Effect of irrigation water quality on physical properties of some calcareous soil in Nineveh governorate (in Iraq)
1985
Al-Timimi, A.F.A.
Physical characteristics of soil irrigated with different sources of water, supply and rainfed system, have been investigated. Soil samples were taken comparatively from different parts of Nineveh governorate The results were: irrigated soils showed decreasing of MWD and aggregates (4-8 mm) in irrigation soils compared to rain fed soil at Singar and Esky-Mosul. Aggregates of (1-2 mm), (0.5-1.0 mm) (0.2-0.5 mm) behaved reversely compared to large aggregates (4-8 mm). Modulus of rupture (MOR) increased for surface and subsurface layers in irrigated sites. Available moisture content decreased with increasing depth of irrigation sites, except Singar. The bulk density of irrigated sites was higher than this of rainfed in the surface layer, in particular electric conductivity (ece) of paste saturation increased in irrigated sites in all layers and correlated with electric conductivity of irrigation water
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