Metadata interoperability allows the exchange and preservation of crucial learning and teachinginformation, as well as its future reuse among a large number of different systems and repositories. This paper introduces work around metadata interoperability that has taken place in the context of the Agricultural Learning Repositories Task Force (AgLR-TF), an international community of the stakeholders that are involved in agricultural learningrepositories. It particularly focuses on a review and assessment of metadata application profiles that are currently implemented in agricultural learning repositories. The results of this study canbe found useful by who are designing, implementing and operating agricultural learning repositories, facilitating thus metadata interoperability in this application field.