What is to plow, harrow, and break up, as land, without seeding, for the purpose of destroying weeds and insects, and rendering it mellow; as, it is profitable to fallow cold, strong, clayey land called?

fallow — To plow, harrow, and break up, as land, without seeding, for the purpose of destroying weeds and insects, and rendering it mellow; as, it is profitable to fallow cold, strong, clayey land. (Webster's 1913.)

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