Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field unknown
Is Reference of Naturlig gødskning-da#Sense
Fertilización natural-es#Sense
Natural fertilization-en#Sense
Naturlig gödsling-sv#Sense
Luonnonlannoitus-fi#Sense
Natuurlijke bemesting-nl#Sense
Concimazione naturale-it#Sense
Natürliche Düngung-de#Sense