Assessing the impact of deep ripping and spading across three soil types near Quairading, Western Australia

2017

Research organisaton
Funding source

Trial details

Researcher(s) Tim Boyes (agVivo) and Joel Andrew (Map IQ)
Year(s) 2017
Contributor agVivo
Trial location(s) Quairading, WA
Assessing the impact of deep ripping and spading across three soil types near Quairading, Western Australia locations
Aims

To assess the impact of deep ripping and spading on crop yield across three different soil types near Quairading, WA.

Key messages
  • Deep ripping and spading increased yield between 68% and 107% at this site.
  • Combining deep ripping and spading can ameliorate multiple soil constraints.
  • Leaving untreated control strips can be used to quantify the yield differences of the treatment.
Lead research organisation agVivo
Host research organisation N/A
Trial funding source GRDC AVP00003
Related program N/A
Acknowledgments

The research undertaken as part of this project is made possible by the significant contributions of the grower and Tim Boyes who setup the demonstration sites. This assessment of the trial and report is funded by the GRDC through the Albany Region Cropping Solution Network.

GRDC Project Number: AVP00003-A


Other trial partners Map IQ
Download the trial report to view additional trial information

Method

Crop type Cereal: Wheat
Treatment type(s)
  • Soil
  • Soil: Preparation
Trial type Demonstration
Trial design Unknown
Sow rate or Target density Not specified
Sowing machinery Not specified
Plot size Not specified
Plot replication Not specified
Plot blocking Not specified
Plot randomisation Not specified
Paddock history Not specified
Fertiliser Not specified
Herbicide Not specified
Insecticide Not specified
Fungicide Not specified
Pesticide Not specified
Soil amelioration Not specified
Seed treatment Not specified
Inoculant Not specified
Tillage Not specified
Other trial notes Not specified
Download the trial report to view additional method/treatment information

Trial results Table 1: Grain Yield x Soil Type x Treatment

# Treatment 1
Treatment 2
Grain yield (t/ha)
1 Deep White Sand Rip + Spade 1.107
2 Deep White Sand Control 0.656
3 Deep Yellow Sand Rip + Spade 2.214
4 Deep Yellow Sand Control 1.066
5 Sand Gravel Duplex Rip + Spade 2.337
6 Sand Gravel Duplex Control 1.23

Grain yield t/ha


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Trial results Table 2: Average soil strength measurements from ripped and control plots as recorded by a cone penetrometer in August 2017.

# Treatment 1
Soil strength (kPa) Soil loosening depth (cm)
1 Control 988 -5
2 Control 1257 -10
3 Control 1828 -15
4 Control 2593 -20
5 Control 3319 -25
6 Control 4048 -30
7 Control 4027 -35
8 Control 3655 -40
9 Control 3266 -45
10 Control 2928 -50
11 Control 2628 -55
12 Control 2417 -60
13 Control 2269 -65
14 Control 2198 -70
15 Rip + Spade 160 -5
16 Rip + Spade 639 -10
17 Rip + Spade 824 -15
18 Rip + Spade 953 -20
19 Rip + Spade 1164 -25
20 Rip + Spade 1510 -30
21 Rip + Spade 1746 -35
22 Rip + Spade 1890 -40
23 Rip + Spade 1874 -45
24 Rip + Spade 1978 -50
25 Rip + Spade 2452 -55
26 Rip + Spade 2467 -60
27 Rip + Spade 2370 -65
28 Rip + Spade 2449 -70
29 Barrier 2500 -5
30 Barrier 2500 -10
31 Barrier 2500 -15
32 Barrier 2500 -20
33 Barrier 2500 -25
34 Barrier 2500 -30
35 Barrier 2500 -35
36 Barrier 2500 -40
37 Barrier 2500 -45
38 Barrier 2500 -50
39 Barrier 2500 -55
40 Barrier 2500 -60
41 Barrier 2500 -65
42 Barrier 2500 -70


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

Quairading WA 2017


Derived climate information
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BOM Data source QUAIRADING [2289] 1km proximity to trial site location


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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.