[See FALLOW sb. 2.] A lying or laying fallow during the summer; also, land that lies fallow during the summer.

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1733.  Tull, Horse-Hoeing Husb., vii. 78. This sort of Hoeing has … every year the Effect of a Summer-fallow.

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1765.  Museum Rust., IV. 143. The ill consequence of not giving it a summer-fallow to clean the ground thoroughly.

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1801.  Farmer’s Mag., Jan., 85. The quantity of ground under Summer-fallow this year.

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1844.  H. Stephens, Bk. Farm, III. 990. The sowing of the fallow-crop on the summer-fallow is delayed to autumn.

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1875.  Encycl. Brit., I. 340/1. That prolonged form of it [sc. the fallowing process] called a summer or naked fallow.

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  b.  as adj. Lying fallow during the summer.

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1801.  Farmer’s Mag., Jan., 105. The months of November and December were very favourable for getting the Summer-fallow land seed-furrowed.

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1844.  H. Stephens, Bk. Farm, III. 999. I … trenched 13 acres of my summer-fallow break in the months of June and July.

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