Wheat yield and its components in response to early sowing and nitrogen fertiliser rate

2015

Research organisatons
Funding source

Trial details

Researcher(s) Marianne Hoogmoed, Victor Sadras, Rob Wheeler (SARDI), Sarah Noack, Peter Hooper (Hart), Barry Mudge (Barry Mudge Consulting)
Year(s) 2015
Contributor Hart Field Site Group
Trial location(s) Site 5, Hart, SA
Wheat yield and its components in response to early sowing and nitrogen fertiliser rate locations
Aims

This trial is apart of a three year GRDC project to develop a benchmark to be used to accurately determine crops' N status.

The aim of this years trial is to determine how a crops’ N status changes in relation to early sowing and variety.

Key messages
  • Early sowing increased grain yields in all of the wheat varieties trialed, however, the size of the increase was dependent on the variety.
  • Nitrogen application increased grain yield in the early sown treatments and increased grain protein especially in late sown crops.
Lead research organisation South Australian Research and Development Institute
Host research organisation Hart Field Site Group
Trial funding source GRDC DAS00147
Related program N/A
Acknowledgments

The authors thank GRDC for project funding (project DAS00147) and Hart staff for managing the trial.


Other trial partners Hart Field Site Group and Barry Mudge Consulting
Download the trial report to view additional trial information

Method

Crop type Wheat
Treatment type(s)
  • Fertiliser
  • Fertiliser: Rate
  • Sowing
  • Sowing: Timing
  • Variety
  • Variety: Type
Trial type Experimental
Trial design Randomised,Replicated,Blocked

Hart 2015

Sow rate or Target density 210 plants/m2 Mace, Axe, Scout, Trojan, Spitfire and Cobra
Sow date 30 April 2015
Harvest date Not specified
Plot size 1.75m x 10m
Plot replication 3
Fertiliser
  • 0 kg N/ha
  • 60 kg N/ha split between seeding and beginning of tillering (GS20)
Download the trial report to view additional method/treatment information

Download results

Trial results Table 1

@T1: Early sowing (30-04-2015) @T2: Late sowing (26-05-2015)
# Variety
Treatment 1
Anthesis biomass (t/ha) Screenings (%) 1000 grain weight (g) Anthesis biomass (t/ha) Screenings (%) 1000 grain weight (g)
1 Axe 0 kg N/ha 4.34 0.2 38.49 3.42 0.33 36.66
1 Axe 0 kg N/ha 4.47 0.18 40.77 4.05 0.91 31.77
2 Cobra 0 kg N/ha 4.61 0.11 42.49 4.19 3.37 34.28
2 Cobra 0 kg N/ha 4 0.1 41.71 4.95 10.29 33.84
3 Mace 0 kg N/ha 3.11 0.17 43.97 3.51 3.91 36.69
3 Mace 0 kg N/ha 4.58 0.06 42.89 3.51 0.31 36.49
4 Scout 60 kg N/ha 5.28 0.44 37.34 4.84 4.92 28.81
4 Scout 60 kg N/ha 5.06 0.52 36.99 5.5 13.82 25.69
5 Spitfire 60 kg N/ha 4.96 0.28 40.9 5.52 24.3 28.11
5 Spitfire 60 kg N/ha 5.25 0.2 39.77 5.75 19.74 26.74
6 Trojan 60 kg N/ha 4.89 0.66 41.36 4.38 17.51 30.65
6 Trojan 60 kg N/ha 5.48 0.77 37.79 5.76 14.76 29.1
7 Axe
7 Axe
8 Cobra
8 Cobra
9 Mace
9 Mace
10 Scout
10 Scout
11 Spitfire
11 Spitfire
12 Trojan
12 Trojan

1000 grain weight g


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Anthesis biomass t/ha


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Screenings %


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Observed trial site soil information
Trial site soil testing
Not specified
Soil conditions
Trial site Soil texture
Site 5, Hart, SA Not specified
Derived trial site soil information
Australian Soil Classification Source
Trial site Soil order
Site 5, Hart, SA Chromosol
National soil grid Source
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.

Site 5, Hart SA

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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 last modified: 11-06-2019 11:55am AEST