Hand Harvested Vegetable Residue

Vegetable residue volumes have been estimated by using a conversion factor for paddock losses on the amounts of individual vegetables produced that is reported in the 2015-16 SA2 data. Individual loss percentages were sourced from literature for each of the vegetables and this was used with their production to generate individual loss volumes. These were then combined to give an overall hand harvest residue estimate. Hand harvested vegetables were grouped together as unsaleable vegetable are often left in the field during harvest and there is a significant cost associated with obtaining these residues to cover harvest costs. (Growers have mentioned harvest costs of $0.50 per kg or $500 per tonne) Paddock loss estimates used were: Vegetable Percentage Paddock Loss Estimate Beans 25% Broccoli 32% Capsicums 26% Cauliflower 37% Green Peas 25% Lettuces 14% Melons 25% Pumpkins 25% Sweet Corn 27% Tomatoes 25% Dry weight tonnes has been calculated using an average dry weight percentage of 11.3%. This figure varies from 3.6%-26.6% depending on the crop.

Residue volumes that are actually produced may vary from what is reported. However, data should give an indication of what is available at each location.

References:

Rogers, G., Ekman, J., Titley, M. (2013) Identifying new products, uses and markets for Australian vegetables – a desktop study. Final report to Horticulture Australia, project VG12046. http://ausveg.com.au/intranet/technical-insights/docs/130052_VG12046.pdf.

ABS data, creative commons statement, copyright and disclaimers can be viewed at, http://www.abs.gov.au/AUSSTATS/abs@.nsf/DetailsPage/7121.02010-11?OpenDocument The core 2015/16 ABS rural commodities data (SA2) can be sourced at, http://www.abs.gov.au/AUSSTATS/abs@.nsf/DetailsPage/7121.02015-16?OpenDocument

DISCLAIMER: While all reasonable care has been taken in the preparation of the material in this file, the Western Australian Government and its officers accept no responsibility for any errors or omissions it may contain, whether caused by negligence, or otherwise, or for any loss, however caused, sustained by any person who relies on it. Copyright © Western Australia Agriculture Authority, 2017