Fertiliser type and placement effects on crop establishment, grain yield and water use efficiency on calcareous soils


Research organisatons

Trial details

Researcher(s) Fabio Arsego and Andrew Ware (SARDI)
Year(s) 2018
Contributor SARDI Minnipa Agricultural Centre
Trial location(s) Nunjikompita, SA
Fertiliser type and placement effects on crop establishment, grain yield and water use efficiency on calcareous soils locations

To determine the impact of different fertiliser products and placement relative to the seed on crop emergence, crop WUE and grain yield.

Key messages
  • Applying MAP with the seed at sowing resulted in a 25% increase in plant emergence compared to using DAP at Piednippie.
  • Applying MAP at sowing resulted in higher grain yields and better water use efficiency (WUE) in plots which had high seeding rates at Nunjikompita.
  • In combination with a high seeding rate, a blend of DAP and triple super phosphate (TSP) applied at sowing at Piednippie and Nunjikompita (plus urea) resulted in grain yields which were closer to the crop yield potential than the control.
Lead research organisation South Australian Research and Development Institute
Host research organisation N/A
Related program N/A

The present project is part of the bilateral investment initiative between SARDI and GRDC (scope study DAS00157). Special thanks to John Montgomerie and Tim Howard for providing the field trial sites at Piednippie and Nunjikompita. Thank you to Brenton Spriggs, Sue Budarick and Katherina for their collaboration with field activities. Thank you to Brett Masters, Prof. Glenn McDonald and Helena Oakey for reviewing the article.

Other trial partners Not specified


Crop type Wheat
Trial type
Trial design

Nunjikompita 2018

Sow date Not specified
Harvest date Not specified
Plot size Not specified
Plot replication Not specified
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
Nunjikompita, SA Not specified
Derived trial site soil information
Australian Soil Classification Source
Trial site Soil order
Nunjikompita, SA 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



Derived climate information

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

Nunjikompita 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.

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Trial last modified: 08-10-2019 11:25am AEST