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EXPLANATORY NOTES

INTRODUCTION

1 This publication contains preliminary estimates from a selection of data items collected in the 2016-17 Rural Environment and Agricultural Commodities Survey (REACS). Included are statistics on broadacre crop area and production and livestock numbers at the national and state/territory level.

2 Estimates for rice, cotton, sugar cane, and pigs on holding have not been included in this preliminary release, but will be available when final estimates are released in mid-2018.

3 The REACS is conducted annually in the years between the five-yearly Agricultural Census.

4 The majority of estimates in this publication were compiled from information obtained from the REACS for the financial year ended 30 June 2017. Administrative data from non-Australian Bureau of Statistics (ABS) sources is also used to supplement reported data. A copy of the 2016-17 REACS form can be found under the Downloads tab of this publication.

5 Estimates in this publication are preliminary and may be subject to revision. The full range of final estimates from the 2016-17 REACS will be progressively published in Agricultural Commodities, Australia, 2016-17 (cat. no. 7121.0), Water Use on Australian Farms, Australia (cat. no. 4618.0) and Land Management and Farming in Australia (cat. no. 4627.0) beginning in mid-2018.


SCOPE AND COVERAGE

6 For the purposes of REACS a business (statistical unit) is identified as undertaking agricultural activity if any of the primary or secondary productive activities of that business fall within the Agriculture Subdivision (Subdivision 01) as defined by the 2006 edition of the Australian and New Zealand Standard Industrial Classification (ANZSIC). For more information, please refer to Australian and New Zealand Standard Industrial Classification (ANZSIC), 2006 (cat. no. 1292.0).

7 The Australian Bureau of Statistics’ Business Register (ABSBR) is based on the Australian Business Register (ABR). Most businesses and organisations in Australia are required to obtain an Australian Business Number (ABN) from the Australian Taxation Office (ATO) for their business operations. The ABR stores details about businesses and organisations when they register for an ABN.

8 The scope of the 2016-17 REACS was all businesses undertaking agricultural activity recorded on the ABS Business Register (ABSBR) above a minimum threshold applied to the estimated value of their agricultural operations.

9 Estimated Value of Agricultural Operations (EVAO) was used to determine whether an agricultural business operation was in-scope for the 2016-17 REACS. EVAO is an ABS construct used to estimate the relative size of agricultural activity undertaken by a business. Three-year average weighted prices are applied to livestock sales and livestock numbers on the farm, and to area and production data for crops. The resultant aggregation of these commodity values is the EVAO. It is not an indicator of the value of receipts of individual farms (turnover) but rather an indicator of the size or extent of agricultural activity. A three year average weight price is used to minimise the effects of both large movements in commodity prices and seasonal conditions which may otherwise unduly influence a business’ EVAO. For businesses with no previously reported agricultural activity a derived value of operations based on turnover reported in its Businesses Activity Statement (BAS) is used as a proxy.

10 The scope for the 2016-17 REACS was all agricultural businesses with an EVAO of $40,000 or greater. This is a change from previous ABS REACS collections, where a scope of EVAO of $5,000 or greater was used, and is a continuation of the scope used in the 2015-16 Agricultural Census.

11 As a result of the change in scope, the estimates from the 2016-17 REACS will not be directly comparable to previously published REACS outputs. To address this, estimates have been produced for a number of rural environment and agricultural commodity collections from 2010-11 to 2014-15 using an EVAO of $40,000 or greater. These estimates are now available at the national, state/territory levels and substate levels on the ABS website.

12 The 2016-17 REACS preliminary estimates are based on an achieved response rate of 77.8% from a sample of 30,466 agricultural businesses selected.

RELIABILITY OF ESTIMATES (SAMPLE ERROR)

13 The estimates in this publication are based on information obtained from agricultural businesses that responded to the 2016-17 REACS. The sample population for the REACS is drawn from the total agricultural business population in scope of the collection, and are subject to sampling variability; that is, they may differ from the figures that would have been produced if all businesses had been included in the survey.

14 One measure of the likely difference is given by the standard error (SE) which indicates the extent to which an estimate might have varied by chance because only a sample was taken or received. There are approximately two chances in three that a 'sample' estimate will differ by less than one SE from the figure that would have been obtained if all establishments had responded or been reported for, and approximately 19 chances in 20 that the difference will be less than two SEs.

15 In this publication, 'sampling' variability of the estimates is measured by the relative standard error (RSE) which is obtained by expressing the SE as a percentage of the estimate to which it refers. Most published estimates have RSEs less than 10%. For some states and territories with limited production of certain commodities, RSEs are greater than 10%. Estimates that have an estimated RSE between 10% and 25% should be used with caution as they are subject to sampling variability too high for some purposes. Estimates with an RSE between 25% and 50% should also be used with caution as they are subject to sampling variability too high for most practical purposes. Estimates with an RSE greater than 50% are considered too unreliable for general use.

16 RSEs for all published estimates are available on request.

17 A table with RSEs for the principal commodities follows:

RELATIVE STANDARD ERRORS OF SELECTED ESTIMATES - year ended 30 June 2017
	Aust.	NSW	Vic.	Qld	SA	WA	Tas.	NT	ACT
	%	%	%	%	%	%	%	%	%
Barley for grain - Production (t)	2.5	4.1	5.1	10.8	3.8	6.2	9.8	-	-
Canola - Production (t)	2.7	3.4	7.6	46.1	6.7	4.4	15.3	-	-
Grain sorghum - Production (t)	4.8	8.0	14.3	6.8	80.2	41.8	-	-	-
Oats for grain - Production (t)	2.9	5.4	8.3	33.4	8.6	4.0	10.4	-	-
Wheat for grain - Production (t)	1.4	2.5	4.2	5.4	2.7	2.8	7.0	-	-
Total Dairy cattle (no.)	3.0	8.0	4.4	8.6	6.3	9.7	3.3	-	-
Total Meat cattle (no.)	1.7	2.6	4.2	3.3	5.4	3.3	4.7	1.5	3.7
Total Sheep and lambs (no.)	1.3	2.1	3.7	7.3	2.7	3.2	3.3	50.3	0.2

ROUNDING AND CONFIDENTIALITY

18 Where figures for individual states or territories have been suppressed for reasons of confidentiality, they have been included in relevant totals.

19 Where figures have been rounded, discrepancies may occur between sums of the component items and totals.


RELATED PUBLICATIONS

20 The full range of final estimates from the 2016-17 REACS will be progressively published in Agricultural Commodities, Australia, 2016-17 (cat. no. 7121.0), Water Use on Australian Farms (cat. no. 4618.0) and Land Management and Farming in Australia (cat. no. 4627.0) from mid-2018.

21 Preliminary estimates of the gross value of principal agricultural commodities from the 2016-17 Value of Agricultural Commodities Produced (VACP) Collection are available at the same time as preliminary quantity and production estimates. These estimates are published in Value of Principal Agricultural Commodities Produced, Australia, Preliminary (cat. no. 7501.0). The full range of final estimates from the 2016-17 VACP Collection will also be published in mid-2018, in Value of Agricultural Commodities Produced, Australia, 2016-17 (cat. no. 7503.0).

22 ABS publications related to the 2016-17 REACS can be accessed under the Statistics page on the ABS website. The ABS also issues a daily Release Advice on the website which details products to be released in the week ahead.


ABS DATA AVAILABLE ON REQUEST

23 As well as the statistics included in this and related publications, the ABS may have other relevant data available on request. Inquiries should be made to the National Information and Referral Service on 1300 135 070.


GENERAL ACKNOWLEDGMENT

24 ABS publications draw extensively on information provided freely by individuals, businesses, governments and other organisations. Their continued cooperation is very much appreciated. Without it, the wide range of statistics published by the ABS would not be available. Information received by the ABS is treated in strict confidence as required by the Census and Statistics Act 1905.