56 AGRICULTURE, SYLVICULTURE ET PÊCHE | MT 5621 exploitation de la terre agricole | BT1 système de culture | RT aménagement hydroagricole [5621] | irrigation [5621]
56 AGRICULTURE, FORESTRY AND FISHERIES | MT 5621 cultivation of agricultural land | BT1 cultivation system | RT irrigation [5621] | water management in agriculture [5621]