This study attempts to show the relationship of the adoption of Extension recommended agricultural practices with 18 variables pertaining to farm operators in Korean farm communities, to understand the time lag between scientific discovery and use of new developments in agriculture; and to contribute to the practical implications for action programs in the promotion of improvements in agriculture, and to the theory of technological and social change. A sample of 266 farm operators were selected for study from three randomly chosen agricultural communities. Five independent variables were used: personal and family variables; socioeconomic status; social participation; communication variables; and scientific farming orientation. Three control variables were introduced in the analysis of the relationship between variables. The Kendall's Tau was used to measure the degree of association, and a significance test, at 5% level, used to determine the reliability of the association. Some of the conclusions were: for the most part selected personal and family variables were associated with practice adoption; however age of farm operators was not significantly related. Experience in farming, and socioeconomic status and social participation, were positively associated with adoption. (Author/PT)