1. Improved tubular device for hydroponic cultivation composed from an irrigation channel (1) for hydroponic crops, internal and external walls (7) and (8) respectively, partitions (6), side slits (4) , a female connection socket (10), channels or grooves (5), a longitudinal cover (2) with male connections (9) characterized in that the channel (1) has an internal surface (8) extruded on which There are grooves or channels (5) that are geometrically and quantitatively variable.
