This paper proposes a circular knowledge management model for agricultural extension practice. The model incorporates tacit and explicit knowledge to inform the nature of extension services. It is based on empirical assessment of agricultural extension in Ghana. The author recommends agricultural extension experts adopt the circular knowledge management model. He argues that farmers are more likely to adopt technologies when they realise that their own inputs and contributions have been incorporated in the design and development. Incorporating tacit knowledge in knowledge management will enhance the collaboration between farmers and extension experts. This will bridge the knowledge divide between farmers and extension experts in search of knowledge.