The agINFRA project focuses on the production of interoperable data in agriculture, starting from the vocabularies and KOS used to classify and an-notate them. In this paper we report on our first steps in the direction of con-tributing to a LOD of agricultural data. In particular we look at germplasm data and soil data, which are still widely missing from the LOD landscape, seeming-ly because information managers in this field are still not very familiar with LOD practices.