Reduction of post-harvest loss (PHL) can play an important role in complementing efforts to address food security challenges. This paper used data from 390 small-scale maize farmers in Kilosa, Tanzania to analyse the impact of post-harvest management training and the supply of hermetic bags on food insecurity status in a framed field experiment setting with two treatments. In the first treatment group, farmers were trained on post-harvest management, and in the second treatment they were given the same training as the first treatment group and were, in addition, provided with hermetic bags for storing maize. Our estimations show that the interventions had an impact in reducing maize PHL and household food insecurity. The intervention combining training and supply of hermetic bags abated maize PHL by 53%, whereas the training intervention alone abated PHL by 26%. Further, the intervention combining training and supply of hermetic bags reduced the household food insecurity access scale (HFIAS) score by 30.9% while the training intervention alone reduced it by 10.8% relative to the control group. The two interventions also lowered the probability of treated households experiencing moderate or severe food insecurity, and increased the probability of households being food secure or mildly insecure relative to the control group. Notably, the intervention which combined training and supply of hermetic bags had a significantly larger impact compared to the one providing training only. These results imply that more investment should be done on interventions to reduce PHL to complement efforts to improve food security. They also point to possible affordable interventions to reduce maize PHL and the importance of supplying material support in addition to training to minimize PHL and improve food security in Tanzania.

中文翻译：

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密封储物袋供应和培训对坦桑尼亚粮食安全的影响

减少收获后损失 (PHL) 可以在补充应对粮食安全挑战的努力方面发挥重要作用。本文使用来自坦桑尼亚基洛萨的 390 名小规模玉米农民的数据，分析了收获后管理培训和密封袋供应对两种处理的框架田间试验环境中粮食不安全状况的影响。在第一个处理组中，农民接受了收获后管理方面的培训，在第二个处理中，他们接受了与第一个处理组相同的培训，此外还提供了用于储存玉米的密封袋。我们的估计表明，干预措施对减少玉米 PHL 和家庭粮食不安全产生了影响。密封袋的培训和供应相结合的干预措施使玉米 PHL 减少了 53%，而单独的培训干预使 PHL 降低了 26%。此外，与对照组相比，将培训和密封袋供应相结合的干预措施将家庭粮食不安全获取量表 (HFIAS) 得分降低了 30.9%，而单独的培训干预措施将其降低了 10.8%。与对照组相比，这两项干预措施还降低了接受治疗的家庭出现中度或重度粮食不安全的可能性，并增加了家庭粮食安全或轻度不安全的可能性。值得注意的是，与仅提供培训的干预措施相比，将培训和密封袋供应相结合的干预措施的影响要大得多。这些结果意味着应该对减少 PHL 的干预措施进行更多投资，以补充改善粮食安全的努力。