This paper draws on the experience of on-farm research (OFR) projects in Swaziland and Zambia, in which Training and Visit (T&V) extension methods have been employed. Despite the claims that both OFR and T&V procedures ...

This paper profiles farmers' adoption behavior and varietal choices with respect to local and improved maize technologies (variety, fertilizer application, and other agronomic practices) in three agroeconomic zones of ...