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Managing crop growth and water use

2012
CC BY 4.0

Research organisation
Funding source
Hart Field Site Group
<abbr title='Grains Research and Development Corporation'>GRDC</abbr>

Trial details

Researcher(s) Glenn McDonald (University of Adelaide)
Victor Sadras (SARDI)
Year(s) 2012
Contributor Hart Field Site Group
Trial location(s) Hart, SA
Managing crop growth and water use locations
Aims

To manage the crop canopy and conserve the stored soil moisture so that it might be saved for grain-fill, rather than being used to create early crop growth.

Key messages
  • The highest yielding treatments were the early high nitrogen rate (2.80t/ha) or the high nitrogen rate (2.91t/ha).
  • Treatments imposed to manipulate crop growth were unable to save more soil moisture for grain fill
Lead research organisation Hart Field Site Group
Host research organisation Hart Field Site Group
Trial funding source GRDC
Related program N/A
Acknowledgments

This trial is funded by the GRDC and conducted in collaboration with Victor Sadras, SARDI, and Glenn McDonald from the University of Adelaide. 
Other trial partners SARDI and the University of Adelaide
Download the trial report to view additional trial information

Method

Crop type Cereal (Grain): Wheat
Treatment type(s)
  • Crop : Variety
  • Fertiliser : Rate
  • Fertiliser : Timing
  • Growth regulator : Type
  • Sowing : Rate
  • Sowing : Row Spacing
Trial type Experimental
Trial design Randomised,Replicated,Blocked

Hart 2012

Sow rate or Target density Gladius wheat @ 100kg/ha
Sow date 30 May 2012
Harvest date Not specified
Plot size 1.4m x 10m
Plot replication 3
Fertiliser

DAP + Zn 2% @ 80kg/ha
Download the trial report to view additional method/treatment information

Download results

Trial results Table 1

# Treatment 1
Protein (%) Screenings (%) Grain yield (t/ha) Test weight (kg/hL)
1 █ Early variety - Axe 13.1 0.4 2.39 78.7
2 █ Mid variety - Mace 11 0.7 2.77 79.4
3 █ Late variety - Puglsey 12.7 0.6 2.37 79.3
4 █ Reduced seed rate 10.9 0.7 2.62 80.1
5 █ Narrow row spacing 12.1 0.9 2.76 79
6 █ Growth regulant at GS30 11.1 0.6 2.58 79.4
7 █ Early high N 12.1 0.8 2.8 79.8
8 █ Split N 11.7 0.7 2.65 79.4
9 █ Late high N 10.9 0.6 2.72 79.7
10 █ High N rate 11.8 0.7 2.91 79.3

Grain yield t/ha

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Protein %

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Screenings %

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Test weight kg/hL

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Observed trial site soil information
Trial site soil testing
Not specified
Soil conditions
Trial site Soil texture
Hart, SA Calcarosol
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Hart, SA 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 Hart SA
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Climate

Hart SA 2012

Observed climate information

Rainfall trial gsr (mm) 168mm

Derived climate information

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 report and links

2012 trial report



Trial last modified: 08-06-2018 14:02pm AEST