Mention any five features of laterite soil
Answers
Laterites are soil types rich in iron and aluminium, formed in hot and wet tropical areas.Nearly all laterites are rusty-red because of iron oxides.They develop by intensive and long-lasting weathering of the underlying parent rock.
Tropical weathering (laterization) is a prolonged process of chemical weathering which produces a wide variety in the thickness, grade, chemistry and ore mineralogy of the resulting soils.
Thick laterite layers are porous and slightly permeable, so the layers can function as aquifers in rural areas.
Laterites are a source of aluminium ore; the ore exists largely in clay minerals and the hydroxides, gibbsite, boehmite, and diaspore, which resembles the composition of bauxite. In Northern Ireland they once provided a major source of iron and aluminium ores. Laterite ores also were the early major source of nickel.
Explanation:
1.The soils are acidic in nature, coarser and crumbly in texture.
(ii) Due to lack of nitrogen, potassium and organic elements, the laterite soils lack fertility, and are not suitable for cultivation. But when the soils are manured and irrigated, some crops can be cultivated.
(iii) As the soils are indefinitely durable, so they provide valuable building materials.
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