‘어항 위에 상추’ 물고기•채소 함께 기른다 Korean researchers have developed a cost-effective hydroponic system which uses water and nutrition from fish tanks to grow vegetables….
‘어항 위에 상추’ 물고기•채소 함께 기른다 Korean researchers have developed a cost-effective hydroponic system which uses water and nutrition from fish tanks to grow vegetables….