Information Intervention, Soil Testing and Formulated Fertilization Technology and the Reduction of Fertilizer Application in Economic Forests-from the Perspective of Information Transmission

【Objective】In this paper we investigated the effect of soil testing and formula fertilization technology on the application of chemical fertilizer in economic forest, and further analyzed the mechanism and different impact of farmers' training on the adoption of soil testing and formula fertilization technology, in order to explore effective method to promote soil testing and formula fertilization technology.【Method】Based on theoretical analyses, and the survey data from 314 farmers in 10 counties of Zhejiang Province in 2018, an empirical analysis was conducted with the method of Propensity Score Matching（PSM）.【Result】Result showed that soil testing and formula fertilization technology significantly reduced the application of chemical fertilizer about 271.65 kg·hm-2, with the supplement of soil nutrient and chemical fertilizer quality information. The training significantly improved the adoption of soil testing and formula fertilization technology by 15%, by providing more technical information. However, the