The horse-hoeing husbandry: or, an essay on the principles of tillage and vegetation ... / By I.T. [J. Tull].

  • Jethro Tull
Date:
1733
Catalogue details

Licence: Public Domain Mark

Credit: The horse-hoeing husbandry: or, an essay on the principles of tillage and vegetation ... / By I.T. [J. Tull]. Source: Wellcome Collection.

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    par] Cuar. I] OFROOTS: INCE the moft immediate Ufe of Agricul- ture, in feeding Plants, relates to their Roots, they ought to be treated of in the firft Place. 7 | Roots are very different in different Plants, but ’tis not neceflary here to take notice of all the nice Diftinétions of them ; therefore I thall only di-. vide them in general into Two Sorts, viz. Horizon- tal-Roots, and Tap-Roots, which may include them all. All have Branchings and Fibres going all manner of ways, ready to fill the Earth that is open. But fuch Roots as I call Horizontal (except of Trees) have feldom any of their Branchings Deeper than the Surface or Staple of the Earth, that is com- - monly mov’d by the Plow or Spade. ~ The Tap-Root commonly runs down Single and Perpendicular, reaching fometimes many Fathoms ~ below. This (tho’ it goes never fo deep) has Horizon- tal ones pafling out allround the Sides; and extends to feveral Yards diftance from it, after they are by | their minutenefs, and earthly Tin¢éture, become In- vilible to the naked Eye. ¢ C 2 A Me-