The growth of the sweet white lupin industry in Western Australia is a classic case of the adoption and diffusion of a new innovation in agriculture. In 1979, following the release of the cultivar lllyarrie, and the development of effective agronomic practices, the Western Australian Department of Agriculture (DAWA) commenced a major extension campaign to promo..lupins. Between 1978 and 1992 the area of Lupins grown increased from 39,000 to 822,OOO hectares. However, the pattern of adoption varied widely between regions, with differences in starting time, rate and ceiling levels of adoption. In this paper we examine regional differences in the adoption process, and estimate the impact of various factors using multivariate regression analysis. Results suggest that both DAWA extension activities and the presence of private consult. Lilts contributed to earlier start times of the adoption process.


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