Definitions for "Subirrigation"
Water is applied in open ditches or tile lines until the water table is raised enough to wet the soil.
Applying irrigation water below the ground surface either by raising the water table within or near the root zone or by using a buried perforated or porous pipe system that discharges directly into the root zone.
Application of irrigation water below the ground surface by raising the water table to within or near the root zone (ASAE).