Maize nitrogen rate x hybrid responses – Gurley 2015–16

2015 - 2016

Research organisaton
Funding source

Trial details

Researcher(s) Mark Hellyer (NSW DPI)
Peter Perfrement (NSW DPI)
Loretta Serafin (NSW DPI)
Year(s) 2015 - 2016
Contributor Department of Primary Industries NSW
Trial location(s) Gurley, NSW
Maize nitrogen rate x hybrid responses – Gurley 2015–16 locations
Aims

To compare plant characteristics and grain yield responses of three maize hybrids to varying rates of N applied at sowing or in crop under dryland conditions at Gurley, south-east of Moree.

Key messages
  • The starting soil nitrogen (N) at this site was 73 kg N, which was sufficient to supply the average crop yield of 2.1 t/ha, which was achieved.
  • Consequently, there was no response to any of the nitrogen treatments applied.
  • Hybrid selection had a major impact on plant structures, grain yield and quality. Pioneer 1467 produced more tillers than the other two hybrid maize varieties.
  • Pacific 606 produced the highest grain yield at 2.65 t/ha and also had the highest 1000 grain weight and lowest screenings of the three hybrid maize varieties examined.
     
Lead research organisation Department of Primary Industries NSW
Host research organisation N/A
Trial funding source GRDC DAN00195
Related program Tactical crop agronomy of sorghum and maize in the northern region - NSW component
Acknowledgments

This experiment was part of the project Tactical crop agronomy of sorghum and maize in the northern region – NSW component (DAN00195), with joint investment by NSW DPI and GRDC. Technical assistance provided by Delphi Ramsden, Angus Hombsch, Alice Bowler and Bronwyn Brennan (NSW DPI) is gratefully acknowledged. Thanks to Scott Carrigan, “Kelvin” Gurley for hosting the trial.


Other trial partners Co-operator: Scott Carrigan
Download the trial report to view additional trial information

Method

Crop type Cereal (Grain): Maize
Treatment type(s)
  • Crop: Variety
Trial type Experimental
Trial design Replicated

Gurley 2015

Sow rate or Target density Not specified
Sow date Not specified
Harvest date Not specified
Plot size Not specified
Plot replication Not specified
Fertiliser Not specified
Other trial notes

Treatments:

Hybrids (3)

Pacific 606; Pioneer 1414; Pioneer 1467

Nitrogen rates (6)

0, 50, 75,100, 75:75 split and 150 kg/ha of N applied at sowing as urea. The 75:75 split treatment had 75 kg/ha applied at sowing and 75 kg/ha surface spread at the 6–8 leaf growth stage.

Gurley 2016

Sow rate or Target density Target 3.0 plants/m2 (30,000 plants/ha) on 100 cm solid plant rows
Sow date 14 September 2015
Harvest date 11 February 2016
Plot size Not specified
Plot replication Not specified
Fertiliser

42 kg/ha Granulock Z applied to all plots at sowing

Other trial notes

Treatments:

Hybrids (3)

Pacific 606; Pioneer 1414; Pioneer 1467

Nitrogen rates (6)

0, 50, 75,100, 75:75 split and 150 kg/ha of N applied at sowing as urea. The 75:75 split treatment had 75 kg/ha applied at sowing and 75 kg/ha surface spread at the 6–8 leaf growth stage.

Download the trial report to view additional method/treatment information

Download results

Trial results Maize hybrid performance at 'Kelvin', Gurley in 2015-16

# Variety
1000 grain weight (g) Yield (t/ha) Cobs/m2 (cobs/m2) Kernel no. (kernal no./m2) Establishment plants (plants/m2) Tillers (no./m2) Tillers (tillers/plant)
1 Pacific 606 279 2.65 3.6 958 3.1 0.1 0
2 Pioneer 1414 233.2 1.78 4.4 762 3.6 0.3 0.1
3 Pioneer 1467 234.1 2.06 4.4 878 3.7 1 0.3

1000 grain weight g


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Cobs/m2 cobs/m2


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Establishment plants plants/m2


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Kernel no. kernal no./m2


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Tillers no./m2


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Tillers tillers/plant


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Yield t/ha


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Observed trial site soil information
Trial site soil testing
Site Depth Type pH EC P K N A OC CAT
Gurley, NSW 0 - 10cm 6.50 8.00 0.80
Gurley, NSW 10 - 30cm 7.40 3.00 0.45
Gurley, NSW 30 - 60cm 7.80 0.00 0.42
Gurley, NSW 60 - 90cm 7.50 3.00 0.32
Gurley, NSW 90 - 120cm 7.50 4.00 0.20
Soil conditions
Trial site Soil texture
Gurley, NSW Not specified
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Gurley, NSW Vertosol
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 Gurley NSW
2016 182.4mm
2015 166.4mm
2014 162.2mm
2013 168.4mm
2012 202.5mm
2011 213.1mm
2010 222.1mm
2009 206.0mm
2008 207.6mm
2007 217.3mm
2006 217.8mm
2005 244.9mm
2004 281.1mm
2003 285.1mm
2002 294.3mm
2001 382.3mm
2000 506.8mm
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

Gurley NSW 2016


Observed climate information

Rainfall trial gsr (mm) 204.5mm

Derived climate information

Gurley NSW

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

2016 trial report



Trial last modified: 06-08-2019 07:54am AEST