Multi-Crop Passport Ontology The Extensible Observation Ontology Source
http://www.cropontology.org/rdf/Time http://ecoinformatics.org/oboe/oboe.1.2/oboe-characteristics.owl#Time LOOM
http://www.cropontology.org/rdf/Measurement http://ecoinformatics.org/oboe/oboe.1.2/oboe-core.owl#Measurement LOOM