Irrigation Discussion Group Focus Paddock - Maize Nutrition

2023

Research organisation
Funding source

Trial details

Researcher(s) Damian Jones
Contact email damian@irrigationfn.com.au
Year(s) 2023
Contributor Irrigated Cropping Council
Trial location(s) Yalca, VIC, VIC
Further information View external link
Irrigation Discussion Group Focus Paddock - Maize Nutrition locations
Aims
  • validate the nitrogen results from the Optimising Irrigated Grains maize research results on a paddock scale
  • investigate P rates
Key messages
  • Soil test, potential large savings in inputs costs against the small cost of deep N testing
  • The results from the focus paddock aligned with the results of the Optimising Irrigated Grains research

 

 

Lead research organisation Irrigated Cropping Council
Host research organisation N/A
Trial funding source GRDC ICF2308-001SAX
Related program N/A
Acknowledgments

Ray Thornton, demonstration host farmer


Other trial partners Not specified
Download the trial report to view additional trial information

Method

Crop type Cereal (Grain): Maize
Treatment type(s)
  • Crop : Nutrition
  • Fertiliser : Rate
Trial type Demonstration
Trial design Unreplicated

Yalca, VIC 2023

Sow rate or Target density 90000 plants/ha
Sowing machinery

6-row maize planter

Sow date 31 October 2023
Harvest date 4 April 2024
Plot size 380m x 4.5m
Plot replication Not specified
Fertiliser

Treatment 1 | Standard: 186 kg/ha pre-plant + 80 kg/ha sowing + 98 kg/ha in crop = 364 kgN/ha + 66 kg P/ha

Treatment 2 | Low N: 94 kg/ha pre-plant + 80 kg/ha sowing + 98 kg/ha in crop = 272 kgN/ha + 66 kg P/ha

Treatment 3 | High P: 196 kg/ha pre-plant + 80 kg/ha sowing + 98 kg/ha in crop = 374 kgN/ha + 88 kg P/ha

Treatment4  | No Upfront N: 30 kg/ha pre-plant + 152 kg/ha at sowing + 98 kg/ha in crop = 280 kgN/ha + 66 kg P/ha

Download the trial report to view additional method/treatment information

Download results

Trial results Table 1

# Treatment 1
Grain yield (t/ha)
1 364 N + 66 P 18.1
2 272 N + 66 P 18.1
3 374 N + 88P 18.4
4 280 N + 66 P (no N upfront) 17.2

Grain yield t/ha


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Observed trial site soil information
Trial site soil testing
Not specified
Soil conditions
Trial site Soil texture
Yalca, VIC, VIC Not specified
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Yalca, VIC, VIC Sodosol

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.

Yalca, VIC 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

2023 trial report



Trial last modified: 27-03-2026 10:20am AEST