| The Columbia Encyclopedia, Sixth Edition. 2001-07. |
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| Tull, Jethro |
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| 1674–1741, English agriculturist and inventor. He studied methods of agriculture in England, France, and Italy and influenced British agriculture through his writings, which include The Horse-Hoeing Husbandry (1733). Tull advocated the use of manures, pulverizing the soil, planting with drills, and thorough tilling during the growing period. He invented (c.1701) a mechanical drill for sowing. |
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| | | The Columbia Encyclopedia, Sixth Edition. Copyright © 2007 Columbia University Press. |
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