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Australian Government
abare.gov.au
Australian crop report – 15 September 2009
    Overview
      New South Wales
      Victoria
      Queensland
      Western Australia
      South Australia

      Statistical tables
      Download PDF

Australian crop report – 15 September 2009

Overview

Australian wheat growing regions

Australian meteorological districts

Rainfall

The Bureau of Meteorology map of winter rainfall (June to August 2009) illustrates that winter rainfall over the grains belt was mixed (map 1). Most of Western Australia, South Australia and Victoria received average to above average winter rainfall. The majority of southern and central New South Wales also received average rainfall. However, most of northern New South Wales and Queensland received below to very much below average winter rainfall.

MAP 1 – Australian rainfall deciles, 1 June to 31 August 2009

Details of rainfall received in the April to August growing period are provided in table A.

The Australian Bureau of Meteorology, in its latest seasonal rainfall outlook (26 August 2009) for the September to November period, indicates there is a moderate to strong shift in the odds favouring below average spring rainfall across parts of eastern and southern Australia. However, there is an increased chance of above average spring rainfall for south-west Western Australia.

For spring, the chance of exceeding average rainfall is less than 40 per cent across the northern half of Queensland, southern New South Wales west of the Great Divide, much of South Australia and Victoria, and large parts of Tasmania. Chances drop to around 25 per cent in vast areas of the South Australian grains belt. In contrast, the chances of exceeding average spring rainfall are between 60 per cent and 65 per cent throughout south-west Western Australia.

The national outlook for maximum temperatures over spring shows a moderate to strong shift in the odds toward warmer than normal conditions across most of Australia. The chance of average spring maximum temperatures exceeding the long-term average is more than 60 per cent across most of the continent, with 65 per cent chances in northern New South Wales and 70 to 85 per cent across Queensland.

A April - August rainfall in major grain growing regions

average a
2007
2008
2009
2007
2008
2009
mm
mm
mm
mm
% of
average
% of
average
% of
average
Queensland
Central Highlands (35)
145
162
121
107
112
83
74
Maranoa (43)
156
133
106
138
85
68
89
West Darling Downs (42)
162
157
124
177
97
77
109
East Darling Downs (41)
192
181
119
183
94
62
95
Moreton South Coast (40)
333
290
258
384
87
77
115
New South Wales
North West Plains (W) (52)
168
157
123
161
93
73
96
North West Plains (E) (53)
195
191
131
171
98
67
88
North West Slopes (N) (54)
208
221
130
163
106
63
78
North West Slopes (S) (55)
221
262
180
166
119
82
75
Northern Tablelands (N) (56)
239
272
174
274
114
73
115
Central West Plains (S) (50)
185
174
116
168
94
63
91
Central West Plains (N) (51)
175
144
107
183
82
61
105
Central West Slopes (N) (64)
223
255
153
149
114
69
67
Central West Slopes (S) (65)
235
232
157
190
99
67
81
Central Tablelands (N) (62)
234
337
176
170
144
75
73
Central Tablelands (S) (63)
331
346
203
271
104
61
82
Riverina (W) (75)
155
133
98
142
86
63
92
Riverina (E) (74)
208
163
128
170
79
62
82
South West Slopes (N) (73)
259
229
180
234
88
69
90
South West Slopes (S) (72)
386
312
275
377
81
71
98
Southern Tablelands (GM)(70)
255
299
160
203
117
63
80
Victoria
North Mallee (76)
139
154
114
142
111
82
102
South Mallee (77)
163
168
132
175
103
81
107
North Wimmera (78)
198
188
154
216
95
78
109
South Wimmera (79)
257
263
208
292
102
81
113
Lower North (80)
197
166
133
165
84
67
84
Upper North (81)
243
223
177
219
92
73
90
Lower North East (82)
391
359
299
395
92
77
101
Upper North East (83)
546
445
333
395
82
61
72
North Central (88)
354
307
254
275
87
72
78
Central Western (89)
295
305
238
301
103
81
102
South Australia
Upper South East (25B)
224
216
203
237
97
91
106
Murray Mallee (25A)
146
141
130
107
97
89
73
Murray River (24)
160
145
150
159
91
94
99
East Central (23)
339
301
299
347
89
88
102
West Central (22)
252
279
256
339
111
101
134
Lower North (21)
228
173
203
228
76
89
100
Upper North (19)
158
97
121
129
61
77
82
Western (18)
187
117
116
158
63
62
85
Western Australia
North Coast (8)
277
146
231
244
53
83
88
Central Coast (9)
608
430
461
437
71
76
72
Northern Central (10)
232
158
207
199
68
89
86
South Coast (9A)
602
459
478
462
76
79
77
South Central (10A)
271
218
248
204
80
91
75
South East (12)
130
73
75
98
56
58
76
Tasmania
Northern (91)
525
534
436
721
102
83
137
Midlands (93)
229
199
150
380
87
65
166
a Average from 1913 to 2009.

Spring minimum temperatures are also forecast to be warmer than average across most of the country, with the exception of Tasmania and areas east of the Great Divide. The chances of increased minimum temperatures are between 60 per cent and 80 per cent over most of Australia, and more than 80 per cent in parts of Western Australia.

If the seasonal outlook from the Bureau of Meteorology is realised, it is likely to have a negative effect on yields, particularly in the southern and eastern states.

A number of organisations provide forecast yields for grains, including wheat and sorghum. The shire scale wheat forecasting system of the Queensland Department of Primary Industries and Fisheries combines starting soil moisture conditions with the seasonal outlook, including the most recent trend in the Southern Oscillation Index (SOI). The probability of exceeding average wheat yields at the beginning of September (map 2) is close to average in most regions, with the exception of large areas of Queensland, parts of central New South Wales and central Victoria.

MAP 2 – Percentage departure of the forecast median yield for the 2009 season from the long-term average yield, given the SOI phase was ‘consistently near zero’ during July to August

Almost the entire central Queensland and south-west Queensland cropping region show a forecast median yield much below the long-term average (20 to 40 per cent below). Most areas in south-east Queensland have forecast yields similar to the long-term average. In New South Wales, the chances of exceeding long-term average yields is close to average throughout the state, with the exception of parts of north-west New South Wales and the central west, where yields are forecast to be 20 to 40 per cent below average. Throughout Victoria, the chances of exceeding long-term median yields are around average, with the exception of parts of the southern Mallee and central north, where yields are forecast to be 20 to 40 per cent below average. In both South Australia and Western Australia, the chances of exceeding median yields are average throughout the entire winter cropping region.

MAP 3 – Simulated long-term median wheat yields, by shire (1901–2005)

Winter crop production

Winter cropping regions in Western Australia, South Australia and Victoria received average to above average winter rainfall. Conversely, most of Queensland and northern New South Wales received below to very much below average winter rainfall, with August being a particularly dry month across both states. The lack of rainfall, combined with above average temperatures, have resulted in crops in many areas of the two states (including southern and central New South Wales) suffering moisture stress in the critical spring growth phase.

Total winter crop production in 2009-10 is forecast to be around 36 million tonnes (table B). This is an upward revision from ABARE’s June 2009 forecast of 34.8 million tonnes. Dry seasonal conditions have resulted in a downward revision of forecast production for both New South Wales and Queensland. However, this has been more than offset by upward revisions for Victoria, South Australia and Western Australia. The total area sown to winter crops in 2009-10 is estimated to have increased by 2 per cent to slightly more than 22.2 million hectares (table C).

B Winter crop production - Australia a

New South
Wales
Victoria
Queensland
Western
Australia
South
Australia
Australia
Kt
Kt
Kt
Kt
Kt
Kt
1997-98
8 558
3 398
1 637
12 097
5 360
31 116
1998-99
9 718
3 495
2 322
12 232
6 305
34 159
1999-00
11 495
5 139
2 222
13 311
4 751
36 981
2000-01
10 834
6 232
1 340
8 726
7 486
34 696
2001-02
11 171
5 873
1 142
12 050
8 927
39 240
2002-03
3 505
1 955
 836
6 812
4 227
17 402
2003-04
10 768
6 945
1 473
16 683
7 450
43 395
2004-05
10 724
4 203
1 383
12 472
5 849
34 711
2005-06
11 867
6 170
1 426
13 922
7 518
40 985
2006-07
3 837
1 787
 907
8 253
2 792
17 613
2007-08
4 000
4 711
1 195
10 750
4 713
25 433
2008-09  s
9 653
3 081
2 190
13 563
4 599
33 149
2009-10  previous
9 823
5 189
2 104
11 415
6 169
34 771
2009-10  f
9 123
5 549
1 687
12 977
6 549
35 961
% change 2008-09 to 2009-10
-5
80
-23
-4
42
8
a State production includes wheat, barley, oats, canola, lupins, field peas, chickpeas, faba beans and lentils. Australian totals also include triticale, linseed and safflowerseed. f ABARE forecast. s ABARE estimate.
Note: Previous refers to the numbers published in the previous issue of the Australian crop report.

Of the major winter crops, wheat production is forecast to increase by around 6 per cent to 22.7 million tonnes in 2009-10. Barley production in 2009-10 is forecast to be around 7.9 million tonnes, a 16 per cent increase from the previous season. Canola production is forecast at around 1.7 million tonnes in 2009-10, 8 per cent less last seasons harvest, reflecting an expected decline in yields, particularly in Western Australia.

C Winter crop area - Australia a

 
New South
Wales
Victoria
Queensland
Western
Australia
South
Australia
Australia
000 ha
000 ha
000 ha
000 ha
000 ha
000 ha
1997-98
4 543
2 315
1 213
7 141
3 047
18 260
1998-99
4 927
2 454
1 420
7 419
3 376
19 582
1999-00
4 955
2 670
1 337
7 464
3 342
19 763
2000-01
5 398
2 706
1 126
7 390
3 667
20 280
2001-02
5 309
2 684
 788
7 173
3 866
19 817
2002-03
4 782
2 928
 774
7 174
3 965
19 623
2003-04
6 070
3 126
1 039
7 689
4 034
21 982
2004-05
6 456
3 130
 878
7 936
4 018
22 444
2005-06
5 554
2 908
 967
7 390
3 882
20 728
2006-07
5 616
3 054
 792
6 474
4 152
20 117
2007-08
6 315
3 397
 879
7 262
4 142
21 954
2008-09  s
5 946
3 191
1 203
7 406
3 985
21 757
2009-10  previous
6 148
3 114
1 322
7 304
3 970
21 879
2009-10  f
6 120
3 170
1 348
7 528
4 020
22 207
% change 2008-09 to 2009-10
3
-1
12
2
1
2
a State areas include wheat, barley, oats, canola, lupins, field peas, chickpeas, faba beans and lentils. Australian totals also include triticale, linseed and safflower. f ABARE forecast. s ABARE estimate.
Note: Previous refers to the numbers published in the previous issue of the Australian crop report.

Climate variability and crop forecasting

Climate variability is an important factor contributing to changes in Australian crop production, with rainfall variation the main contributor to changes in crop yields from one year to another.

Crop forecasts by ABARE are based on a combination of variables, including discussions with people ‘on the ground’ and using in-house analysts’ professional judgment in assessing the significance of weekly and monthly rainfall data for the principal crop producing regions. A number of organisations provide model-based yield forecasts for grains, including wheat and sorghum, which incorporate climatic information and forecasts provided by the Bureau of Meteorology. For example, the shire scale wheat forecasting system of the Queensland Department of Primary Industries and Fisheries combines starting soil moisture conditions with the seasonal outlook, including the most recent trend in the Southern Oscillation Index (SOI). This information forms part of the base information used by ABARE.

Early in the growing season, ABARE generally uses a 10 year moving average yield as a starting point for crop forecasts in each state. The 10 year average yield takes account of productivity improvements, farmers’ adaptation to changing climatic conditions, and recent trends and variations in rainfall and temperature. ABARE also incorporates three month seasonal outlooks released by the Bureau of Meteorology in its crop production forecasting system. Yield forecasts are formulated by adjusting 10 year averages in accordance with rainfall to date and the climatic (rainfall and temperature) outlooks.

Summer crop production

Total summer crop area is forecast to fall by around 5 per cent to slightly more than 1 million hectares in 2009-10 (table D). Below to very much below average winter rainfall in key growing regions of northern New South Wales and southern Queensland is forecast to result in a decline in the area planted to grain sorghum. Availability of irrigation water remains a critical issue for cotton and rice. Total summer crop production is forecast to fall by 16 per cent to around 2.9 million tonnes in 2009-10, reflecting a forecast decline in grain sorghum production.

Australian cotton plantings in 2009-10 are forecast to increase by 19 per cent in 2009-10, to 195 000 hectares. The increase reflects an improvement in irrigation water availability compared with last year and that irrigated cotton delivers a higher gross margin per megalitre of water used than alternative irrigated summer crops. Cotton lint and cottonseed production in 2009-10 are forecast at 375 000 tonnes and 531 000 tonnes, respectively.

With a continued lack of irrigation water for rice growing, the area planted to rice in 2009-10 is forecast to remain similar to the small area planted in 2008-09, at around 8000 hectares.

At this early stage of the season, the total area planted to grain sorghum is forecast at 662 000 hectares in 2009-10, which is an 8 per cent decline from the area sown last year, reflecting below to very much below average winter rainfall in key growing regions. However, additional plantings are possible in 2009-10 if higher than currently expected rainfall is received between now and the end of the planting window. Assuming average yields, grain sorghum production in 2009-10 is forecast to decline by 20 per cent to 1.9 million tonnes.

D Summer crop plantings and production - Australia a

 
New South Wales
Queensland
Australia
spacer
spacer
spacer
' 000 ha
Kt
' 000 ha
Kt
' 000 ha
Kt
1996-97
 655
2 774
 689
1 485
1 431
4 374
1997-98
 617
2 588
 640
1 139
1 335
3 823
1998-99
 885
3 228
 721
1 712
1 741
5 097
1999-00
 742
2 882
 771
2 031
1 591
5 025
2000-01
 825
3 366
 816
1 786
1 761
5 286
2001-02
 777
3 146
 794
1 772
1 633
4 933
2002-03
 509
1 582
 521
1 199
1 097
2 868
2003-04
 436
1 766
 708
1 806
1 211
3 679
2004-05
 493
1 984
 773
1 788
1 340
3 889
2005-06
 760
2 765
 615
1 512
1 442
4 387
2006-07
 332
1 036
 520
1 079
 912
2 181
2007-08
 378
1 650
 756
2 826
1 205
4 584
2008-09 s
 371
1 380
 672
1 998
1 118
3 487
2009-10 f
 369
1 235
 620
1 618
1 060
2 944
% change 2008-09 to 2009-10
-1
-10
-8
-19
-5
-16
 
a State production includes sorghum, rice, cottonseed, maize and sunflowers. Australian production also includes soybeans, peanuts, mung beans and navy beans. f ABARE forecast. s ABARE estimate.