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Studies on subsoil improvement and irrigation-drainage system for clayey paddy fields



Studies on subsoil improvement and irrigation-drainage system for clayey paddy fields



Tenth Congress on Irrigation and Drainage, Athens, 1978 Transactions Volume IV: 34/3/455-34/1/468



The physical characteristics of clayey paddy fields in Japan are descibed. A system of pipe (PVC or clay) drains laid at a depth of 0.6-1 m and covered with filter materials, combined with mole drains at 0.35-0.45 m depth and at right angles to the pipe drains has allowed rapid drainage even in impermeable paddy soils.

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Accession: 001129079

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