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Effect of fertiliser sown with wheat seed on Mallee soils

2016

Research organisation
Funding sources
CSIRO - Agriculture and Food
<abbr title='Grains Research and Development Corporation'>GRDC</abbr> <abbr title='Commonwealth Scientific and Industrial Research Organisation'>CSIRO</abbr>

Trial details

Researcher(s) Bill Davoren (CSIRO)
Rick Llewellyn (CSIRO)
Therese McBeath (CSIRO)
Willie Shoobridge (CSIRO)
Year(s) 2016
Contributor CSIRO - Agriculture and Food
Trial location(s) Karoonda, SA
Effect of fertiliser sown with wheat seed on Mallee soils locations
Aims

To test the effect of DAP with wheat seed on establishment and to measure whether a difference in establishment was yield limiting.

Key messages
  • Just 50 kg DAP/ha knife point drilled with 70 kg/ha wheat seed is enough to reduce wheat plant establishment
  • Wheat fertilised with DAP with seed yielded 0.5 t/ha (20%) less than wheat with DAP placed below seed in 2016. 
  • The addition of 35 kg urea/ha below the seed overcame the yield penalty in the DAP-with-seed plots, suggesting access to N was a driver.
Lead research organisation CSIRO - Agriculture and Food
Host research organisation N/A
Trial funding source GRDC MSF00003
Trial funding source CSIRO
Related program N/A
Acknowledgments

We thank the Loller family for hosting the field site and input from Jeff Braun is gratefully acknowledged. This research is funded by GRDC and CSIRO Agriculture and Food in partnership with Mallee Sustainable Farming (MSF00003).
Other trial partners Not specified
Download the trial report to view additional trial information

Method

Crop type Cereal (Grain): Wheat
Treatment type(s)
  • Fertiliser : Application Method
Trial type Experimental
Trial design Unknown

Karoonda 2016

Sowing machinery

The trial was established using knife points and a dual shoot system
Sow date 2 June 2016
Harvest date Not specified
Plot size Not specified
Plot replication Not specified
Fertiliser

All plots received a pre-sowing application of 33 kg/ha of potassium sulfate to eliminate K and S as confounding issues with an in-crop foliar application of Zn, Cu and Mn.

Fertiliser placed below the seed was approximately 5cm below seeding depth.
Herbicide

1.5 L/ha of trifluralin pre-sowing
Download the trial report to view additional method/treatment information

Download results

Trial results Table 1

# Treatment 1
Establishment plants (plants/m2) Grain yield (t/ha) GS31 Biomass (t/ha)
1 █ Nil fertiliser with seed + 50 kg DAP/ha fertiliser deep 117 3.94 1.26
2 █ 50 kg DAP/ha fertiliser with seed + 35 kg Urea/ha fertiliser deep 92 4.16 1.33
3 █ 50 kg DAP/ha fertiliser with seed + Nil fertiliser deep 97 3.44 1.02

Grain yield t/ha

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Establishment plants plants/m2

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GS31 Biomass t/ha

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Observed trial site soil information
Trial site soil testing
Not specified
Soil conditions
Trial site Soil texture
Karoonda, SA Not specified
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Karoonda, SA 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 Karoonda SA
2016
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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.

Karoonda 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

2016 trial report



Trial last modified: 14-05-2023 08:11am AEST