Plant Experimental Conditions Ontology Ontology of Smart Agriculture Source
http://purl.obolibrary.org/obo/ENVO_00001998 http://lod.nal.usda.gov/nalt/63334 LOOM
http://purl.obolibrary.org/obo/ENVO_00002005 http://lod.nal.usda.gov/nalt/5822 LOOM