NGN - N banking strategies to manage variable and unpredictable nitrogen demand in the LRZ of the southern region

2022

Research organisatons
Funding source

Trial details

Researcher(s) Michael Moodie
Contact email Michael@frontierfarming.com.au
Year(s) 2022
Contributor Birchip Cropping Group
Trial location(s) Walpeup, VIC
NGN - N banking strategies to manage variable and unpredictable nitrogen demand in the LRZ of the southern region locations
Aims

The aim of this trial is to compare a range of ‘N banking targets’  to ‘N crop demand’ driven N application strategies in terms of their impact on productivity (yield, protein), profitability (gross margin, risk) and sustainability (soil organic matter, carbon footprint,  losses) in diverse soil types in the LRZ.

Key messages
Not specified
Lead research organisation Birchip Cropping Group
Host research organisation Frontier Farming Systems
Trial funding source GRDC BWD2204-003RTX
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): Barley
Treatment type(s)
  • Fertiliser: Rate
  • Growth regulator: Application Method
  • Growth regulator: Type
Trial type Experimental
Trial design Randomised,Replicated,Blocked

Walpeup 2022

Sow date 22 May 2022
Harvest date 27 December 2022
Plot size Not specified
Plot replication 4
Other trial notes

Studies suggest Nitrogen (N) supply is still the single largest contributor to the water limited yield gap in wheat (Armstrong et al., 2019 and 2021; Hochman and Horan, 2018; Sadras and Angus, 2006), and the high proportion (~30%) of wheat with low grain protein, provides further evidence that yield is being limited by N supply (Sandral et al., 2018; GrainCorp report, 2015/16). Growers are currently using N crop demand (i.e. yield potential) to estimate N supply and inform tactical N application. This has a high level of uncertainty associated with it due to error associated with prediction of August to October rainfall. This trial aims to compare 'N banking targets' (and respective N budget scenarios) to traditional N crop demand driven strategies' to establish potential profits and risks associated with both. This site was selected to represent a deep sand typicl of the Victorian Northern Mallee.

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
Walpeup, VIC Not specified
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Walpeup, VIC 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.

Walpeup VIC

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 trial report



Trial last modified: 19-10-2023 12:02pm AEST