Dark, fertile soil, especially in the prairie regions of Texas and other parts of the southern United States.
From 'black' + 'land.' A geographical term for specific soil types found in prairie regions, named for their dark color caused by high organic matter and clay content.
Blackland prairie soil is extraordinarily fertile because of its dark clay and high organic matter—Texas's blackland belt was once grassland that produced some of the richest farmland in America before it was plowed.
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