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

2018
CC BY 4.0

Research organisaton
Funding source

Trial details

Researcher(s) Stephen Davies (DPIRD)
James Easton (CSBP)
Alana Hartley (Liebe)
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 Oilseed: Canola
Treatment type(s)
  • Soil Improvement
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 Unknown
Plot size 1.54m x 20m
Plot replication 4
Download the trial report to view additional method/treatment information

Download results

Trial results Implemented nutrient treatments for 2018

# Treatment 1
Banded (kg/ha) Rosette (L/ha) P (mg/kg) Budding (L/ha) 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 100 K-Till Extra/28 80 Flexi N 12 71 Flexi N 50 Flexi N 100 25
8 High N No K 85 Agstar Extra 80 Flexi N 12 71 Flexi N 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
MED (unit) Organic carbon (%) Water droplet penetration time (seconds) Electrical conductivity (dS/m) NO3 (mg/kg) Colwell Potassium (mg/kg) PBI (unit) Colwell phosphorus (mg/kg) pH CaCl2 (pH) NH4 (mg/kg) Depth (cm)
1 Standard N, No K 0 0.57 6.8 0.072 19 20 7.5 9.5 6.2 1 0-10
2 Standard N, No K 0.69 0.039 11 17 8.6 10 5.9 1 10-20
3 Standard N, No K 0.42 0.022 6 15 8.6 12.5 5.6 1 20-30
4 Standard N, No K 24 4.9 30-40
5 Standard N, No K 24 5 40-50

Colwell phosphorus mg/kg


Loading

Electrical conductivity dS/m


Loading

NH4 mg/kg


Loading

NO3 mg/kg


Loading

Organic carbon %


Loading

pH CaCl2 pH


Loading

Water droplet penetration time seconds


Loading

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

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

Colwell phosphorus mg/kg


Loading

Electrical conductivity dS/m


Loading

NH4 mg/kg


Loading

NO3 mg/kg


Loading

Organic carbon %


Loading

pH CaCl2 pH


Loading

Water droplet penetration time seconds


Loading

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


Loading

Applied nitrogen kg N/ha


Loading

Potassium kg/ha


Loading

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


Loading

Oil %


Loading

Potassium kg/ha


Loading

Trial results Gross margin analysis by treatment

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

Grain yield t/ha


Loading

Applied nitrogen kg N/ha


Loading

Gross margin $/ha


Loading

Gross return $/ha


Loading

Oil %


Loading

Phosphorus kg/ha


Loading

Potassium kg/ha


Loading
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: ASRIS
Trial site Soil order
Eneabba, WA 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 Eneabba WA
2018 213.2mm
2017 194.8mm
2016 220.8mm
2015 230.1mm
2014 211.2mm
2013 248.6mm
2012 221.4mm
2011 218.2mm
2010 209.1mm
2009 215.6mm
2008 238.8mm
2007 186.2mm
2006 180.8mm
2005 217.2mm
2004 217.0mm
2003 224.9mm
2002 194.6mm
2001 191.5mm
2000 203.7mm
National soil grid Source: CSIRO/TERN
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

Loading

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

Loading
Loading
Loading

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: 21-12-2022 11:29am AEST