Nitrogen Use Efficiency – Product and Timing (Kerang)

2020

Research organisaton
Funding source

Trial details

Researcher(s) Damian Jones
Ben Morris
Nick Poole
Tom Price
Year(s) 2020
Contributor Field Applied Research (FAR) Australia
Trial location(s) Kerang, VIC
Nitrogen Use Efficiency – Product and Timing (Kerang) 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
  • In all treatments where N fertiliser was applied there were no statistically significant differences in grain yield.
  • The highest yield achieved was 16.82 t/ha with the total applied N of 300 kg N/ha, applied as 100 kg N/ha at sowing, then 3 subsequent topdressings of 66 kg N/ha up to tasselling, but achieved similar yields to applying 300 kg N /ha at sowing only.
  • The nil applied N treatment yielded 10.61 t/ha and had a dry matter of 19.58t/ha and a N content of 176kg N/ha at harvest.
  • Soil available N prior to sowing and watering up was 44 kg N/ha (0-60cm).
  • The nil N applied treatment contained a total of 176 kg N/ha at harvest, suggesting in-crop mineralisation resulted in 132 kg N/ha being released from the soil during the course of the season.
  • In this trial as long as at least 100 N (and 200 kg N/ha in total) was applied beginning at sowing, product or timing did not influence yield.
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

Kerang 2020

Sow date 3 November 2020
Harvest date 20 May 2021
Plot size Not specified
Plot replication Not specified
Fertiliser

Please find treatment information in Table 1 on the first page of the attached trial report.

Other trial notes

Previous crop: Grass dominant pasture (3 years)
Variety: Pioneer Hybrid 1756
Irrigation Type: Border check irrigation

 

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
Kerang, VIC Grey clay
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Kerang, VIC Vertosol
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.

Kerang 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

2020 trial report



Trial last modified: 17-03-2022 09:59am AEST