Challenges in adoption and wide use of agroforestry technologies in Africa and pathways for improvement: A systematic review

In recent years, agroforestry technologies have emerged as promising alternative measures for addressing major environmental crises. However, their use in Africa remains below anticipated levels. Therefore, this systematic review aims to investigate the underlying reasons for the low adoption and limited use of such technologies in Africa. Employing the Preferred Reporting Items for Systematic reviews and Meta-analyses protocol (PRISMA), we conducted a comprehensive search for relevant scientific papers in databases such as Google Scholar, Scopus and Web of Science. A total of 351 articles were initially identified. Following the predefined inclusion and exclusion criteria, 36 articles were selected from which data were manually extracted for inclusion in this review. Descriptive statistics were employed to assess the farmers' perceptions of agroforestry technologies and the constraints they face when adopting them. Several constraints were identified, and the top five constraints were pests, problems of land access, lack of knowledge and skills, lack of capital and lack of seeds. To maximise the adoption of agroforestry technologies in Africa, it is imperative to introduce the technologies by considering the local context, the specific needs of farmers and the existing socio-economic dynamics. Such initiatives must include robust training and education programmes, accessible financing solutions, appropriate land tenure reforms and effective support mechanisms for access to seed and pest management. These factors could considerably improve the adoption and effectiveness of agroforestry technologies in Africa, thereby contributing to more sustainable and resilient agricultural practices.