Promoting the sustainable agricultural practices at an individual farm level is essential to ensure agricultural sustainability. This study analyzed whether and how various factors related to farm or farmers' characteristics influence the adoption intensity of sustainable agriculture practices. We used a negative binomial regression model to fit the data collected from a mail survey of farmers in Kentucky, USA. Our results showed that the adoption intensity of sustainable agriculture practices varied significantly among agricultural districts in Kentucky. Farmers who grew row crops, had irrigation facilities, and were in favor of crop diversification were significantly more likely than their respective counterparts to adopt more sustainable agriculture practices. Similarly, having a college education and participating in the Tobacco Buyout Program also positively and significantly affected the intensity of adopting sustainable agriculture practices among Kentucky farmers. In contrast, a lack of adequate knowledge about sustainable farming and an unfamiliarity with technology significantly and negatively related to less adoption of sustainable agriculture practices.
Keywords: Adoption intensity; Best management practices; Kentucky; Negative binomial regression; Small farmers.