Title:Comparación de los extractos fermentados de consuelda (Symphytum officinale L.) y borraja (Borago officinalis L.) y sus efectos como biofertilizante en agricultura ecológica. / Comparison between comfrey (Symphytum officinale L.) and borage (Borago officinalis L.) fermented extracts and their effects as biofertilizer in agriculture.