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From Agricultural Experiment Station to Farm: The Impact of the Promotion of a New Technology on Farmers' Yields in Ethiopia
Economic Development and Cultural Change ( IF 1.507 ) Pub Date : 2020-04-01 , DOI: 10.1086/701234
Joachim Vandercasteelen , Mekdim Dereje , Bart Minten , Alemayehu Seyoum Taffesse

Adoption of yield-increasing technologies is crucial to boost staple food production in sub-Saharan Africa. However, empirical evidence is lacking on the impact of improved agricultural technologies that are scaled up from research at agricultural experiment stations to the farm level. We assess the impact of a new technology, row planting, on farmers’ yields of teff in Ethiopia. Results of a randomized controlled trial show that row planting did not significantly affect teff yields at the farm level. While the treatment effect measured on village demonstration plots managed by extension agents is significant and positive, its magnitude is still lower than the productivity gains found on research plots. To explain the yield gaps between research plots at experiment stations, village demonstration plots, and farm plots, ex post analysis of treatment heterogeneity shows that the literacy level and information access of adopting households have significant interaction effects. Results further suggest that the yield gap is linked to the quality of extension and timely input delivery provided to farmers when transmitting the technology to the field. Greater attention to the design and implementation of public promotion programs appears critical to effectively scale up the adoption of improved technologies in these settings.

中文翻译:

从农业试验站到农场:新技术推广对埃塞俄比亚农民产量的影响

采用增产技术对于促进撒哈拉以南非洲的主食生产至关重要。然而,从农业试验站的研究扩大到农场层面的改进农业技术的影响缺乏经验证据。我们评估了一项新技术(行种植)对埃塞俄比亚画眉草农民产量的影响。随机对照试验的结果表明,行种植对农场层面的画眉草产量没有显着影响。虽然对推广人员管理的村庄示范地块测量的处理效果显着且为正,但其幅度仍低于在研究地块上发现的生产力增益。为了解释试验站研究地块、村庄示范地块和农田地块之间的产量差距,处理异质性的事后分析表明,收养家庭的识字水平和信息获取具有显着的交互作用。结果进一步表明,产量差距与将技术传输到田间时向农民提供的推广质量和及时投入交付有关。更加关注公共促进计划的设计和实施对于在这些环境中有效扩大改进技术的采用似乎至关重要。
更新日期:2020-04-01
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