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



(1646) Soil separates
Mineral particles, less that 2.0 mm. in equivalent diameter, ranging between specified size limits. The names and the size limits of separates recognized in the U.S. are : very coarse sand, 2.0 to 1.0 mm ; coarse sand, 1.0 to 0.5 mm; medium sand, 0.5 to 0.25 mm ; fine sand, 0.25 to 0.10 mm; very fine sand, 0.10 to 0.05 mm; silt, 0.05 to 0.002 mm; and clay less than 0.002 mm. The separates recognized by the International Society of Soil Science are : 1) coarse sand, 2.0 to 0.2 mm; 2) fine sand, 0.2 to 0.02 mm ; 3) silt, 0.02 to 0.002 mm; and 4) clay, less than 0.002 mm.

Irrigation

Dictionary - Waterlogging and Soil Salinity Terms

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