The diversity of postharvest losses in cassava value chains in selected developing countries

The extent of physical and economic postharvest losses at different stages of cassava value chains has been estimated in four countries that differ considerably in the way cassava is cultivated, processed and consumed and in the relationships and linkages among the value chain actors. Ghana incurs by far the highest losses because a high proportion of roots reach the consumers in the fresh form. Most losses occur at the last stage of the value chain. In Nigeria and Vietnam processors incur most of the losses while in Thailand most losses occur during harvesting. Poorer countries incur higher losses despite their capacity to absorb sub-standard products (therefore transforming part of the physical losses into economic losses) and less strict buyer standards. In monetary terms the impact of losses is particularly severe in Ghana and estimated at about half a billion US dollar per annum while in the other countries it is at the most about USD 50 million. This comparison shows that there are no “one-size-fits-all" solutions for addressing postharvest losses but rather these must be tailor-made to the specific characteristics of the different value chains

Postharvest losses in cassava value chains differ across countries and demand tailor-made solutions

The extent of physical and economic postharvest losses at different stages of cassava value chains has been estimated in four countries that differ considerably in the way cassava is cultivated, processed and consumed and in the relationships and linkages among the value chain actors. Ghana incurs by far the highest losses because a high proportion of roots reach the consumers in the fresh form. Most losses occur at the last stage of the value chain. In Nigeria and Vietnam processors incur most of the losses while in Thailand most losses occur during harvesting. Poorer countries incur higher losses despite their capacity to absorb sub-standard products (therefore transforming part of the physical losses into economic losses) and less strict buyer standards. In monetary terms the impact of losses is particularly severe in Ghana and estimated at about half a billion US dollar per annum while in the other countries it is at the most about USD 50 million. This comparison shows that there are no “one-size-fits-all" solutions for addressing postharvest losses but rather these must be tailor-made to the specific characteristics of the different value chain

Smallholder Cocoa Farmers Access to On/Off-Farm Support Services and its Contribution to Output in the Eastern Region of Ghana

It has been established that smallholder farmers have minimal access to various support services that would have otherwise enabled them to increase their output levels. The focus of this paper is to identify and quantify the impact of various support services on the production levels of cocoa in the Eastern region of Ghana. A cross sectional survey of 190 cocoa farmers was obtained using a two-stage sampling technique (purposive and random). Descriptive statistics and an OLS regression model were used to analyse and discuss the results of the study. The various support services identified included labour services, financial services, technical assistance, farmer group support services, Research and Development (R&D) institutional support services, extension services and input support services. The services that significantly influenced output levels of cocoa were extension services, labour supply and technical assistance, among other variables including farm size and quantity of agrochemical used. It is recommended that access to these support services be improved in order to realise an increase in output for the smallholder cocoa farmer

Strengthening decision-making on sustainable agricultural intensification through multi-stakeholder social learning in sub-Saharan Africa

Increasing and competing demands on agriculture in sub-Saharan Africa mean that policy and investment decisions become more complex. Despite growing consensus on the need for sustainable agricultural intensification, there is limited agreement on how to achieve this in practice. Governments and societies face uncertainty and complex choices. This paper explores the potential of Multi-Stakeholder, Social Learning (MSL) approaches, facilitated by National Learning Alliances (NLAs), to improve policy and investment decisions. Comparative evidence from a donor-supported research and learning programme in Ethiopia, Ghana, Malawi, Tanzania and Zambia is used in a theory-based evaluation approach to assess the contribution of the NLAs to capacity and practice change amongst individuals, networks and senior decision-makers. Ten outcome cases are explored, including their contribution to systemic changes in the governance of evidence. Key lessons included: the value to decision-makers of engaging with informal networks; importance of combining dialogue, deliberation and experiential learning; the need to create safe spaces in national level MSL processes; the demanding combination of facilitation skills and commitment; and appropriately flexible support. This suggests a need not only for the production of quality research, but crucially support for MSL as a means of contributing to the good governance of evidence and sustainable change