Modular hydroponic channel assembly intended for the cultivation of plants, comprising: - at least one support structure having a profiled structure having a base and a housing in the form of a drawer, - at least one laminar body that is made from an elastically deformable material that adopts inside the support structure in a mounted condition a substantially "U" shaped cross section that acts as a channel that is arranged in the housing of the support structure, - an upper cover arranged longitudinally along the upper part of the container provided with a plurality of holes arranged along it, and - coupling means connecting the support structure, the laminar body and the upper cover, characterized in that the coupling means comprise a joining region present in the upper cover engageable with a complementary joining region present in the upper flange of the laminar body acting as a channel in a condition of use. (Machine-translation by Google Translate, not legally binding)