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Seed size, sowing rate and phosphorus in barley: do your sums before you sow

2017

Research organisation
Funding source
Birchip Cropping Group
<abbr title='Grains Research and Development Corporation'>GRDC</abbr>

Trial details

Researcher(s) Louisa Ferrier (BCG)
Year(s) 2017
Contributor Birchip Cropping Group
Trial location(s) Curyo, VIC
Further information View external link
Seed size, sowing rate and phosphorus in barley: do your sums before you sow locations
Aims

To assess the impact of small and large seed size sown to target plant density and kg/ha with different P rates on barley yield and quality.

Key messages
  • Growers should check the grain weight, germination of retained seed and calibrate accordingly to achieve consistent plant establishment from season to season.
  • Correct seeder calibration amounted to a 0.3t/ha yield or $60/ha gain.
  • If phosphorus (P) soil reserves are low, consider increasing P fertiliser rates to achieve optimal yields.
Lead research organisation Birchip Cropping Group
Host research organisation N/A
Trial funding source GRDC BWD00024
Related program Maintaining profitable farming systems with retained stubble
Acknowledgments

This research was funded by the GRDC as part of the ‘Maintaining profitable farming systems in retained stubble’ project (BWD00024) and BCG members through their membership.
Other trial partners Not specified
Download the trial report to view additional trial information

Method

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

Curyo 2017

Sow rate or Target density 130 plants/m2
Sowing machinery

Knife points, press wheels, 30cm row spacing
Sow date 11 May 2017
Harvest date 12 November 2017
Plot size Not specified
Plot replication Not specified
Fertiliser

June 1 Urea @ 90kg/ha
August 6 Urea @ 60kg/ha
Herbicide

June 15 Velocity® @ 670mL/ha + MPCA LVE® @ 400mL/ha+ Hasten 0.5%
Insecticide

September 9 Lorsban® @ 600mL/ha
Fungicide

June 22 Propiconazole® @ 300mL/ha
August 6 Prosaro® @ 300mL/ha + BS100 0.25%
Download the trial report to view additional method/treatment information

Download results

Trial results Table 1

# Treatment 1
Treatment 2
Establishment plants (plants/m2) Grain yield (t/ha) Retention (%)
1 █ Calibrated seeding rates █ Small seed @ 51kg/ha 125 4.9 94.7
2 █ Calibrated seeding rates █ Large seed @ 90kg/ha 112 4.9 94.7
3 █ 'Uncalibrated' seeding rates █ Large seed @ 51kg/ha 66 4.6 95
4 █ 'Uncalibrated' seeding rates █ Small seed @ 90kg/ha 201 5 93.6

Grain yield t/ha

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Establishment plants plants/m2

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Retention %

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Observed trial site soil information
Trial site soil testing
Site Depth Type pH EC P K N A OC CAT
Curyo, VIC 0 - 10cm sandy loam 18.00
Soil conditions
Trial site Soil texture
Curyo, VIC Sandy loam
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Curyo, 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.
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Climate

Curyo VIC 2017

Observed climate information

Rainfall trial total (mm) 297mm
Rainfall trial gsr (mm) 215mm

Derived climate information

Curyo 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

2017 trial report



Trial last modified: 05-07-2019 13:35pm AEST