International Commission on Irrigation & Drainage Commission Interationale des Irrigation et du Drainage



(5196) Parallel field ditch system
A system similar to bedding, except that the drains are spaced farther apart and have a greater capacity than the dead furrows. The minimum depth of the ditch is 0.25 m (0.75 ft) and the minimum cross-section area 0.50 square metre (5 square feet) (illustrated).

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