Stubble type effect on soil nutrition

2016

Research organisation
Funding source

Trial details

Researcher(s) Claire Browne (BCG)
Year(s) 2016
Contributor Birchip Cropping Group
Trial location(s) Kalkee, VIC
Further information View external link
Stubble type effect on soil nutrition locations
Aims

To determine the effect of stubble type (wheat, peas and canola) and load (from Decile 2, 5 and 8
seasons) on subsequent soil and crop nutrition.

Key messages
  • In 2016, a Decile 10 season, stubble load had no effect on soil mineral nitrogen or soil water.
  • The presence of stubble resulted in higher soil mineral nitrogen over the summer fallow period.
  • Wheat yields were higher following peas or fallow than they were after wheat or canola in 2016.
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 profitability in retained stubble systems’ project (BWD00024).


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

Method

Crop type Cereal (Grain): Wheat
Treatment type(s)
  • Stubble : Management
Trial type Experimental
Trial design Replicated

Kalkee 2016

Sow rate or Target density 140 plants/m²
Sowing machinery

Knife point press wheels, 30cm row spacing

Sow date 24 May 2016
Harvest date 21 December 2016
Plot size Not specified
Plot replication Not specified
Paddock history 2014 wheat, 2015 wheat, peas, canola and fallow
Fertiliser

Granulock Supreme Z + Impact® @ 50kg/ha at sowing
19 July 25kg/ha of urea applied at GS13

Herbicide

24 May Triflur X® @ 1.5L/ha + Sakura® @ 118g/ha + Roundup PowerMAX® @ 2L/ha
7 July Lontrel® @ 100mL/ha + MCPA LVE @ 350mL/ha + Velocity® @ 670mL/ha + UptakeTM @ 0.5%
9 September Paradigm® @ 25g/ha + MCPA LVE @ 600mL/ha + Uptake @ 0.5%

Insecticide

9 September Fastac® @250mL/ha + Lorsban® @200mL/ha + BS 1000 @ 0.25%

Fungicide

27 September Prosaro® @ 300mL/ha + BS 1000 @ 0.25%
10 October Prosaro @ 300mL/ha + BS 1000 @ 0.25%

Seed treatment Raxil®
Download the trial report to view additional method/treatment information

Download results

Trial results Table 1

@T1: @T2:
# Treatment 1
Biomass (t/ha) Biomass (t/ha)
1 █ Canola low 6.7 12.9
1 █ Canola mid 7.2 11.2
2 █ Canola high 5.8 12.5
2 █ Fallow 7.1 13.4
3 █ Peas low 7.5 13.5
3 █ Peas mid 7.6 13.1
4 █ Peas high 8.6 13.6
4 █ Wheat low 5.7 10.6
5 █ Wheat mid 5.7 11.4
5 █ Wheat high 5.7 9.9
6 █
6 █
7 █
7 █
8 █
8 █
9 █
9 █
10 █
10 █

Biomass t/ha


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Observed trial site soil information
Trial site soil testing
Site Depth Type pH EC P K N A OC CAT
Kalkee, VIC 0 - 10cm 31.00 1.00
Kalkee, VIC 0 - 70cm
Soil conditions
Trial site Soil texture
Kalkee, VIC Clay
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Kalkee, VIC Vertosol
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 Kalkee VIC
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Climate

Kalkee VIC 2016


Observed climate information

Rainfall trial total (mm) 462mm
Rainfall trial gsr (mm) 374mm

Derived climate information

Kalkee VIC

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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