[Storage of forest [nursery] plants with forced cooling by in-storing and forced thawing by finished storage. Work schedule report]

agua cold storage control de la humedad cooling cultivo forzado eau enfriamiento forcing forest nurseries freezing humidity control insulating materials keeping quality materiales aislantes noruega norway pepiniere forestiere plant plante ligneuse planting stock plastics refroidissement stockage au froid storehouses temperatura temperature thawing ventilation viveros forestales water woody plants