In theory, irrigation could affect farm households' nutritional status in either direction. On the one hand, irrigation may improve nutritional status by boosting farm productivity and household income. On the other hand, it may deter diet quality by shifting farmers' attention from nutrition-rich food to cash crops. This study examines the impact of irrigation schemes on farm households' nutritional status using nationally representative data from Ethiopia. Using the endogenous switching regression model, the study shows that irrigation improves diet quality. In addition, the study also identifies the production of micronutrient-rich crops such as vegetables and fruit and the adoption of productivity-enhancing inputs as the main pathways through which irrigation affects dietary quality. Hence, irrigation can be considered a viable instrument to enhance the diet quality of smallholders, and efforts should be made to tackle constraints that impede the adoption of irrigation technologies.

中文翻译：

---

灌溉对农户饮食质量的影响：来自埃塞俄比亚的证据

从理论上讲，灌溉可以在任一方向影响农户的营养状况。一方面，灌溉可以通过提高农业生产力和家庭收入来改善营养状况。另一方面，它可能会通过将农民的注意力从营养丰富的食物转移到经济作物上来影响饮食质量。本研究使用来自埃塞俄比亚的具有全国代表性的数据检验灌溉计划对农户营养状况的影响。使用内生转换回归模型，该研究表明灌溉提高了饮食质量。此外，该研究还确定了蔬菜和水果等富含微量营养素的作物的生产以及采用提高生产力的投入作为灌溉影响膳食质量的主要途径。因此，