Row spacing x plant population interaction (Boort)

2019

Research organisaton
Funding source

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) Boort, VIC
Row spacing x plant population interaction (Boort) locations
Aims

To identify the optimum plant populations for the grain maize Pioneer Hybrid 1756 at 500 and 750mm row spacing for grain yield.

Key messages
  • Decreasing row spacing from 750mm (approx. 30 inch) to 500mm (approx. 20inch) significantly increased grain yield with a 3.21 t/ha yield increase (trials hand harvested).
  • There were no significant effects of plant population in the trial when 90,000, 105,000 and 120,000 plants/ha were compared.
  • Variable wind damage resulted in hand harvest quadrats being used as the basis of yield this invariably increases overall yields compared to machine harvest.
  • There was no interaction between plant population and row spacing evident within the trial.
  • At 500mm row spacings there was a significant increase in dry matter production and nitrogen uptake in the canopy compared to the 750mm row spacing when recorded at harvest.
  • A Strong linear relationship between dry matter production and nitrogen content was present throughout the growing season observed at V6 (R2=0.867) and at harvest (R2 = 0.824).
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)
  • Sowing: Rate
  • Sowing: Row Spacing
Trial type Experimental
Trial design Randomised,Replicated,Blocked

Boort 2019

Sow rate or Target density 90000 plants/ha, 105000 plants/ha and 120000 plants per ha at 500 and 750 mm row spacing
Sow date 7 November 2019
Harvest date 16 April 2020
Plot size Not specified
Plot replication Not specified
Other trial notes

Previous crop: Fallow
Variety: Pioneer Hybrid 1756
Irrigation Type: Subsurface drip 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
Boort, VIC Clay
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Boort, VIC Calcarosol
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 Boort VIC
2019 228.6mm
2018 240.1mm
2017 309.7mm
2016 284.4mm
2015 239.9mm
2014 246.4mm
2013 286.0mm
2012 347.5mm
2011 380.3mm
2010 355.0mm
2009 273.3mm
2008 270.0mm
2007 249.3mm
2006 256.7mm
2005 252.9mm
2004 231.7mm
2003 216.4mm
2002 186.4mm
2001 238.2mm
2000 268.4mm
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.

Boort 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: 17-03-2022 10:02am AEST