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INPhO, the Information Network on Post-harvest Operations, was originally designed by FAO with the support and collaboration of GIZ and CIRAD in 1996. The site has recently undergone a review and reformat to enhance the presentation and accessibility of the information available. This information resource is managed by the Rural Infrastructure and Agro-Industries Division of FAO.

The principal objectives of INPhO are to promote best practice in post-harvest activities for agricultural products and to assist in the expansion of agribusiness by providing easy access to technical data and information. 

Crop Compendium

Edible aroids are root crops grown widely in tropical and sub-tropical countries. Taro also known as cocoyam and tannia are the more common species. World taro production in 2008 was over 11 million tonnes principally in Cameroon, China, Ghana and Nigeria, with smaller production in other areas of Africa, Asia and South Pacific (FAOSTAT). The corms provide a useful carbohydrate source but must be cooked prior to consumption to detoxify the calcium oxalate ...

Author: Linus U. Opara
Technical Editor: Danilo Mejía, FAO
Last Reviewed: 28/08/2003
(pdf 27pp - 0.6Mb)

Latest Publication

Instructional Manual 2014 (Spanish) Download document
Instructional Manual 2014 (Spanish) Download document
Instructional Manual 2014 (Spanish) Download document


This section provides access to Cookbook, Videos and Food Processing Toolkit covering  relevant issues on agro-processing and post-harvest activities related to fruits and vegetables, grains and cereals, roots and tubers, livestock products among others.


The information provided in this section is intended to be used as an efficient tool to assist in skill enhancement and development in post-harvest activities and small agro-industries development.


The provision of effective training is a key aspect in promoting best practice in post-harvest operations to minimise losses and reduce waste  in the development of agroindustries and/or agro-businesses.