Testing the nitrogen bank approach at Bute on a sandy soil

2022

Research organisatons
Funding source
Trengove Consulting Birchip Cropping Group

Trial details

Researcher(s) jordan bruce
James Hunt
Sarah Noack
Stuart Sherriff
Sam Trengove
Contact email samtrenny34@hotmail.com
Year(s) 2022
Contributor Trengove Consulting
Trial location(s) Bute, SA
Testing the nitrogen bank approach at Bute on a sandy soil locations
Aims

This trial is part of a larger series of experiments in the southern region aiming to compare the productivity (yield, protein), profitability (gross margin, risk) and sustainability (soil organic matter, carbon footprint, N losses) of different N management systems over the long term.

Key messages
  • Much of SA experienced above average spring rainfall with the growing season extending into November (71 mm received) at Bute, SA.    
  • Wheat grain yield and protein levels were high for N rates ranging from 72 kg N/ha to 143 kg N/ha.  
  • All N treatments resulted in a negative partial N balance indicating soil organic N was mined. This occurred to a smaller extent in the YP BOM (-15 kg N/ha) and district practice (-27 kg N/ha) treatments.
  • Grain yield response to applied N (15 - 143 kg N/ha) was up to 1.51 t/ha. Surprisingly high yields (6.46 t/ha) were achieved in the absence of applied N. This was likely driven by high starting soil mineral N (legume stubble) and high rates of mineralisation in the extended growing season.
Lead research organisation Birchip Cropping Group
Host research organisation Trengove Consulting
Trial funding source GRDC BWD2204002RTX
Related program N/A
Acknowledgments N/A
Other trial partners Not specified
Download the trial report to view additional trial information

Method

Crop type Cereal (Grain): Wheat
Treatment type(s)
  • Fertiliser: Rate
Trial type Experimental
Trial design Replicated

Bute 2022

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

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Climate

Derived climate information

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

Bute SA

NOTE: Exact trial site locality unknown - Climate data may not be accurate
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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 report and links

2022 Bute Nitrogen Bank Trial Report



Trial last modified: 16-01-2024 13:50pm AEST