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Investigating late winter and early spring cereal cropping opportunities for grain growers following autumn waterlogging – South-Western Australia

2022
CC BY 4.0

Research organisation
Funding sources
Stirlings to Coast Farmers
<abbr title='Grains Research and Development Corporation'>GRDC</abbr> Stirlings to Coast Farmers inc.

Trial details

Researcher(s) Dan Fay
Lizzie von Perger
Contact email dan.fay@scfarmers.org.au
Contact phone 08 9842 6653
Year(s) 2022
Contributor Stirlings to Coast Farmers
Trial location(s) Condingup, WA
Green Range, WA
Munglinup, WA
Needilup, WA
Further information View external link
Investigating late winter and early spring cereal cropping opportunities for grain growers following autumn waterlogging – South-Western Australia locations
Aims

This one-year investment aimed to provide growers and advisers along the South Coast of WA with greater confidence to make decisions on whether to sow a cereal crop later in the growing season (late winter, early spring) after crop failure, or inability to seed, due to early season waterlogging. It also aimed to provide some data on what varieties and nitrogen fertiliser strategies might be required for later sown crops.

Key messages

The trials implemented demonstrated that crops can be successfully established in late winter and early spring when conditions are favourable, with barley yields as high as 7 t/ha harvested at the Munglinup trial site with a late-August sowing date. The trial data also showed that main season and shorter season varieties, for the most part, yielded similar to each other. Results relating to nitrogen treatments were variable, most likely due to the ‘all up front’ application and the leaching that occurred due to above-average rainfall received.

Green Range WA 2022 Barley

The trials were each sown in three ‘time of sowing’ blocks with 12 randomised wheat treatments and 18 randomised barley treatments. This totalled 90 small plots at each site.

Lead research organisation Stirlings to Coast Farmers
Host research organisation Stirlings to Coast Farmers
Trial funding source GRDC SCF2208-001SAX
Trial funding source Stirlings to Coast Farmers inc.
Related program Regional Cropping Solutions Network
Acknowledgments

This project received funding support from the Grains Research & Development Corporation. Stirlings to Coast Farmers would like to express its appreciation to South East Premium Wheat Growers Association (SEPWA), Fitzgerald Biosphere Group and trial site hosts.
Other trial partners South East Premium Wheat Growers Association (SEPWA)
Download the trial report to view additional trial information

Method

Crop types Cereal (Grain): Barley Cereal (Grain): Wheat
Treatment type(s)
  • Crop : Type
  • Crop : Nutrition
  • Adverse Effects Management : Waterlogging
  • Fertiliser : Rate
  • Sowing : Timing
Trial type Experimental
Trial design Randomised,Replicated

Condingup 2022 Barley

Sow date Not specified
Harvest date Not specified
Plot size Not specified
Plot replication Not specified
Fertiliser Not specified

Condingup 2022 Wheat

Sow date Not specified
Harvest date Not specified
Plot size Not specified
Plot replication Not specified
Fertiliser Not specified

Green Range 2022 Barley

Sow date Late August, Mid-September, Late September
Harvest date Unknown
Plot size Not specified
Plot replication 3
Fertiliser

Two Nitrogen Treatments - High - 80 units of nitrogen, Low - 40 units of nitrogen

Green Range 2022 Wheat

Sow date Not specified
Harvest date Not specified
Plot size Not specified
Plot replication Not specified
Fertiliser Not specified

Munglinup 2022 Barley

Sow date Not specified
Harvest date Not specified
Plot size Not specified
Plot replication Not specified
Fertiliser Not specified

Munglinup 2022 Wheat

Sow date Not specified
Harvest date Not specified
Plot size Not specified
Plot replication Not specified
Fertiliser Not specified

Needilup 2022 Barley

Sow date Not specified
Harvest date Not specified
Plot size Not specified
Plot replication Not specified
Fertiliser Not specified

Needilup 2022 Wheat

Sow date Not specified
Harvest date Not specified
Plot size Not specified
Plot replication Not specified
Fertiliser Not specified
Download the trial report to view additional method/treatment information

Download results

Trial results Summary Results - Green Range

# Variety
 Treatment 1
Treatment 2
Protein (%) Grain yield (t/ha) Emergence plants (plants/m2)
1 █ Wheat - Vixen █ Late August █ Lower N (40N) 9.27 5.47 172
2 █ Wheat - Vixen █ Late August █ Higher N (80N) 9.63 5.54 168
3 █ Wheat - Scepter █ Late August █ Lower N (40N) 9.6 4.93 131
4 █ Wheat - Scepter █ Late August █ Higher N (80N) 9.37 4.94 148
5 █ Barley - Maximus █ Late August █ Lower N (40N) 11.87 3.13 175
6 █ Barley - Maximus █ Late August █ Higher N (80N) 11.5 4.44 155
7 █ Barley - RGT Planet █ Late August █ Lower N (40N) 9.93 5.58 173
8 █ Barley - RTG Planet █ Late August █ Higher N (80N) 9.6 5.42 152
9 █ Barley - Rosalind █ Late August █ Lower N (40N) 10 4.26 129
10 █ Barley - Rosalind █ Late August █ Higher N (80N) 10.37 5.66 145
11 █ Wheat - Vixen █ Mid September █ Lower N (40N) 9.8 3.73 181
12 █ Wheat - Vixen █ Mid September █ Higher N (80N) 9.63 4.39 179
13 █ Wheat - Scepter █ Mid September █ Lower N (40N) 9.27 3.16 134
14 █ Wheat - Scepter █ Mid September █ Higher N (80N) 9.67 3.92 142
15 █ Barley - Maximus █ Mid September █ Lower N (40N) 11.4 1.86 168
16 █ Barley - Maximus █ Mid September █ Higher N (80N) 11.53 3.5 173
17 █ Barley - RGT Planet █ Mid September █ Lower N (40N) 9.3 4.05 178
18 █ Barley - RTG Planet █ Mid September █ Higher N (80N) 9.83 4.22 183
19 █ Barley - Rosalind █ Mid September █ Lower N (40N) 10.77 2.71 171
20 █ Barley - Rosalind █ Mid September █ Higher N (80N) 10.73 3.68 154
21 █ Wheat - Vixen █ Late September █ Lower N (40N) 9.9 2.8 165
22 █ Wheat - Vixen █ Late September █ Higher N (80N) 10.07 3.32 156
23 █ Wheat - Scepter █ Late September █ Lower N (40N) 9.57 2.76 162
24 █ Wheat - Scepter █ Late September █ Higher N (80N) 10.2 2.75 130
25 █ Barley - Maximus █ Late September █ Lower N (40N) 11 1.73 163
26 █ Barley - Maximus █ Late September █ Higher N (80N) 11 2.15 167
27 █ Barley - RGT Planet █ Late September █ Lower N (40N) 10.33 2.14 173
28 █ Barley - RTG Planet █ Late September █ Higher N (80N) 10.3 2.68 176
29 █ Barley - Rosalind █ Late September █ Lower N (40N) 9.73 2.88 162
30 █ Barley - Rosalind █ Late September █ Higher N (80N) 11.13 1.14 162

Grain yield t/ha

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Emergence plants plants/m2

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Protein %

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Trial results Summary Results - Needilup

# Variety
 Treatment 1
Treatment 2
Protein (%) Grain yield (t/ha) Emergence plants (plants/m2)
1 █ Wheat - Vixen █ Late August █ Lower N (40N) 10.33 2.79 137
2 █ Wheat - Vixen █ Late August █ Higher N (80N) 11.93 2.86 145
3 █ Wheat - Scepter █ Late August █ Lower N (40N) 10.87 2.91 144
4 █ Wheat - Scepter █ Late August █ Higher N (80N) 10.93 2.87 128
5 █ Barley - Maximus █ Late August █ Lower N (40N) 10.57 2.67 130
6 █ Barley - Maximus █ Late August █ Higher N (80N) 10.97 2.67 139
7 █ Barley - RGT Planet █ Late August █ Lower N (40N) 9.93 2.55 136
8 █ Barley - RGT Planet █ Late August █ Higher N (80N) 12.83 2.52 127
9 █ Barley - Rosalind █ Late August █ Lower N (40N) 11.03 2.59 116
10 █ Barley - Rosalind █ Late August █ Higher N (80N) 11.83 3 136
11 █ Wheat - Vixen █ Mid September █ Lower N (40N) 11.93 2.69 175
12 █ Wheat - Vixen █ Mid September █ Higher N (80N) 10.87 2.91 175
13 █ Wheat - Scepter █ Mid September █ Lower N (40N) 10.93 2.64 164
14 █ Wheat - Scepter █ Mid September █ Higher N (80N) 10.33 2.77 167
15 █ Barley - Maximus █ Mid September █ Lower N (40N) 11.03 2.69 191
16 █ Barley - Maximus █ Mid September █ Higher N (80N) 10.57 2.47 182
17 █ Barley - RGT Planet █ Mid September █ Lower N (40N) 11.8 2.55 179
18 █ Barley - RTG Planet █ Mid September █ Higher N (80N) 12.03 2.58 197
19 █ Barley - Rosalind █ Mid September █ Lower N (40N) 10.37 2.57 175
20 █ Barley - Rosalind █ Mid September █ Higher N (80N) 11.37 2.98 185
21 █ Wheat - Vixen █ Late September █ Lower N (40N) 12.2 2.22 139
22 █ Wheat - Vixen █ Late September █ Higher N (80N) 12.07 2.07 126
23 █ Wheat - Scepter █ Late September █ Lower N (40N) 12.2 2.11 144
24 █ Wheat - Scepter █ Late September █ Higher N (80N) 11.6 2.15 164
25 █ Barley - Maximus █ Late September █ Lower N (40N) 11.03 2.01 129
26 █ Barley - Maximus █ Late September █ Higher N (80N) 11.3 2.14 131
27 █ Barley - RGT Planet █ Late September █ Lower N (40N) 10.8 2.15 137
28 █ Barley - RTG Planet █ Late September █ Higher N (80N) 10.1 2.43 159
29 █ Barley - Rosalind █ Late September █ Lower N (40N) 10.37 2.17 149
30 █ Barley - Rosalind █ Late September █ Higher N (80N) 11.63 2.13 140

Grain yield t/ha

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Emergence plants plants/m2

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Protein %

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Trial results Summary Results - Condingup

# Variety
 Treatment 1
Treatment 2
Protein (%) Grain yield (t/ha) Emergence plants (plants/m2)
1 █ Wheat - Vixen █ Late August █ Lower N (40N) 11.9 5.36 101
2 █ Wheat - Vixen █ Late August █ Higher N (80N) 11.23 5.37 111
3 █ Wheat - Scepter █ Late August █ Lower N (40N) 11.5 4.91 104
4 █ Wheat - Scepter █ Late August █ Higher N (80N) 11.23 5.18 119
5 █ Barley - Maximus █ Late August █ Lower N (40N) 13.65 8.037 122
6 █ Barley - Maximus █ Late August █ Higher N (80N) 13.05 7.39 157
7 █ Barley - RGT Planet █ Late August █ Lower N (40N) 10.7 5.192 128
8 █ Barley - RTG Planet █ Late August █ Higher N (80N) 10.23 5.366 114
9 █ Barley - Rosalind █ Late August █ Lower N (40N) 11.267 7.844 148
10 █ Barley - Rosalind █ Late August █ Higher N (80N) 11.233 8.285 138
11 █ Wheat - Vixen █ Mid September █ Lower N (40N) 9.9 5.85 99
12 █ Wheat - Vixen █ Mid September █ Higher N (80N) 11.4 5.36 113
13 █ Wheat - Scepter █ Mid September █ Lower N (40N) 9.83 5.93 106
14 █ Wheat - Scepter █ Mid September █ Higher N (80N) 10.97 5.46 103
15 █ Barley - Maximus █ Mid September █ Lower N (40N) 11.933 5.587 122
16 █ Barley - Maximus █ Mid September █ Higher N (80N) 12.6 5.796 114
17 █ Barley - RGT Planet █ Mid September █ Lower N (40N) 10.73 3.47 104
18 █ Barley - RTG Planet █ Mid September █ Higher N (80N) 10.5 4.495 101
19 █ Barley - Rosalind █ Mid September █ Lower N (40N) 10.83 6.714 110
20 █ Barley - Rosalind █ Mid September █ Higher N (80N) 11.63 6.854 111
21 █ Wheat - Vixen █ Late September █ Lower N (40N) 10.13 4.83 105
22 █ Wheat - Vixen █ Late September █ Higher N (80N) 11.27 4.36 104
23 █ Wheat - Scepter █ Late September █ Lower N (40N) 9.87 4.95 104
24 █ Wheat - Scepter █ Late September █ Higher N (80N) 10.27 4.66 99
25 █ Barley - Maximus █ Late September █ Lower N (40N) 11.7 3.372 126
26 █ Barley - Maximus █ Late September █ Higher N (80N) 12.3 4.089 121
27 █ Barley - RGT Planet █ Late September █ Lower N (40N) 9.7 4.262 114
28 █ Barley - RTG Planet █ Late September █ Higher N (80N) 9.8 4.996 118
29 █ Barley - Rosalind █ Late September █ Lower N (40N) 10.2 4.97 116
30 █ Barley - Rosalind █ Late September █ Higher N (80N) 9.967 5.555 119

Grain yield t/ha

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Emergence plants plants/m2

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Protein %

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Trial results Summary Results - Munglinup

# Variety
 Treatment 1
Treatment 2
Protein (%) Grain yield (t/ha) Emergence plants (plants/m2)
1 █ Wheat - Vixen █ Late August █ Lower N (40N) 11.1 6.01 98
2 █ Wheat - Vixen █ Late August █ Higher N (80N) 11.4 5.99 98
3 █ Wheat - Scepter █ Late August █ Lower N (40N) 10.63 5.95 91
4 █ Wheat - Scepter █ Late August █ Higher N (80N) 11 6.02 100
5 █ Barley - Maximus █ Late August █ Lower N (40N) 12.33 6.471 91
6 █ Barley - Maximus █ Late August █ Higher N (80N) 13.4 7.251 98
7 █ Barley - RGT Planet █ Late August █ Lower N (40N) 11.87 6.413 88
8 █ Barley - RGT Planet █ Late August █ Higher N (80N) 12.7 5.554 85
9 █ Barley - Rosalind █ Late August █ Lower N (40N) 11.73 7.12 100
10 █ Barley - Rosalind █ Late August █ Higher N (80N) 12.43 6.885 104
11 █ Wheat - Vixen █ Mid September █ Lower N (40N) 12.07 4.15 86
12 █ Wheat - Vixen █ Mid September █ Higher N (80N) 11.64 3.85 87
13 █ Wheat - Scepter █ Mid September █ Lower N (40N) 11.87 3.77 96
14 █ Wheat - Scepter █ Mid September █ Higher N (80N) 11.57 3.77 94
15 █ Barley - Maximus █ Mid September █ Lower N (40N) 13.4 5.456 109
16 █ Barley - Maximus █ Mid September █ Higher N (80N) 12.47 5.14 94
17 █ Barley - RGT Planet █ Mid September █ Lower N (40N) 13 3.932 88
18 █ Barley - RTG Planet █ Mid September █ Higher N (80N) 12.133 4.363 100
19 █ Barley - Rosalind █ Mid September █ Lower N (40N) 13.367 4.963 102
20 █ Barley - Rosalind █ Mid September █ Higher N (80N) 11.967 5.083 106
21 █ Wheat - Vixen █ Late September █ Lower N (40N) 11.07 2.52 96
22 █ Wheat - Vixen █ Late September █ Higher N (80N) 11.2 2.62 108
23 █ Wheat - Scepter █ Late September █ Lower N (40N) 10.67 1.37 104
24 █ Wheat - Scepter █ Late September █ Higher N (80N) 11.37 1.69 105
25 █ Barley - Maximus █ Late September █ Lower N (40N) 11.633 4.077 129
26 █ Barley - Maximus █ Late September █ Higher N (80N) 12 3.797 127
27 █ Barley - RGT Planet █ Late September █ Lower N (40N) 11.67 2.835 108
28 █ Barley - RTG Planet █ Late September █ Higher N (80N) 12.6 2.468 119
29 █ Barley - Rosalind █ Late September █ Lower N (40N) 11.267 3.906 134
30 █ Barley - Rosalind █ Late September █ Higher N (80N) 12.033 3.61 136

Grain yield t/ha

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Emergence plants plants/m2

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Protein %

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Climate

Green Range WA 2022

Observed climate information

Rainfall trial gsr (mm) 179.5mm

Derived climate information

Condingup WA

Green Range WA

Munglinup WA

Needilup WA

Condingup WA

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Green Range WA

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Munglinup WA

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Needilup 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.

Trial report and links

Final Technical Report



Trial last modified: 09-02-2026 15:13pm AEST