Agronomy to improve profit from wheat production - influence of time of sowing and seeding rate

2011
CC BY 4.0

Research organisatons
Funding source

Trial details

Researcher(s) Melanie Kupsch (DAFWA)
Christine Zaicou-Kunesch (DAFWA)
Year(s) 2011
Contributor West Midlands Group
Trial location(s) Badgingarra, WA
Agronomy to improve profit from wheat production - influence of time of sowing and seeding rate locations
Aims

To compare the effect of delayed seeding and seeding rates on the yield and quality performance of wheat varieties.

Key messages
  • Crop establishment was good for both sowing times due to good rainfall after seeding in 2011. Seed rates of 40 kg/ha achieved the target plant population of 100 plants/m2 on all sites. With each additional 40kg/ha of seed, plants numbers increased by approximately 50 plants/m2 at Badgingarra.   Ears/m2 increased from 219 to 320 with increasing seeding rate from 40 to 120kg/ha.   Averaged across all seeding rates, the ear numbers of Mace (227 ear/m2) were significantly lower than the other varieties (approx 275 ears/m2).
  • At Badgingarra, increasing the seeding rate from 40 to 120 kg/ha increased the mean grain yield of King Rock, Mace, and Wyalkatchem at both sowing times. The mean yields of Fortune and Calingiri were not influenced by seeding rate at the May sowing time, but did increase from 40 to 120 kg/ha at the second sowing time in June (Fig. 1).   Magenta mean yields were higher at the 120 kg/ha than 40 kg/ha seeding rate at the second sowing time, but were highest with the 80 kg/ha seeding rate at the first sowing time in May.   Fungal staining of Mace and Wyalkatchem (data not presented) was greater than 5% at all seeding rates when sown on May 18th at Badgingarra.  

Seeding rate did not influence the level of screenings at Badgingarra of the varieties sown on May 18th.   The screenings of Magenta and Fortune declined when seeding was increased from 40 to 120 kg/ha at the June sowing (Figure 2).

Fungal staining of Magenta was greater than 5% for Magenta when sown at the second sowing time.  This influenced the gross income of this varieties (Table 2).   Lower yields and downgrading due to hectoliter weight (<74HLW) influenced the economic returns of Calingiri and Fortune in the first sowing time.

In a season like 2011 with good winter rainfall across all sites and stored moisture at seeding, higher seeding rates either improved maintained high grain yields when sown in May and June in a range of environments in Western Australia.   There was no evidence that increased seeding rate increased screenings risk in a season with good winter and spring rainfall.

Lead research organisation Department of Agriculture and Food WA
Host research organisation West Midlands Group
Trial funding source DAFWA
Related program N/A
Acknowledgments

Thanks to the West Midlands Group and Fordham family for the trial site. Appreciation is extended to Mario D'Antuono for statistical analysis and production of the figures. Thanks you to Melanie Kupsch, Anne Smith and DAFWA Research Support Unit for trial management and technical support.


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

Method

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

Badgingarra 2011

Sow date 18 May 2011
Harvest date Not specified
Plot size 1.54m x 20m
Plot replication 3
Fertiliser

At seeding: 100 kg Agstar Extra at seeding of TOS1

 

Herbicide

Pre: Talstar @ 200ml; Dominex @ 100ml; Sprayseed @ 2L; Treflan @ 1.5L

Post: (TOS 1 only) 13/6/11; Ally @ 2.5Gm; Lontrel @ 200ml; Barracuda @ 0.75L

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
Badgingarra, WA Loamy sand
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Badgingarra, WA Chromosol
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 Badgingarra WA
2011 224.8mm
2010 209.6mm
2009 228.5mm
2008 246.8mm
2007 198.9mm
2006 196.0mm
2005 242.6mm
2004 204.2mm
2003 230.9mm
2002 212.7mm
2001 192.5mm
2000 206.7mm
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

Loading

Climate

Badgingarra WA 2011


Observed climate information

Rainfall trial gsr (mm) 433mm

Derived climate information

Badgingarra WA

NOTE: Exact trial site locality unknown - Climate data may not be accurate
Loading
Loading
Loading

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

2011 trial report



Trial last modified: 09-07-2019 09:32am AEST