关键词: 甘薯农户, 扩大种植, Logistic模型, 种植意愿, 影响因素

Abstract: This study examined the factors influencing farmers willingness to expand sweet potato cultivation in Jiangxi Province. Based on a questionnaire survey of 680 sample farmers across 11 cities with districts, the research employed the Cobb-Douglas production function as a reference framework. It incorporated variables related to labor, capital, technology and other key factors, utilizing a binary logistic regression  model to  analyze the survey. The regression analysis  revealed that five in dependent variables significantly influence  farmers  willingness to  expand sweet potato cultivation.  These  include willingness  to join  specialized agricultural cooperatives, registration of brand  trademarks for agricultural  products, output value per  hectare, degree of mechanization replacing manual labor, and the ratio of planting income to total household income. All  five variables exhibit a positive regression coefficient, aligning with expected impact judgment. This indicates that farmers who are inclined to join specialized agricultural cooperatives and register brand trademarks of agricultural products are more likely to expand sweet potato cultivation. Additionally, higher output value per unit area, greater mechanization, and a larger proportion of planting income relative to total household income further enhance the likelihood of expansion. However, contrary to expectations, the regression analysis showed that higher education levels, higher yields per hectare, and participation in planting technology training are associated with a lower willingness to expand cultivation, while higher production costs per hectare correspond to a greater likelihood of expansion. Based on these findings, the study recommends strengthening specialized sweet potato cooperatives, promoting agricultural branding through trademark registration, advancing mechanization and digital transformation, and addressing structural challenges in sweet potato production. These insights provide valuable guidance for policymakers and stakeholders in developing and optimizing the sweet potato industry in Jiangxi Province.

Key words: sweet potato farmers, expanding cultivation, Logistic model, planting willingness, influencing factors