Irrigation device (1) comprising: - an element for absorbing water (2) with a permeable wall (3), extending along a longitudinal direction (l), - two connection configurations (11a, 11b) for the connection of other irrigation devices (1a, 1b), which are formed on the opposite front faces of the water absorption element (2) along the longitudinal direction ( l), - a drainage device (4), which divides the volume of the water absorption element (2) into a drainage volume (5) and a volume of substrate (6), wherein the volume of drainage (5) and the volume of substrate (6) are hydraulically linked together, and/or - at least one irrigation element (7), which extends substantially along the longitudinal direction (l) and which is hydraulically connected to the volume of substrate (6) through holes for the water outlet (8), Wherein the wall (3) of the water absorption element (2) has at least one opening (9), which extends in the circumferential direction (u) of the water absorption element (2) along the a distance of 0.5 times the perimeter maximum, where the opening is dimensioned in such a way that the interior of the water absorption element (2) can be filled with a substrate (10). (Machine-translation by Google Translate, not legally binding)1. Dispositivo de riego (1) que comprende:- un elemento para la absorción de agua (2) con una pared permeable (3), que se extiende a lo largo de una dirección longitudinal (L),- dos configuraciones de conexión (11a, 11b) para la conexión de otros dispositivos de riego (1a, 1b), que están conformadas en las caras frontales opuestas del elemento para la absorción de agua (2) a lo largo de la dirección longitudinal (L),- un dispositivo de drenaje (4), que divide el volumen del elemento para la absorción de agua (2) en un volumen de drenaje (5) y un volumen de substrato (6), en donde el volumen de drenaje (5) y el volumen de substrato (6) están hidráulicamente unidos entre sí, y/o- al menos un elemento de riego (7), que se extiende su
