Management of nutrition after rotary cultivation of a non-wetting soil in the Geraldton Port Zone - Eneabba

2018

Research organisaton
Funding source

Trial details

Researcher(s) Alana Hartley (Liebe), Stephen Davies (DPIRD) and James Easton (CSBP)
Year(s) 2018
Contributor Liebe Group
Trial location(s) Eneabba, WA
Related trials
Management of nutrition after rotary cultivation of a non-wetting soil in the Geraldton Port Zone - Eneabba locations
Aims
  • To determine the impact of N and K supply on yield and quality, on ameliorated non-wetting soils in the Geraldton Port Zone.
  • To determine the most effective way to apply nutrients (granular, banded, top dressed or liquid) on non-wetting soils after amelioration, in the Geraldton Port Zone.
     
Key messages
  • Cultivation will often see improved yields in the first two seasons, particularly on lighter soils.
  • The 2018 season saw 409 mm of growing season rainfall (GSR) resulting in a significant response to nitrogen (N) and a response to a residual high potassium (K) applied in 2017.
  • In soils deficient in K (below 40-50mg/kg) at 0-10 cm, application of higher rates of top dressed K to take advantage of the residual benefits across seasons could be considered.
     
Lead research organisation Liebe Group
Host research organisation N/A
Trial funding source GRDC LIE00010-A
Related program N/A
Acknowledgments

Thank you to the Broun family for hosting this site at their Eneabba property. The Liebe Group would also like to acknowledge the project team, including Stephen Davies (DPIRD) and James Easton (CSBP) who helped design this trial and Andrew Van Burgel (DPIRD) for statistical analysis. Thanks are also extended to the field team at Department of Primary Industries and Regional Development (DPIRD) Geraldton, for implementation, management and harvesting of this trial.
This project has been supported by the GRDC investment LIE00010-A Best bet management for ameliorated non-wetting soils of the Geraldton Port Zone.
Peer review:  Dr Frances Hoyle, University of Western Australia
 


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

Method

Crop type Canola
Treatment type(s)
  • Soil amelioration
Trial type Experimental
Trial design Replicated

Eneabba 2018

Sow rate or Target density 1.8 kg/ha (DG 540 RR canola)
Sow date 18 April 2018
Harvest date Not specified
Plot size 1.54m x 20m
Plot replication 4
Other trial notes

For further information, contact Alana Hartley, Liebe Group
research@liebegroup.org.au
08 9661 0570

Download the trial report to view additional method/treatment information

Download results

Trial results Implemented nutrient treatments for 2018

# Treatment 1
Budding (L/ha) Banded (kg/ha) Rosette (L/ha) P (mg/kg) Banded (L/ha) N (mg/kg) K (mg/kg)
1 Std N No K 85 Agstar Extra 80 Flexi N 12 50 Flexi N 70 0
2 Std N Std K 100 K-Till Extra 80 Flexi N 12 50 Flexi N 70 11
3 Liquid K 85 Agstar Extra 80 Flexi N 12 117 Flexi NK 70 11
4 Std N High K 100 K-Till Extra/28 80 Flexi N 12 50 Flexi N 70 25
5 No N 62 Big Phos/51 MoP 12 50 Flexi N 0 25
6 Low N 100 K-Till Extra/28 12 50 Flexi N 31 25
7 High N 71 Flexi N 100 K-Till Extra/28 80 Flexi N 12 50 Flexi N 100 25
8 High N No K 71 Flexi N 85 Agstar Extra 80 Flexi N 12 50 Flexi N 100 0
9 Residual High K 85 Agstar Extra 80 Flexi N 12 70 0

Trial results Soil test results Treatment 1, Eneabba, 26th March 2018

# Treatment 1
NO3 (mg/kg) Colwell Potassium (mg/kg) MED (unit) Organic carbon (%) Water droplet penetration time (seconds) Electrical conductivity (dS/m) Depth (cm) PBI (unit) Colwell phosphorus (mg/kg) pH CaCl2 (pH) NH4 (mg/kg)
1 Standard N, No K 19 20 0 0.57 6.8 0.072 0-10 7.5 9.5 6.2 1
2 Standard N, No K 11 17 0.69 0.039 10-20 8.6 10 5.9 1
3 Standard N, No K 6 15 0.42 0.022 20-30 8.6 12.5 5.6 1
4 Standard N, No K 24 30-40 4.9
5 Standard N, No K 24 40-50 5

Colwell phosphorus mg/kg


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Electrical conductivity dS/m


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NH4 mg/kg


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NO3 mg/kg


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Organic carbon %


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pH CaCl2 pH


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Water droplet penetration time seconds


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Trial results Soil test results Treatment 9, Eneabba, 26th March 2018

# Treatment 1
NO3 (mg/kg) Colwell Potassium (mg/kg) MED (unit) Organic carbon (%) Water droplet penetration time (seconds) Electrical conductivity (dS/m) Depth (cm) PBI (unit) Colwell phosphorus (mg/kg) pH CaCl2 (pH) NH4 (mg/kg)
1 Residual High K 14 34 0 0.57 6.8 0.072 0-10 7.5 10 6.2 1
2 Residual High K 9 30 0.69 0.039 10-20 8.6 8 6.1 <1
3 Residual High K 3 18 0.42 0.022 20-30 8.6 12 5.4 1
4 Residual High K 19 30-40 4.9
5 Residual High K 25 40-50 5

Colwell phosphorus mg/kg


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Electrical conductivity dS/m


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NH4 mg/kg


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NO3 mg/kg


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Organic carbon %


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pH CaCl2 pH


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Water droplet penetration time seconds


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Trial results Impact of fertiliser management strategy on 2018 Canola yield

# Treatment 1
Grain yield (t/ha) Potassium (kg/ha) Applied nitrogen (kg N/ha)
1 Std N No K 1.06ab 0 70
2 Std N Std K 1.14bc 11 70
3 Liquid K 1.06ab 11 70
4 Std N High K 1.11ab 25 70
5 No N 0.91a 25 0
6 Low N 0.93ab 25 31
7 High N 1.32cd 25 100
8 High N No K 1.32cd 0 100
9 Residual High K 1.36cd Residual 70

Grain yield t/ha


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Applied nitrogen kg N/ha


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Potassium kg/ha


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Trial results Impact of fertiliser management strategy on 2018 Canola oil % (ranked lowest to highest)

# Treatment 1
Oil (%) Potassium (kg/ha) Applied nitrogen (kg N/ha)
1 Std N No K 44.7ab 0 70
2 Std N Std K 45.4abc 11 70
3 Liquid K 44.4a 11 70
4 Std N High K 45.6bc 25 70
5 No N 44.6ab 25 0
6 Low N 44.4a 25 31
7 High N 46.0c 25 100
8 High N No K 45.7bc 0 100
9 Residual High K 44.9abc Residual 70

Applied nitrogen kg N/ha


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Oil %


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Potassium kg/ha


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Trial results Gross margin analysis by treatment

# Treatment 1
Phosphorus (kg/ha) Banded (L/ha) Budding (L/ha) Gross margin ($/ha) Grain yield (t/ha) Applied nitrogen (kg N/ha) Banded (kg/ha) Rosette (L/ha) Oil (%) Gross return ($/ha) Potassium (kg/ha)
1 Std N No K 0 50 Flexi N 416 1.06 70 85 Agstar Extra 80 Flexi N 44.7 574 12
2 Std N Std K 11 50 Flexi N 447 1.14 70 100 K-Till Extra 80 Flexi N 45.4 621 12
3 Liquid K 11 117 Flexi NK 388 1.06 70 85 Agstar Extra 80 Flexi N 44.4 571 12
4 Std N High K 25 50 Flexi N 417 1.11 70 100 K-Till Extra/28 80 Flexi N 45.6 610 12
5 No N 25 50 Flexi N 418 0.91 0 62 Big Phos/51 MoP 44.6 489 12
6 Low N 25 50 Flexi N 367 0.93 31 100 K-Till Extra/28 80 Flexi N 44.4 503 12
7 High N 25 54 Flexi N 71 Flexi N 487 1.32 100 100 K-Till Extra/28 80 Flexi N 46 729 12
8 High N No K 0 54 Flexi N 71 Flexi N 508 1.33 100 85 Agstar Extra 80 Flexi N 45.7 718 12
9 Residual High K Residual 448 1.36 70 85 Agstar Extra 80 Flexi N 44.9 739 12

Grain yield t/ha


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Applied nitrogen kg N/ha


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Gross margin $/ha


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Gross return $/ha


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Oil %


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Phosphorus kg/ha


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Potassium kg/ha


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Observed trial site soil information
Trial site soil testing
Not specified
Soil conditions
Trial site Soil texture
Eneabba, WA Not specified
Derived trial site soil information
Australian Soil Classification Source
Trial site Soil order
Eneabba, WA 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.

Eneabba WA

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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.




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Trial last modified: 24-05-2019 17:27pm AEST