 | Repertory of arts, manufactures and agriculture - 1805 - 534 Seiten
...385. This limestone i» found abundantly in Yorktlnre, Derby hire, and Somersetshire. or in vallies*. The productiveness of soils must likewise be influenced...XVIII. Of the chemical Composition of fertile Corn Softs in this Climate. Those soils that are most productive of corn contain always certain proportions... | |
 | Friedrich Christian Accum - 1808 - 492 Seiten
...on declivities, ought to be more absorbent than those in the same climate on plains or in vallies.* The productiveness of soils must likewise be influenced...by the influence of a substratum of sand or gravel. 18. Of the Chemical Composition of fertile Corn Soils in this Climate. Those soils that are most productive... | |
 | John Murray - 1809 - 780 Seiten
...influenced by the nature of the sub-soil, or the earthy and stony strata on which they rest. Thu?, a sandy soil may sometimes owe its fertility to the...be prevented from being barren, in a moist climate, fcy the influence of a substratum of sand or gravel." Besides aproper soil, the due application of... | |
 | Friedrich Christian Accum - 1814 - 484 Seiten
...nature of the subsoil, or the earthy «r stony strata on which they rest ; and this circumstance •ught to be particularly attended to, in considering their...climate, by the influence of a substratum of sand •r gravel. 18. Of the Chemical Composition of fertile Corn Soils in this Climate. *' Those soils... | |
 | Andrew Ure - 1821 - 418 Seiten
...attended to, in considering their chemical nature, and the system of improvement. Thus a sandy soil may owe its fertility to the power of the sub-soil to...by the influence of a substratum of sand or gravel. Those soils that are most productive of corn, contain always certain proportions of aluminous or calcareous... | |
 | Andrew Ure - 1821 - 512 Seiten
...and the system of improvement. Thus a sandy soil may owe its fertility to the power of the sub-yoil to retain water; and an absorbent clayey soil may...by the influence of a substratum of sand or gravel. TI lose soils that arc moit productive of corn, contain always certain proportions of aluminous or... | |
 | Anthony Todd Thomson - 1822 - 778 Seiten
...influenced by the nature of the subsoil, " or the earthy and stony strata on which they VOL. I. Q " rest. Thus, a sandy soil may sometimes owe its " fertility...to retain "water; and an absorbent clayey soil may oc" casionally be prevented from being barren, in a " moist climate, by the influence of a substra"... | |
 | F. ACCUM - 1828 - 526 Seiten
...on declivities, ought to be more absorbent than those in the same climate on plains or in valleys *. The productiveness of soils must likewise be influenced...by the influence of a substratum of sand or gravel. 16. — Of the chemical composition of fertile Corn soils in this climate. — Those soils that are... | |
 | Library, John Baxter - 1830 - 614 Seiten
...and the system of improvement. Thus a sandy soil may owe its fertility to the power of the subsoil lo retain water : and an absorbent clayey soil may occasionally...by the influence of a substratum of sand or gravel. Those soils that are most productive of corn, contain always certain proportions of aluminous or calcareous... | |
 | 1839 - 520 Seiten
...likewise be influenced by the nature of the subsoil, or the earthy and stony strata on which they rest. Thus, a sandy soil may sometimes owe its fertility...by the influence of a substratum of sand or gravel. Every farmer knows the fact, that many plants «• ill grow only in certain soils; and his art consists... | |
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The productiveness of soils must likewise be influenced by the nature of the subsoil, or the earthy or stony strata on which they rest ; and this circumstance ought to be particularly attended to, in considering' their chemical nature, and the system... 
