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Nitrogen Use Efficiency Trial – N Timing (Peechelba East)

2019

Research organisation
Funding source
Field Applied Research (FAR) Australia
<abbr title='Grains Research and Development Corporation'>GRDC</abbr>

Trial details

Researcher(s) Damian Jones
Ben Morris
Nick Poole
Tom Price
Michael Straight
Year(s) 2019
Contributor Field Applied Research (FAR) Australia
Trial location(s) Peechelba East, VIC
Nitrogen Use Efficiency Trial – N Timing (Peechelba East) locations
Aims

To evaluate the influence of different rates and timings of 46 %N prilled urea applied N prior to later applications of liquid N applied as fertigation applied in grain maize.

Key messages
  • With an average grain yield of 18.28t/ha there were no significant differences in header grain yield from varying nitrogen rate or timing of prilled urea (46%N).
  • Where no nitrogen was applied early in the season a significant decrease in nitrogen content was observed in the stalk of the plants at harvest, but there no influence on grain N content.
  • Test weight was significantly reduced when only 207kg N/ha was applied to the crop, there was no significant benefit in test weight when the highest rate of nitrogen was applied.
Lead research organisation Field Applied Research (FAR) Australia
Host research organisation Field Applied Research (FAR) Australia
Trial funding source GRDC FAR1906-003RTX
Related program N/A
Acknowledgments N/A
Other trial partners Irrigated Cropping Council
Download the trial report to view additional trial information

Method

Crop type Cereal (Grain): Maize
Treatment type(s)
  • Fertiliser : Rate
  • Fertiliser : Timing
Trial type Experimental
Trial design Randomised,Replicated,Blocked

Peechelba East 2019

Sow date 13 November 2019
Harvest date 31 May 2020
Plot size Not specified
Plot replication Not specified
Fertiliser

Pre sowing Urea N, Pre-Drill soild urea, kg N/ha: 0, 90, 180

Post sowing nitrogen (207 N) was applied via fertigation with applications on V4 (46N), V8 (60N), pre-tasselling (101 N) on 10 Dec, 26 Dec, 14 Jan and Jan 15


Available soil N assessed prior to sowing 33 kg N/ha (0-60cm)
Other trial notes

Previous crop: Oaten hay
Variety: Pioneer Hybrid 1756
Irrigation Type: Overhead pivot
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
Peechelba East, VIC Loam over clay
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Peechelba East, VIC Chromosol
Soil Moisture Source: BOM/ANU
Average amount of water stored in the soil profile during the year, estimated by the OzWALD model-data fusion system.
Year Peechelba East VIC
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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.

Peechelba East VIC

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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

2019 trial report



Trial last modified: 13-01-2025 21:26pm AEST