8 6.6 73.6
2 High nutrition + no till 12.9 5 7.4 70.3
3 Medium nutrition + disc 12.4 5.2 4.7 73.4
4 Medium nutrition + no till 12.5 5 5.1 73.1

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 Calcarosol
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



Site 5, Hart SA 2013

Observed climate information

Rainfall trial gsr (mm) 303mm

Derived climate information

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 14:47pm AEST