The increasing complexity of technology development and adoption is rapidly changing the effectiveness of scientific and technological policies. Complex technologies are developed and disseminated by networks of agents. The impact of these networks depends on the assets they command, their learning routines, the socio-economic environment in which they operate and their history.

This chapter documents the learning process within the framework of innovation of soil fertility management practices that emerged from the implementation of Participatory Extension Approach (PEA) as part of service delivery reorientation within the Limpopo Department of Agriculture in South Africa.The chapter gives a narrative description of what transpired during the interaction between researchers, extension officers and farmers, the processes involved, the lessons and the conclusion.

There is renewed attention on the importance of advisory services and extension in rural development processes. This paper, based on the publication ‘Mobilizing the potential of rural and agricultural extension', focuses on five opportunities to mobilise the potential of extension and advisory services. The five areas are: (1) focusing on best-fit approaches; (2) embracing pluralism; (3) using participatory approaches; (4) developing capacity; and (5) ensuring long-term institutional support.

The purpose of this piece of work is to investigate, through a literature review, the role of intermediaries in agricultural extension and rural development. In the first place, a general view of the roles of intermediaries, as depicted in literature, is presented. Then, one of the main types of intermediaries, facilitators is outlined based on a comprehensive review of the literature, particularly in the healthcare sector.

This book describes how the Alliance for a Green Revolution in Africa (AGRA) has been trying to improve markets for staple foods in Africa through its Market Access Programme. It describes 13 projects from eight countries (Burkina Faso, Ghana, Kenya, Malawi, Mozambique, Rwanda, Tanzania and Uganda) that the programme has supported. The book does not attempt to describe the cases in detail. Rather, it focuses on particular aspects in order to derive lessons from which the project managers, AGRA and other development organizations can learn.

This synthesis report presents the outputs of the workshop organised by CTA at its headquarters in Wageningen, The Netherlands, 15-17 July 2008.  The outputs are presented in two main parts, each corresponding to one of the workshop objectives, and ends with a section on the way forward as suggested by the workshop participants. It also includes a first attempt to come to a consolidated generic framework on AIS performance indicators, based on the outputs of the different working groups.

This review of literature on evaluation methods focuses specifically on approaches and methodologies in evaluation which are relevant for evaluating initiatives in extension or rural advisory services. The context and scope of the review are discussed, followed by sections addressing the purposes, users and uses of evaluation, evaluation standards and criteria, approaches, rigour and attribution.

Based on international literature, preliminary experiences in a three-country West African research programme, and on the disappointing impact of agricultural research on African farm innovation, the current paper argues that institutional change demands rethinking the pathways to innovation so as to acknowledge the role of rules, distribution of power and wealth, interaction and positions. The time is opportune: climate change, food insecurity, high food prices and concomitant riots are turning national food production into a political issue also for African leaders.

This presentation outlines the following topics:a) Changing Context of Agricultural Technology Transfer: Emerging Realities in Asia-PacifiC; b) Technology Transfer within the Agricultural Innovation System; c) Agricultural Extension in Agricultural Innovation System; d) Supply Chain Management Approach and the Role of Extension; e) Major Areas for Mobilizing the Potential of Agricultural Extension/Rural Advisory Services.

This sourcebook contributes to identifying, designing, and implementing the investments, approaches, and complementary interventions that appear most likely to strengthen Agricultural innovation systems (AIS) and to promote agricultural innovation and equitable growth. It emphasizes the lessons learned, benefits and impacts, implementation issues, and prospects for replicating or expanding successful practices. The information in this sourcebook derives from approaches that have been tested at different scales in different contexts.