Research Article
Determinants of Yam Postharvest Management in
the Zabzugu District of Northern Ghana
Isaac Gershon Kodwo Ansah and Bright K. D. Tetteh
Department of Agricultural and Resource Economics, Faculty of Agribusiness and Communication Sciences,
University for Development Studies, P.O. Box TL 1882, Tamale, Ghana
Correspondence should be addressed to Isaac Gershon Kodwo Ansah; agershon@uds.edu.gh
Received 5 December 2015; Accepted 8 March 2016
Academic Editor: G´ abor Kocsy
Copyright © 2016 I. G. K. Ansah and B. K. D. Tetteh. Tis is an open access article distributed under the Creative Commons
Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is
properly cited.
Postharvest loss reduction has received attention in many policy documents across nations to ensure global food security,
particularly in developing countries. Many researchers have examined various options for reducing postharvest losses. We
contribute our quota to this scientifc discourse by using a diferent approach. We argue that the human element of managing
postharvest loss is central and therefore poses the question of what are the characteristics of the farmer who manages postharvest
losses better. We examine this question by using a cross section of yam farmers in the Zabzugu district in Northern Ghana and
generate a proportional variable called postharvest management, which measures how efective a farmer works to reduce storage
losses. We then use a fractional logistic regression model to examine the determinants of postharvest management. A signifcant
result is that subsistence farmers manage postharvest losses better than commercial farmers. Characteristically, the farmer who
efectively manages postharvest losses is a young, subsistence farmer, living in or close to a district capital with fewer household
members, has attained formal education, and produces more yam. Eforts to reduce postharvest losses require the provision of
access roads to remote towns or providing efective storage techniques and training on postharvest management practices.
1. Introduction
Recent trends in global food markets indicate that unless
serious attention is given to postharvest losses, the possibility
of feeding over 9 billion people in 2020 and beyond is
shrouded in uncertainty. Tis attention is even more crucial
in developing countries where postharvest losses are high.
In the year 2011, [1] estimated that within 20%–40% of
fresh foods are lost during and afer harvesting of major
staple crops. Tis report comes many years afer the World
Food Conference convened in Rome in 1974, which drew
attention to the concept of reducing postharvest food loss as
a strategic and signifcant means to increase food availability.
According to Bourne [2] and Hodges et al. [3], one of the
most important pathways to increase food availability is to
reduce food loss and waste. Goldsmith et al. [4] further
stipulate that preventing food loss and increasing production
are the two realistic alternatives by which the world can meet
its ever rising food demand, but increased food production
actually comes from preventing losses. In the opinion of [5],
postharvest losses impose both economic and environmental
impacts.
In Ghana, root and tuber crops such as yam and cassava
are important food security crops. Next to cereals, roots and
tubers serve as important staples to a signifcant portion of the
Ghanaian populace. However, one challenge that limits the
success of these crops in improving food security is posthar-
vest losses, and genuine concerns have been raised about
these issues. A survey on postharvest losses conducted by [2]
reproduced a table from FAO on postharvest losses across
the major regions of the world and found that postharvest
losses in Sub-Saharan Africa are estimated to be 18%. Tis
fgure is substantial, considering the fact that, for every 100
tons of root and tuber crops produced, 18 tons is lost through
postharvest handling. Ghana’s Ministry of Food and Agricul-
ture (MoFA) in 2008 conducted a baseline survey on harvest
and postharvest (HPH) losses among major crops across
some regions, and the general fnding was that postharvest
Hindawi Publishing Corporation
Advances in Agriculture
Volume 2016, Article ID 9274017, 9 pages
http://dx.doi.org/10.1155/2016/9274017