Adapting to High Temperatures: Effect of Farm Practices and Their Adoption Duration on Total Value of Crop Production in Uganda
利用乌干达家庭调查和气候数据，研究发现采用有机肥和玉米-豆类间作能提高作物生产总价值，且效果随温度升高而增强，持续采用时间越长收益越大。
In this article, we use spatially granular climate data merged with four waves of household survey data in Uganda to examine empirically the relationships among high temperatures, total value of crop production, and the adoption and adoption duration of two sustainable agricultural practices (organic fertilizer adoption and maize–legume intercropping). We do this using a fixed‐effect model with instrumental variables to address potential endogeneity issues. Our findings indicate that the adoption of these practices has a positive effect on the total value of crop production, and such effect increases monotonically as temperatures increase from long‐term averages. Moreover, the number of years a farmer uses the practice is associated with higher total value of crop production, and this relationship holds across the full distribution of high temperature deviations. Taken together, the results suggest that promoting the adoption, and particularly the sustained adoption, of these practices can help to address the risks posed by rising temperatures to Ugandan agriculture and the livelihoods of farmers who depend on it.